Page 3 - Contents; P7P55 WS Supercomputer specifications summary; Product introduction; Memory configurations
iii Contents Notices ....................................................................................................... viiiSafety information ...................................................................................... ixAbout this guide .................................................
Page 4 - Starting up for the first time; BIOS setup; Configuration fields
iv Contents 2.5.4 PCI slot ......................................................................... 2-19 2.5.5 PCI Express x1 slot ....................................................... 2-20 2.5.6 PCI Express 2.0 x16 slots ............................................. 2-20 2.6 Jumper ................
Page 6 - APM Configuration; Software support
vi Contents 3.5.7 T.Probe [Disabled] ......................................................... 3-28 3.6 Power menu ................................................................................ 3-29 3.6.1 Suspend Mode [Auto] ................................................... 3-29 3.6.2 Repost Vid...
Page 7 - RAID configurations; RAID definitions; Multiple GPU technology support; ATI
vii Contents 4.3.4 ASUS EPU-6 Engine .................................................... 4-17 4.3.5 ASUS Express Gate ..................................................... 4-18 4.3.6 ASUS T.Probe ............................................................... 4-20 4.4 ASUS Unique Overclocking Utili...
Page 8 - Notices; Federal Communications Commission Statement; may cause undesired operation.; Canadian Department of Communications Statement; REACH
viii Notices Federal Communications Commission Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:• This device may not cause harmful interference, and• This device must accept any interference received including interference that may c...
Page 9 - Safety information; Electrical safety; DO NOT
ix Safety information Electrical safety • To prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating the system. • When adding or removing devices to or from the system, ensure that the power cables for the devices are unplugged before the signal cabl...
Page 10 - Where to find more information; About this guide; How this guide is organized; This chapter describes how to install and configure multiple ATI
x Where to find more information Refer to the following sources for additional information and for product and software updates. 1. ASUS websites The ASUS website provides updated information on ASUS hardware and software products. Refer to the ASUS contact information. 2. Optional documentation You...
Page 11 - NOTE; Conventions used in this guide; Bold text; Used to emphasize a word or a phrase.; Command
xi DANGER/WARNING: Information to prevent injury to yourself when trying to complete a task. CAUTION: Information to prevent damage to the components when trying to complete a task. NOTE : Tips and additional information to help you complete a task. IMPORTANT : Instructions that you MUST follow to c...
Page 12 - High Definition Audio
xii P7P55 WS Supercomputer specifications summary CPU Quad Core intel Xeon 3400 series Server Processor Quad Core intel Core i7-800 series Desktop Processor Quad Core intel Core i5-700 series Desktop Processor Dual Core 32nm CPU design Ready Chipset Intel ® P55 Express Chipset/ Nvidia NF200*1 Memory...
Page 13 - P7P55 WS Supercomputer
xiii USB 14 x USB 2.0/1.1 ports ASUS Special Features ASUS Hybrid OS - Express Gate 16+3 power phase TurboV EVO ASUS Exclusive Features - MemOK! - ASUS EPU ASUS Quiet Thermal Solution - ASUS Fanless Design: Heatpipe - ASUS Fanless Design: Stack Cool 2 - ASUS Fan Xpert ASUS Crystal Sound - ASUS Noise...
Page 15 - This chapter describes the motherboard
1 Chapter 1: Product introduction This chapter describes the motherboard features and the new technologies it supports.
Page 16 - Chapter summary
ASUS P7P55 WS Supercomputer Chapter summary 1 1.1 Welcome! ...................................................................................... 1-1 1.2 Package contents ......................................................................... 1-1 1.3 Special features .................................
Page 17 - Package contents
ASUS P7P55 WS Supercomputer 1-1 1.1 Welcome! Thank you for buying an ASUS P7P55 WS Supercomputer motherboard!The motherboard delivers a host of new features and latest technologies, making it another standout in the long line of ASUS quality motherboards!Before you start installing the motherboard, ...
Page 18 - Special features; Product highlights; Green ASUS; consumers’ health while minimizing the impact on the environment.; Lynnfield processors in LGA1156; Intel; Double Speed Double Bandwidth; ASUS Xtreme Design—Hybrid Processor; TurboV EVO
1-2 Chapter 1: Product Introduction 1.3 Special features 1.3.1 Product highlights Green ASUS This motherboard and its packaging comply with the European Union’s Restriction on the use of Hazardous Substances (RoHS). This is in line with the ASUS vision of creating environment-friendly and recyclable...
Page 19 - Auto Tuning; Auto System Level Up; ASUS Hybrid Phase; Leading Active Cooling Technology; 6+3 Phase Power Design; Performance; The groundbreaking 16+3 phase VRM design is brought to the ASUS; ASUS Hybrid OS; Express Gate; Internet and key applications before entering the Windows; ASUS Exclusive Features
ASUS P7P55 WS Supercomputer 1-3 Auto Tuning Auto System Level Up Auto Tuning is an intelligent tool that automates overclocking to achieve a total system level up. This tool also provides stability testing. Even O.C. beginners can achieve extreme yet stable overclocking results with Auto Tuning! 1.3...
Page 20 - ASUS EPU; System Level Energy Saving; ASUS Quiet Thermal Solution; ASUS Fanless Design—Heat-pipe solution; Stack Cool 2; ASUS Crystal Sound
1-4 Chapter 1: Product Introduction ASUS EPU System Level Energy Saving The new ASUS EPU—the world’s first power saving engine, has been upgraded to a new 6 engine version, which provides total system power savings by detecting current PC loadings and intelligently moderating power in real-time. Wit...
Page 21 - audio stream while recording.; ASUS EZ DIY; components, update the BIOS or back up your favorite settings.; ASUS Onboard Switch; design speed up and simplify the DIY process!; ASUS CrashFree BIOS 3; from a USB flash disk containing the BIOS file.
ASUS P7P55 WS Supercomputer 1-5 ASUS Noise FilterEliminate background noise while recording This feature detects repetitive and stationary noises like computer fans, air conditioners, and other background noises then eliminates it in the incoming audio stream while recording. DTSDTS Surround Sensati...
Page 22 - panel cables in one easy step with one complete module. This unique; Simply update BIOS from a USB flash drive before entering the OS; or using an OS�based flash utility. Refer to page 3�4 for details.; Conveniently restore or load multiple BIOS settings; overclocking settings.; ASUS MyLogo2TM; a more colorful and vivid image on your screen.; ASUS Multi-language BIOS
1-6 Chapter 1: Product Introduction ASUS Q-ConnectorMake connection quick and accurate! The ASUS Q-Connector allows you to connect or disconnect chassis front panel cables in one easy step with one complete module. This unique module eliminates the trouble of plugging in one cable at a time, making ...
Page 23 - This chapter lists the hardware setup
2 Chapter 2: Hardware information This chapter lists the hardware setup procedures that you have to perform when installing system components. It includes description of the jumpers and connectors on the motherboard.
Page 25 - Before you proceed; or change any motherboard settings.
2.1 Before you proceed Take note of the following precautions before you install motherboard components or change any motherboard settings. • Unplug the power cord from the wall socket before touching any component. • Use a grounded wrist strap or touch a safely grounded object or a metal object, su...
Page 26 - Motherboard overview; Motherboard layout
2.2 Motherboard overview 2.2.1 Motherboard layout 2-2 Chapter 2: Hardware information
Page 27 - Layout contents; Page
2.2.2 Layout contents Connectors/Jumpers/Switches/Slots Page 1. ATX power connectors (24-pin EATXPWR, 8-pin EATX12V) 2-31 2. LGA1156 CPU Socket 2-5 3. CPU / IMC / DRAM overvoltage setting switches (OV_DRAM; OV_IMC; OV_CPU) 2-35 4. DDR3 DIMM slots 2-11 5. Serial port connector (10-1 pin COM1) 2-27 6....
Page 28 - Placement direction; chassis as indicated in the image below.; Screw holes
DO NOT overtighten the screws! Doing so can damage the motherboard. 2.2.3 Placement direction When installing the motherboard, ensure that you place it into the chassis in the correct orientation. The edge with external ports goes to the rear part of the chassis as indicated in the image below. 2.2....
Page 30 - Installing the CPU; Locate the CPU socket on the motherboard.; Press the load lever with your; Lift the load lever in the direction
2.3.1 Installing the CPU To install a CPU: 1. Locate the CPU socket on the motherboard. To prevent damage to the socket pins, do not remove the PnP cap unless you are installing a CPU. 2. Press the load lever with your thumb (A), and then move it to the right (B) until it is released from the retent...
Page 31 - and then fit the socket alignment
4. Remove the PnP cap from the CPU socket. The CPU fits in only one correct orientation. DO NOT force the CPU into the socket to prevent bending the connectors on the socket and damaging the CPU! 5. Position the CPU over the socket, ensuring that the gold triangle is on the bottom-left corner of the...
Page 33 - Installing the CPU heatsink and fan
Orient the heatsink and fan assembly such that the CPU fan cable is closest to the CPU fan connector. To install the CPU heatsink and fan: 1. Place the heatsink on top of the installed CPU, ensuring that the four fasteners match the holes on the motherboard. 2. Push down two fasteners at a time in a...
Page 34 - Uninstalling the CPU heatsink and fan
3. Connect the CPU fan cable to the connector on the motherboard labeled CPU_FAN. DO NOT forget to connect the CPU fan connector! Hardware monitoring errors can occur if you fail to plug this connector. 2.3.3 Uninstalling the CPU heatsink and fan To uninstall the CPU heatsink and fan: 1. Disconnect ...
Page 35 - System memory; Overview; The figure illustrates the location of the DDR3 DIMM sockets:; Recommended memory configurations
2.4 System memory 2.4.1 Overview The motherboard comes with four Double Data Rate 3 (DDR3) Dual Inline Memory Modules (DIMM) sockets.A DDR3 module has the same physical dimensions as a DDR2 DIMM but is notched differently to prevent installation on a DDR2 DIMM socket. DDR3 modules are developed for ...
Page 41 - Removing a DIMM; Installing a DIMM
2.4.4 Removing a DIMM Follow these steps to remove a DIMM. 1. Press the retaining clip outward to unlock the DIMM. 2. Remove the DIMM from the socket. Support the DIMM lightly with your fingers when pressing the retaining clips. The DIMM might get damaged when it flips out with extra force. 2.4.3 In...
Page 42 - Expansion slots; describe the slots and the expansion cards that they support.; Installing an expansion card; To install an expansion card:; Configuring an expansion card; Chapter 3 for information on BIOS setup.
2.5 Expansion slots In the future, you may need to install expansion cards. The following sub-sections describe the slots and the expansion cards that they support. 2.5.1 Installing an expansion card To install an expansion card: 1. Before installing the expansion card, read the documentation that c...
Page 43 - Interrupt assignments; Standard interrupt assignments; IRQ; IRQ assignments for this motherboard; PCI slot
2.5.3 Interrupt assignments Standard interrupt assignments * These IRQs are usually available for PCI devices. IRQ Priority Standard function 0 1 System Timer 1 2 Keyboard Controller 2 – Redirect to IRQ#9 4 12 Communications Port (COM1)* 5 13 IRQ Holder for PCI Steering* 6 14 Reserved 7 15 Reserved ...
Page 44 - PCI Express x1 slot; cards that comply with the PCI Express specifications.
PCI Express 2.0 x16_1 slot (x8 or x16 link) PCI slot PCI Express x1 slot PCI Express 2.0 x16_2 slot (x8 link) PCI Express 2.0 x16_3 slot (x4 link) PCI Express 2.0 x16_4 slot (x8 or x16 link) PCI Express 2.0 x16_5 slot (x8 link) • When PCIe 2.0 x16_2 and PCIe 2.0 x16_5 slots are occupied, PCIe 2.0 x1...
Page 45 - Jumper
2.6 Jumper Clear RTC RAM (3-pin CLRTC) This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in CMOS, which include system s...
Page 46 - Connectors; Rear panel connectors
2.7 Connectors 2.7.1 Rear panel connectors Rear panel connectors 1. PS/2 mouse port (green) 7. USB 2.0 ports 13 and 14 2. Coaxial S/PDIF Out port 8. Optical S/PDIF Out port 3. LAN (RJ-45) port** 9. USB 2.0 ports 5 and 6 4. IEEE 1394a port 10. USB 2.0 ports 3 and 4 5. LAN (RJ-45) port** 11. USB 2.0 p...
Page 47 - Audio I/O connections; Connect to Headphone and Mic; Port
** LAN port LED indications Activity/Link Speed LED Description OFF OFF Soft-off Mode Yellow Blinking OFF During Power ON/OFF Yellow Blinking ORANGE 100 Mbps connection Yellow Blinking GREEN 1 Gbps connection 2.7.2 Audio I/O connections Audio I/O ports Connect to Headphone and Mic *** Audio 2, 4, 6,...
Page 50 - Internal connectors; and 1� configuration with the Intel; Configure SATA as
2.7.3 Internal connectors 1. Serial ATA connectors (7-pin SATA 1-6 [blue]) These connectors are for the Serial ATA signal cables for Serial ATA hard disk drives and optical disc drives.If you installed Serial ATA hard disk drives, you can create a RAID 0, 1, 5, and 1� configuration with the Intel ® ...
Page 51 - specification that supports up to 48� Mbps connection speed.; of the system chassis.
2. USB connectors (10-1 pin USB78, USB1112; A-Type USB9, USB10) USB connectors (10-1 pin USB78, USB1112; A-Type USB9, USB10) These connectors are for USB 2.0 ports. Connect the USB module cables to connectors USB78 and 1112, then install the modules to a slot opening at the back of the system chassi...
Page 53 - of the front panel audio I/O module cable to this connector.; Front Panel Type
7. Front panel audio connector (10-1 pin AAFP) This connector is for a chassis-mounted front panel audio I/O module that supports either HD Audio or legacy AC`97 audio standard. Connect one end of the front panel audio I/O module cable to this connector. • We recommend that you connect a high�defini...
Page 57 - definitions, and then match them; enabled. The figure shows the Q�
12. ASUS Q-Connector (system panel) Use the ASUS Q-Connector to connect/disconnect the chassis front panel cables. To install the ASUS Q-Connector:1. Connect the front panel cables to the ASUS Q-Connector. Refer to the labels on the Q- Connector to know the detailed pin definitions, and then match t...
Page 58 - Onboard switches; to enhance system performance.
2.7.4 Onboard switches Onboard switches allow you to fine�tune performance when working on a bare or open-case system. This is ideal for overclockers who continually change settings to enhance system performance. 1. MemOK! switch Installing DIMMs that are incompaible with the motherboard may cause s...
Page 59 - following information before you change the switch settings.
2. CPU / IMC / DRAM overvoltage setting switches (OV_DRAM, OV_IMC, OV_CPU) These switches allow you to enable or disable the advanced CPU, Integrated Memory Controller (IMC), and DRAM overvoltage settings in BIOS. Read the following information before you change the switch settings. • Before you cha...
Page 60 - Onboard LEDs; problem within seconds.; Setting Configuration; Standby power LED; shows the location of the onboard LED.
2.8 Onboard LEDs 1. POST State LEDs POST State LEDs check key components (CPU, DRAM, VGA card, and HDD) in sequence during motherboard booting process. If an error is found, the LED next to the error device will continue lighting until the problem is solved. This user-friendly design provides an int...
Page 61 - b. External SCSI devices (starting with the last device on the chain); BIOS Beep; instructions in Chapter 3.
2.9 Starting up for the first time 1. After making all the connections, replace the system case cover. 2. Be sure that all switches are off.3. Connect the power cord to the power connector at the back of the system chassis. 4. Connect the power cord to a power outlet that is equipped with a surge pr...
Page 62 - Turning off the computer; Start; Using the dual function power switch
2.10 Turning off the computer 2.10.1 Using the OS shut down function If you are using Windows ® Vista™: 1. Click the Start button then select Shut Down . 2. The power supply should turn off after Windows ® shuts down. If you are using Windows ® XP: 1. Click the Start button then select Turn Off Comp...
Page 63 - This chapter tells how to change the
3 BIOS setup This chapter tells how to change the system settings through the BIOS Setup menus. Detailed descriptions of the BIOS parameters are also provided.
Page 64 - Extreme Tweaker menu
Chapter summary 3 ASUS P7P55 WS Supercomputer 3.1 Managing and updating your BIOS ............................................ 3-1 3.2 BIOS setup program .................................................................... 3-6 3.3 Main menu ..............................................................
Page 65 - Managing and updating your BIOS; ASUS Update; Installing ASUS Update; ASUS Update utility; Save the current BIOS file
ASUS P7P55 WS Supercomputer 3-1 3.1 Managing and updating your BIOS The following utilities allow you to manage and update the motherboard Basic Input/Output System (BIOS) setup. 1. ASUS Update (Updates the BIOS in Windows ® environment.) 2. ASUS EZ Flash 2 (Updates the BIOS using a USB flash disk.)...
Page 66 - you to avoid network traffic, or; Auto Select; Updating the BIOS through the Internet
3-2 Chapter 3: BIOS setup Quit all Windows ® applications before you update the BIOS using this utility. 3. Select the ASUS FTP site nearest you to avoid network traffic, or click Auto Select . Click Next . Updating the BIOS through the Internet To update the BIOS through the Internet: 1. Launch the...
Page 67 - Updating the BIOS through a BIOS file; To update the BIOS through a BIOS file:; Locate the BIOS file from the Open
ASUS P7P55 WS Supercomputer 3-3 Updating the BIOS through a BIOS file To update the BIOS through a BIOS file: 1. Launch the ASUS Update utility from the Windows ® desktop by clicking Start > Programs > ASUS > ASUSUpdate > ASUSUpdate . The ASUS Update main window appears. 2. Select Update...
Page 68 - ASUS EZ Flash 2 utility; To update the BIOS using EZ Flash 2; Tools; menu to select; EZ Flash; Press to switch between drives until the correct BIOS file is; Load Setup Defaults; Exit
3-4 Chapter 3: BIOS setup 3.1.2 ASUS EZ Flash 2 utility The ASUS EZ Flash 2 feature allows you to update the BIOS without having to use a DOS-based utility. The EZ Flash 2 utility is built in the BIOS chip so it is accessible by pressing <Alt> + <F2> during the Power-On Self Tests (POST)...
Page 69 - BUPDATER utility; Updating the BIOS file; USB
ASUS P7P55 WS Supercomputer 3-5 3.1.3 BUPDATER utility The succeeding BIOS screens are for reference only. The actual BIOS screen displays may not be the same as shown. The BUPDATER utility allows you to update the BIOS file in DOS environment using a bootable USB flash disk drive with the updated B...
Page 70 - ASUS CrashFree BIOS 3 utility; USB flash drive that contains the BIOS file.; Recovering the BIOS; drive containing the BIOS file to the USB port.; completed. Reboot the system from the hard disk drive.
3-6 Chapter 3: BIOS setup 3.1.4 ASUS CrashFree BIOS 3 utility The ASUS CrashFree BIOS 3 utility is an auto recovery tool that allows you to restore the BIOS file when it fails or gets corrupted during the updating process. You can restore a corrupted BIOS file using the motherboard support DVD or a ...
Page 71 - BIOS setup program; using the provided utility described in section; Managing and updating your; the first two failed.
ASUS P7P55 WS Supercomputer 3-7 3.2 BIOS setup program This motherboard supports two programmable firmware chips that you can update using the provided utility described in section 3.1 Managing and updating your BIOS . Use the BIOS Setup program when you are installing a motherboard, reconfiguring y...
Page 72 - Menu bar; The menu bar on top of the screen has the following main items:
3-8 Chapter 3: BIOS setup 3.2.3 Navigation keys At the bottom right corner of a menu screen are the navigation keys for that particular menu. Use the navigation keys to select items in the menu and change the settings. 3.2.1 BIOS menu screen Some of the navigation keys differ from one screen to anot...
Page 73 - Menu items; respective menu items.; Submenu items; Refer to; A scroll bar appears on the right side; General help
ASUS P7P55 WS Supercomputer 3-9 3.2.4 Menu items The highlighted item on the menu bar displays the specific items for that menu. For example, selecting Main shows the Main menu items.The other items (Advanced, Power, Boot, and Exit) on the menu bar have their respective menu items. 3.2.5 Submenu ite...
Page 74 - Main menu; you an overview of the basic system information.
3-10 Chapter 3: BIOS setup 3.3 Main menu When you enter the BIOS Setup program, the Main menu screen appears, giving you an overview of the basic system information. 3.3.1 System Time [xx:xx:xx] Allows you to set the system time. 3.3.2 System Date [Day xx/xx/xxxx] Allows you to set the system date. ...
Page 75 - Select this option if you are specifically configuring a CD�ROM
ASUS P7P55 WS Supercomputer 3-11 3.3.4 SATA 1-6 While entering Setup, the BIOS automatically detects the presence of IDE/SATA devices. There is a separate submenu for each IDE/SATA device. Select a device item then press <Enter> to display the SATA device information. v02.61 (C)Copyright 1985-...
Page 76 - This makes more efficient use of the PCI bus as fewer transactions
3-12 Chapter 3: BIOS setup Block (Multi-Sector Transfer) M [Auto] Enables or disables data multi-sectors transfers.[Auto] When set to [Auto], the data transfer from and to the device occurs in multiple sectors at a time if the device supports multi-sector transfer feature. [Disabled] When set to [Di...
Page 77 - Storage Configuration
ASUS P7P55 WS Supercomputer 3-13 �.�.5 Storage Configuration The Storage Configuration menu allows you to configure your storage devices. Select an item then press <Enter> to display the submenu. BIOS SETUP UTILITY Main Storage Configuration SATA Configuraton [Enhanced] Configure SATA as [IDE]...
Page 78 - AHCI Configuration; item; from the sub-menu of; SATA Configuration; Allows you to select the type of device connected to the system.; System Information
3-14 Chapter 3: BIOS setup �.�.6 AHCI Configuration This menu is the section for AHCI configuration. It appears only when you set the item Configure SATA as from the sub-menu of SATA Configuration to [AHCI]. BIOS SETUP UTILITY Main AHCI Settings SATA Port1 [Not Detected] SATA Port2 [Not Detected] SA...
Page 79 - Ai Tweaker menu; Ai Tweaker; Scroll down to display the following items:
ASUS P7P55 WS Supercomputer 3-15 3.4 Ai Tweaker menu The Ai Tweaker menu items allow you to configure overclocking�related items. Take caution when changing the settings of the Ai Tweaker menu items. Incorrect field values can cause the system to malfunction. The default values of the following item...
Page 80 - Ai Overclock Tuner
3-16 Chapter 3: BIOS setup 3.4.1 Ai Overclock Tuner [Auto] Allows selection of CPU overclocking options to achieve desired CPU internal frequency. Select either one of the preset overclocking configuration options: Manual Allows you to individually set overclocking parameters. Auto Loads the optimal...
Page 81 - This item appears only if you set the; Ratio CMOS Setting; the PCIE frequency. The values range from 100 to 200.; DRAM Frequency; BCLK Frequency; OC Tuner Utility
ASUS P7P55 WS Supercomputer 3-17 3.4.4 Intel(R) TurboMode Tech [Enabled] This item appears only if you set the Ratio CMOS Setting item to [Auto]. Turbo mode allows processor cores to run faster than marked frequency in specific condition. Configuration options: [Disabled] [Enabled] 3.4.5 Xtreme Phas...
Page 82 - Set an auto-adjustment limit value for OC Tuner Utility.
3-18 Chapter 3: BIOS setup 3.4.9 OC Tuner limit Value [Good Performance] Set an auto-adjustment limit value for OC Tuner Utility. Configuration options: [Good Performance] [Better Performance] 3.4.10 DRAM Timing Control [Auto] The items in this menu allow you to set the DRAM timing control features....
Page 84 - NB Clock Skew
3-20 Chapter 3: BIOS setup 3.4.11 CPU Differential Amplitude [Auto] Different AMP might enhance BCLK overclocking ability. Configuration options: [Auto] [7��mV] [8��mV] [9��mV] [1���mV] 3.4.12 CPU Clock Skew [Auto] Adjusting this item may help enhancing BCLK overclocking ability. You may need to adj...
Page 85 - DRAM overclocking ability.
ASUS P7P55 WS Supercomputer 3-21 3.4.15 DRAM Voltage [Auto] Allows you to set the DRAM voltage. The values range from 1.5V to 2.5V* with a 0.0125V interval. According to Intel CPU spec, DIMMs with voltage requirement over 1.65V may damage the CPU permanently. We recommend you install the DIMMs with ...
Page 86 - Advanced menu; CPU Configuration; automatically detects.
3-22 Chapter 3: BIOS setup 3.5 Advanced menu The Advanced menu items allow you to change the settings for the CPU and other system devices. �.5.1 CPU Configuration The items in this menu show the CPU-related information that the BIOS automatically detects. The items shown in this screen may be diffe...
Page 87 - Prefetcher for tuning performance of the specific application.
ASUS P7P55 WS Supercomputer 3-23 Scroll down to display the following items: v02.61 (C)Copyright 1985-2009, American Megatrends, Inc. CPU TM function [Enabled] Execute-Disable Bit Capability [Enabled] Intel(R) HT Technology [Enabled] Active Processor Cores [All] A20M [Disabled] Intel(R) SpeedStep(TM...
Page 89 - North Bridge Configuration; Onboard Device Configuration; Enables the High Definition Audio Controller.
ASUS P7P55 WS Supercomputer 3-25 �.5.2 North Bridge Configuration The North Bridge Configuration menu allows you to change the advanced chipset settings. BIOS SETUP UTILITY Advanced North Bridge Chipset Configuration IMC Type : Clarksfield Memory Remap Feature [Enabled] PCI MMIO Allocation: 4GB To 3...
Page 90 - Enables the onboard 1394 Controller.
3-26 Chapter 3: BIOS setup Realtek LAN1/2 [Enabled] [Enabled] Enables Realtek LAN Controller 1/2. [Disabled] Disables Realtek LAN Controller 1/2. LAN Boot ROM [Disabled] This item appears only when you enable the previous item(s).[Disabled] Disables Realtek LAN Boot ROM.[Enabled] Enables Realtek LAN...
Page 91 - USB Devices Enabled; USB Functions; USB Configuration; item then press to display the configuration options.
ASUS P7P55 WS Supercomputer 3-27 The USB Devices Enabled item shows the auto-detected values. If no USB device is detected, the item shows None. USB Support [Enabled] [Enabled] Enables the USB Host Controllers. [Disabled] Disables the controllers. The following items appear only when you set USB Fun...
Page 92 - PCIPnP; When set to [Yes] and if you install a Plug and Play operating; Disables the Intel Virtualization Technology for Directed I/O.
3-28 Chapter 3: BIOS setup 3.5.5 PCIPnP The PCIPnP menu items allow you to change the advanced settings for PCI/PnP devices. Take caution when changing the settings of the PCI PnP menu items. Incorrect field values can cause the system to malfunction. Plug And Play O/S [No] [Yes] When set to [Yes] a...
Page 93 - Power menu; configuration options.
ASUS P7P55 WS Supercomputer 3-29 3.6 Power menu The Power menu items allow you to change the settings for the Advanced Power Management (APM). Select an item then press <Enter> to display the configuration options. 3.6.1 Suspend Mode [Auto] Allows you to select the Advanced Configuration and P...
Page 94 - Configuration and Power Interface (ACPI) support in the Advanced
3-30 Chapter 3: BIOS setup �.6.6 APM Configuration Restore On AC Power Loss [Power Off] [Power Off] The system goes into off state after an AC power loss. [Power On] The system goes into on state after an AC power loss. [Last State] The system goes into either off or on state, whatever the system st...
Page 95 - System Time; will become user�configurable with set values.; Sets specific keys on the PS/2 keyboard to turn on the system.
ASUS P7P55 WS Supercomputer 3-31 Power On By RTC Alarm [Disabled] [Disabled] Disables RTC to generate a wake event. [Enabled] When set to [Enabled], the items RTC Alarm Date (Days) / System Time will become user�configurable with set values. Power On By External Modems [Disabled] [Disabled] Disables...
Page 96 - Hardware Monitor; connected to the motherboard, the field shows; Ignored
3-32 Chapter 3: BIOS setup 3.6.7 Hardware Monitor CPU/MB Temperature [xxx�C/xxx�F] [xxx�C/xxx�F] The onboard hardware monitor automatically detects and displays the CPU and motherboard temperatures. Select Ignored if you do not wish to display the detected temperatures. CPU Fan Speed [xxxxRPM] or [I...
Page 97 - Chassis Q-Fan Control
ASUS P7P55 WS Supercomputer 3-33 Chassis Q-Fan Control [Disabled] [Disabled] Disables the Chassis Q-Fan control feature. [Enabled] Enables the Chassis Q-Fan control feature. Chassis Fan Profile [Standard]This item appears only when you enable the Chassis Q-Fan Control feature and allows you to set t...
Page 98 - Boot menu; Boot Device Priority; Hard Disk Drives CDROM Drives; sequence of the hard disk drives or the optical drives.
3-34 Chapter 3: BIOS setup 3.7 Boot menu The Boot menu items allow you to change the system boot options. Select an item then press <Enter> to display the sub-menu. 3.7.1 Boot Device Priority 1st–xxth Boot Device [xxx Drive] These items specify the boot device priority sequence from the availa...
Page 99 - Boot Settings Configuration; Allows you to enable or disable the; Quick Boot; (POST) while booting to decrease the time needed to boot the
ASUS P7P55 WS Supercomputer 3-35 �.7.� Boot Settings Configuration Quick Boot [Enabled] Allows you to enable or disable the Quick Boot function. [Disabled] When set to [Disabled], BIOS performs all the POST items. [Enabled] When set to [Enabled], BIOS skips some power on self tests (POST) while boot...
Page 100 - Change Supervisor Password; Security; an item then press to display the configuration options.; Turn on onboard device LEDs in the order of the device POST
3-36 Chapter 3: BIOS setup Change Supervisor Password Select this item to set or change the supervisor password. The Supervisor Password item on top of the screen shows the default Not Installed. After you set a password, this item shows Installed.To set a Supervisor Password: 1. Select the Change S...
Page 101 - Change User Password; change other security settings.
ASUS P7P55 WS Supercomputer 3-37 User Access Level [Full Access] This item allows you to select the access restriction to the Setup items. Configuration options: [No Access] [View Only] [Limited] [Full Access] [No Access] prevents user access to the Setup utility. [View Only] allows access but does ...
Page 102 - Tools menu; This item allows you to store or load multiple BIOS settings.; Add Your CMOS Profile; save your CMOS settings in the Save to sub-item.; Load CMOS Profiles
3-38 Chapter 3: BIOS setup 3.8 Tools menu The Tools menu items allow you to configure options for special functions. Select an item then press <Enter> to display the sub-menu. v02.61 (C)Copyright 1985-2009, American Megatrends, Inc. ←→ Select Screen ↑↓ Select Item Enter Go to Sub Screen F1 Gen...
Page 103 - AI NET 2
ASUS P7P55 WS Supercomputer 3-39 ASUSTek O.C. Profile Utility V1.34 Restore CMOS A: Note [Enter] Select or Load [Tab] Switch [V] Drive Info [Up/Down/Home/End] Move [B] Backup [Esc] Exit PATH: A:\ BOARD: P7P55 WS SUPERCOMPUTER VER: 0210 DATE: 07/30/2009 BOARD: Unknown VER: Unknown DATE: Unknown Curre...
Page 104 - ASUS EZ Flash 2; to stay at the first screen of Express Gate for user action.
3-40 Chapter 3: BIOS setup 3.8.3 ASUS EZ Flash 2 Allows you to run ASUS EZ Flash 2. When you press <Enter>, a confirmation message appears. Use the left/right arrow key to select between [Yes] or [No], then press <Enter> to confirm your choice. For more details, refer to section 3.1.2 AS...
Page 105 - Allows you to clear Express Gate’s user data.
ASUS P7P55 WS Supercomputer 3-41 Reset User Data [No] Allows you to clear Express Gate’s user data. [Reset] When setting this item to [Reset], ensure that you save the setting to the BIOS so that the user data will be cleared the next time you enter the Express Gate. User data includes the Express G...
Page 106 - Exit menu; BIOS items, and save or discard your changes to the BIOS items.; Exit & Discard Changes; Time, and Password, the BIOS asks for a confirmation before exiting.; Discard Changes; YES to discard any changes and load the previously saved values.
3-42 Chapter 3: BIOS setup 3.9 Exit menu The Exit menu items allow you to load the optimal or failsafe default values for the BIOS items, and save or discard your changes to the BIOS items. Pressing <Esc> does not immediately exit this menu. Select one of the options from this menu or <F10&...
Page 107 - This chapter describes the contents of
4 Software support This chapter describes the contents of the support DVD that comes with the motherboard package and the software.
Page 109 - Installing an operating system; features of your hardware.; Support DVD information; Running the support DVD; Drivers menu if Autorun is enabled in your computer.
ASUS P7P55 WS Supercomputer 4-1 If Autorun is NOT enabled in your computer, browse the contents of the support DVD to locate the file ASSETUP.EXE from the BIN folder. Double�click the ASSETUP.EXE to run the DVD. 4.1 Installing an operating system This motherboard supports Windows XP/Vista/Win7 opera...
Page 110 - Drivers menu
4-2 Chapter 4: Software support 4.2.2 Drivers menu The drivers menu shows the available device drivers if the system detects installed devices. Install the necessary drivers to activate the devices. Norton Internet Security 2009 Installs NIS 2009. Intel Chipset Driver Installs the Intel ® chipset dr...
Page 111 - Utilities menu
ASUS P7P55 WS Supercomputer 4-3 4.2.3 Utilities menu The Utilities menu shows the applications and other software that the motherboard supports. ASUS Update The ASUS Update utility allows you to update the motherboard BIOS in Windows ® environment. This utility requires an Internet connection either...
Page 112 - Make disk menu; Intel AHCI/RAID Driver; Allows you to create an AHCI/RAID Driver disk.; Manual menu; open the folder of the user manual.
4-4 Chapter 4: Software support 4.2.4 Make disk menu The Make disk menu contains items to create the Intel RAID driver disk. Intel AHCI/RAID Driver Allows you to create an AHCI/RAID Driver disk. 4.2.5 Manual menu The Manuals menu contains a list of supplementary user manuals. Click an item to open t...
Page 113 - ASUS Contact information; this information on the inside front cover of this user guide.
ASUS P7P55 WS Supercomputer 4-5 4.2.6 ASUS Contact information Click the Contact tab to display the ASUS contact information. You can also find this information on the inside front cover of this user guide.
Page 114 - Other information; specified information.; Motherboard Info; Displays the general specifications of the motherboard.; Browse this DVD; Displays the support DVD contents in graphical format.
4-6 Chapter 4: Software support 4.2.7 Other information The icons on the top right corner of the screen give additional information on the motherboard and the contents of the support DVD. Click an icon to display the specified information. Motherboard Info Displays the general specifications of the ...
Page 115 - Filelist
ASUS P7P55 WS Supercomputer 4-7 Filelist Displays the contents of the support DVD and a brief description of each in text format.
Page 116 - ASUS PC Probe II; Installing PC Probe II; Utilities; Launching PC Probe II; Start > All Programs; Using PC Probe II; the utility configuration. By; Software information
4-8 Chapter 4: Software support 4.3.1 ASUS PC Probe II PC Probe II is a utility that monitors the computer’s vital components, and detects and alerts you of any problem with these components. PC Probe II senses fan rotations, CPU temperature, and system voltages, among others. Because PC Probe II is...
Page 117 - Button; Preferences; You can customize the application using
ASUS P7P55 WS Supercomputer 4-9 Button Function Opens the Configuration window Opens the Report windowOpens the Desktop Management Interface windowOpens the Peripheral Component Interconnect windowOpens the Windows Management Instrumentation windowOpens the hard disk drive, memory, CPU usage windowS...
Page 118 - another position from the list box. Click OK when finished.; Hardware monitor panels; using the Config window.
4-10 Chapter 4: Software support Changing the monitor panels position To change the position of the monitor panels in the desktop, click the arrow down button of the Scheme options, then select another position from the list box. Click OK when finished. Moving the monitor panels All monitor panels m...
Page 119 - WMI browser
ASUS P7P55 WS Supercomputer 4-11 Monitoring sensor alert The monitor panel turns red when a component value exceeds or is lower than the threshold value. Refer to the illustrations below. Large display Small display WMI browser Click to display the WMI (Windows Management Instrumentation) browser. T...
Page 120 - PCI browser
4-12 Chapter 4: Software support PCI browser Click to display the PCI (Peripheral Component Interconnect) browser. This browser provides information on the PCI devices installed on your system. Click the plus sign (+) before the PCI Information item to display available information. Usage The Usage ...
Page 121 - Configuring PC Probe II
ASUS P7P55 WS Supercomputer 4-13 Memory usage The Memory tab shows both used and available physical memory. The pie chart at the bottom of the window represents the used (blue) and the available physical memory. Configuring PC Probe II Click to view and adjust the sensor threshold values. The Config...
Page 122 - Installing AI Suite
4-14 Chapter 4: Software support 4.3.2 ASUS AI Suite ASUS AI Suite allows you to launch several ASUS utilities easily. Installing AI Suite To install AI Suite on your computer: 1. Place the support DVD to the optical drive. The Drivers installation tab appears if your computer has an enabled Autorun...
Page 123 - Other feature buttons
ASUS P7P55 WS Supercomputer 4-15 Other feature buttons Click on right corner of the main window to open the monitor window. Click on right corner of the expanded window to switch the temperature from degrees Centigrade to degrees Fahrenheit. Displays the CPU/ system temperature, CPU/memory/PCIE volt...
Page 124 - ASUS Fan Xpert; Launching Fan Xpert; AI Suite; Using Fan Xpert; Fan profiles; Fan Xpert; minimizes fan speed for quiet fan operation.
4-16 Chapter 4: Software support 4.3.3 ASUS Fan Xpert Asus Fan Xpert allows you to adjust both the CPU and chassis fan speeds according to different ambient temperatures and your PC’s system loading. The various fan profiles offer flexible controls of fan speeds to achieve a quiet and cool system en...
Page 125 - Launching 6 Engine; The first time you launch 6 Engine,; Engine main menu
ASUS P7P55 WS Supercomputer 4-17 4.3.4 ASUS EPU-6 Engine ASUS EPU�6 Engine is an energy�efficient tool that satisfies different computing needs. This utility provides four modes that you can select to enhance system performance or save power:• Turbo Mode • High Performance Mode Selecting Auto Mode w...
Page 126 - ASUS Express Gate; Notices about ASUS Express Gate; motherboard
4-18 Chapter 4: Software support 4.3.5 ASUS Express Gate ASUS Express Gate is an instant-on environment that gives you quick access to the Internet, Skype, and viewing your pictures. Within a few seconds of powering on your computer, you will be at the Express Gate menu where you can start the web b...
Page 127 - The First Screen
ASUS P7P55 WS Supercomputer 4-19 • To enter the motherboard BIOS setup program, click Exit on the Express Gate First Screen, and then press the <Del> key during POST. • See the software manual in the bundled motherboard support DVD or click in the Express Gate environment for detailed software...
Page 128 - Installing ASUS T.Probe; Drivers; Before using ASUS T.Probe; You have to configure BIOS settings before using ASUS T.Probe.; Advanced; notification area
4-20 Chapter 4: Software support 4.3.6 ASUS T.Probe The onboard T.Probe microchip detects and balances power phase loading and temperature in real�time. This feature optimizes the power phase functions, allowing components to run at lower temperatures and extending their lifespan. You can monitor th...
Page 129 - ASUS Unique Overclocking Utility—; If the TurboV EVO is correctly installed, you will find the; TurboV; icon on the Windows notification area. Click on the icon to; Using ASUS TurboV; Auto; Save Profile
ASUS P7P55 WS Supercomputer 4-21 4.4 ASUS Unique Overclocking Utility— TurboV EVO ASUS TurboV EVO introduces TurboV and Turbo Key —two powerful tools that allow you to overclock your system effectively. Install ASUS TurboV EVO from the support DVD that came with the motherboard package. If the Turbo...
Page 130 - CPU Ratio; Using ASUS TurboV Auto Tuning Mode; first to configure more; Yes
4-22 Chapter 4: Software support • Set the CPU Ratio Setting item in BIOS to [Auto] before using the CPU Ratio function in TurboV. See Chapter 3 for details. • For advanced overclock ability, adjust first the BIOS items, and then proceed more detailed adjustments using TurboV. 4.4.2 Using ASUS Turbo...
Page 131 - Stop; Using ASUS Turbo Key; Turbo Key
ASUS P7P55 WS Supercomputer 4-23 • After pressing Start, the system starts performance tuning and may reboot 2 to 3 times. Please do not operate or manually restart the computer during the tuning process. • After restarting OS, a message appears indicating the current overclocking result. You can cl...
Page 132 - Configuring ASUS Turbo Key; Turbo Key Profile; to save Turbo Key settings.
4-24 Chapter 4: Software support Configuring ASUS Turbo Key 1. Select your desired hotkey combination.2. You can decide the performance boost level by selecting Turbo Key Profile . You can also load personal profiles saved in the ASUS TurboV utility. 3. Choose whether to show Turbo Key OSD and statu...
Page 133 - P55 chipset that allows you to configure; driver disk; optimizes two identical hard disk drives to read and write
ASUS P7P55 WS Supercomputer 4-25 4.5 RAID configurations The motherboard comes with the Intel ® P55 chipset that allows you to configure Serial ATA hard disk drives as RAID sets. The motherboard supports the following RAID configurations: RAID �, RAID 1, RAID 1� and RAID 5. • You must install Window...
Page 134 - To enter the Intel; Setting the RAID item in BIOS; Main; Installing Serial ATA hard disks; To install the SATA hard disks for a RAID configuration:
4-26 Chapter 4: Software support 4.5.4 Intel ® Matrix Storage Manager option ROM utility To enter the Intel ® Matrix Storage Manager option ROM utility 1. Turn on the system.2. During POST, press <Ctrl> + <I> to display the utility main menu. Intel(R) Matrix Storage Manager option ROM v8...
Page 135 - the menus and select the menu options.; Creating a RAID volume; Create RAID Volume; and press; RAID Level; item is selected, press the up/down arrow key to; Disks; item is selected, press to select the hard disk drives; SELECT DISKS
ASUS P7P55 WS Supercomputer 4-27 The navigation keys at the bottom of the screen allow you to move through the menus and select the menu options. The RAID BIOS setup screens shown in this section are for reference only and may not exactly match the items on your screen. The utility supports maximum ...
Page 136 - Capacity; CREATE VOLUME
4-28 Chapter 4: Software support 5. Use the up/down arrow key to select a drive, and then press <Space> to select. A small triangle marks the selected drive. Press <Enter> after completing your selection. 6. Use the up/down arrow key to select the stripe size for the RAID array (for RAID...
Page 137 - Deleting a RAID set; Delete RAID Volume; Exiting the Intel; following warning message appears.; DELETE VOLUME
ASUS P7P55 WS Supercomputer 4-29 Deleting a RAID set Take caution when deleting a RAID set. You will lose all data on the hard disk drives when you delete a RAID set. To delete a RAID set1. From the utility main menu, select 2. Delete RAID Volume and press <Enter>. The following screen appears...
Page 138 - Creating a RAID driver disk; XP; The motherboard does not provide a floppy drive connector; Creating a RAID driver disk without entering the OS; Creating a RAID driver disk in Windows; To create a RAID driver disk in Windows; Make Disk; menu, and then click; to create
4-30 Chapter 4: Software support 4.6 Creating a RAID driver disk A floppy disk with the RAID driver is required when installing Windows ® XP operating system on a hard disk drive that is included in a RAID set. For Windows ® Vista or later operating systems, use either a floppy disk or a USB flash d...
Page 139 - Installing the RAID driver during Windows; XP may not recognize the USB floppy disk drive
ASUS P7P55 WS Supercomputer 4-31 4.6.3 Installing the RAID driver during Windows ® OS installation To install the RAID driver for Windows ® XP 1. During the OS installation, the system prompts you to press the F6 key to install third-party SCSI or RAID driver. 2. Press <F6>, and then insert th...
Page 140 - Details; Browse the contents of the
4-32 Chapter 4: Software support 4. Click Details tab. The Vendor ID (VID) and Product ID (PID) are displayed. 5. Browse the contents of the RAID driver disk to locate the file txtsetup.oem . 6. Double�click the file. A window appears, allowing you to select the program for opening the oem file. 7. ...
Page 141 - and
ASUS P7P55 WS Supercomputer 4-33 8. Find the [HardwareIds.scsi.iaAHCI_PCH] and [HardwareIds.scsi.iastor_8R9R10RDOPCH] sections in the txtsetup.oem file. 9. Type the following line to the bottom of the two sections: id = “USB\VID_xxxx&PID_xxxx”, “usbstor” 1�. Save and exit the file. [HardwareIds....
Page 143 - This chapter describes how to install and
5 Multiple GPU technology support This chapter describes how to install and configure multiple ATI ® CrossFireX™ and NVIDIA ® SLI™ graphics cards.
Page 145 - Requirements; Control Panel > Programs and Features
ASUS P7P55 WS SuperComputer 5-1 5.1 ATI ® CrossFireX™ technology The motherboard supports the ATI ® CrossFireX™ technology that allows you to install multi-graphics processing units (GPU) graphics cards. Follow the installation procedures in this section. 5.1.1 Requirements • In CrossFireX mode, you...
Page 146 - Align and firmly insert the; Installing CrossFireX graphics cards
5-2 Chapter 5: Multiple GPU technology support 5. Connect two independent auxiliary power sources from the power supply to the two graphics cards separately. 6. Connect a VGA or a DVI cable to the graphics card. 4. Align and firmly insert the CrossFireX bridge connector to the goldfingers on each gr...
Page 147 - Installing the device drivers; Launching the ATI Catalyst Control Center; the Windows notification area and select
ASUS P7P55 WS SuperComputer 5-3 5.1.4 Installing the device drivers Refer to the documentation that came with your graphics card package to install the device drivers. Ensure that your PCI Express graphics card driver supports the ATI ® CrossFireX™ technology. Download the latest driver from the AMD...
Page 148 - Enabling Dual CrossFireX settings; In the Catalyst Control Center; CrossFireX > Configure; select the graphics card to act as; Enable CrossFireX; to
5-4 Chapter 5: Multiple GPU technology support Enabling Dual CrossFireX settings 1. In the Catalyst Control Center window, click Graphics Settings > CrossFireX > Configure . 2. From the Graphics Adapter list, select the graphics card to act as the display GPU. 3. Select Enable CrossFireX . 4. ...
Page 149 - NVIDIA; The motherboard supports the NVIDIA; that are NVIDIA
ASUS P7P55 WS SuperComputer 5-5 5.2 NVIDIA ® SLI™ technology The motherboard supports the NVIDIA ® SLI™ (Scalable Link Interface) technology that allows you to install multi-graphics processing units (GPU) graphics cards. Follow the installation procedures in this section. 5.2.1 Requirements • In Du...
Page 150 - Installing two SLI-ready graphics cards; Align and firmly insert the SLI bridge
5-6 Chapter 5: Multiple GPU technology support 5.2.2 Installing two SLI-ready graphics cards The following pictures are for reference only. The graphics cards and the motherboard layout may vary with models, but the installation steps remain the same. 1. Prepare two SLI-ready graphics cards. 2. Inse...
Page 151 - Installing three SLI-ready graphics cards; Align and firmly insert the 3�Way SLI
ASUS P7P55 WS SuperComputer 5-7 5.2.3 Installing three SLI-ready graphics cards 1. Prepare three SLI-ready graphics cards. 2. Insert the three graphics card into the PCIEX16 slots. If your motherboard has more than two PCIEX16 slots, refer to Chapter 2 in this user manual for the locations of the PC...
Page 152 - Launching the NVIDIA Control Panel; NVIDIA Control Panel
5-8 Chapter 5: Multiple GPU technology support 5.2.4 Installing the device drivers Refer to the documentation that came with your graphics card package to install the device drivers. 5.2.5 Enabling the NVIDIA ® SLI™ technology After installing your graphics cards and the device drivers, enable the S...
Page 153 - Personalization; select; Display Settings; B3. From the Display Settings dialog box,; Advanced Settings; then click; Start the NVIDIA Control
ASUS P7P55 WS SuperComputer 5-9 B2. From the Personalization window, select Display Settings . B3. From the Display Settings dialog box, click Advanced Settings . B4. Select the NVIDIA GeForce tab, and then click Start the NVIDIA Control Panel .
Page 154 - Enabling Dual SLI settings; Enabling Triple SLI settings; Set SLI Configuration
5-10 Chapter 5: Multiple GPU technology support B5. The NVIDIA Control Panel window appears. Enabling Dual SLI settings From the NVIDIA Control Panel window, select Set SLI Configuration . Click Enable SLI and set the display for viewing SLI rendered content. When done, click Apply . Enabling Triple...
Page 155 - Installing CUDA-ready graphics cards
ASUS P7P55 WS SuperComputer 5-11 5.3 NVIDIA ® CUDA™ technology The motherboard supports the NVIDIA ® CUDA™ technology with one NVIDIA ® Quadro™ graphics card and up to three NVIDIA ® Tesla™ computing processor cards, providing the optimum multi purpose computing performance. Follow the installation ...