Lenovo ThinkPad G41- User Manual

Introduction Important service information Important BIOS and device driver fixes are customer-installable. The BIOS and device drivers are posted on the customer support site http://www.lenovo.com/think/support Advise customers to contact the Customer Support Center at 800-426-7378 if they need ass...

Strategy for replacing a hard disk drive Always try to run a low-level format before replacing a hard disk drive. Attention: The drive startup sequence in the computer you are servicing may have been changed. Be extremely careful during write operations such as copying, saving, or formatting. If you...

Safety notice 2 DANGER Some standby batteries contain a small amount of nickel and cadmium. Do not disassemble a standby battery, recharge it, throw it into fire or water, or short-circuit it. Dispose of the battery as required by local ordinances or regulations. Use only the battery in the appropri...

v After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device that is worn or defective. v Reinstall all covers correctly before returning the machine to the customer. v Fan louvers on the machine help to prevent overheating of internal components. Do not...

Note: If you do not want to create the Predesktop Area, press the N key, and then go to step 8. 5. At the next window, press Enter to continue. v The Predesktop Area is created. The system automatically reboots during this process. v The recovery process copies some files to the Predesktop Area, and...

Both user HDP and master HDP will have been removed. Power management To reduce power consumption, the computer has three power management modes: screen blank, standby, and hibernation. Screen blank mode Screen blank mode has three variants, as follows: 1. If you are using the ACPI operating system ...

Detecting system information with PC-Doctor PC-Doctor can detect the following system information: Hardware Info v System Configuration v Memory Contents v Physical Disk Drives v Logical Disk Drives v VGA Information v IDE Drive Info v PCI Information v PNPISA Info v SMBIOS Info v VESA LCD Info Util...

Power system checkout To verify a symptom, do the following: 1. Power off the computer. 2. Remove the battery pack. 3. Connect the ac adapter. 4. Check that power is supplied when you power on the computer. 5. Power off the computer. 6. Disconnect the ac adapter and install the charged battery pack....

Terminal Voltage (V dc) 1 + 0 to + 12.6 (Li-ion) 5 Ground 3. If the voltage is less than +11.0 V dc, the battery pack has been discharged. Note: Recharging will take at least 3 hours, even if the indicator does not turn on. If the voltage is still less than +11.0 V dc after recharging, replace the b...

Product overview This section presents the following product-unique information: v “Specifications” v “Status indicators” on page 47 v “FRU tests” on page 49 v “Fn key combinations” on page 51 Specifications The following table lists the specifications of the ThinkPad G40, G41 series: Feature Descri...

Status indicators The system status indicators show the status of the computer, as follows: 1 3 2 7 4 5 6 Indicator Meaning 1 Wireless status Green: Wireless is operational. This indicator is on when the Wireless is on and not in suspend mode. Blinking green: Data is being transmitted. Note: The wir...

Fn key combinations The following table shows the function of each combination of Fn with a function key. Key combination Description Fn+F1 Reserved. Fn+F2 Reserved. Fn+F3 Turn off the LCD display, leaving the screen blank. To turn the LCD display on again, press any key or the TrackPoint stick. Fn+...

Symptom-to-FRU index The symptom-to-FRU index in this section lists symptoms and errors and their possible causes. The most likely cause is listed first, in boldface type. Note: Do the FRU replacement or other actions in the sequence shown in the column headed “FRU or action, in sequence.” If replac...

LCD-related symptoms Important The TFT LCD for the notebook computer contains many thin-film transistors (TFTs). A small number of dots that are missing, discolored, or always lighted is characteristic of TFT LCD technology, but excessive pixel problems can cause viewing concerns. The LCD should be ...

Intermittent problems Intermittent system hang problems can be due to a variety of causes that have nothing to do with a hardware defect, such as cosmic radiation, electrostatic discharge, or software errors. FRU replacement should be considered only when a problem recurs. When analyzing an intermit...

FRU replacement notices This section contains notices related to removing and replacing parts. Read this section carefully before replacing any FRU. Screw notices Loose screws can cause a reliability problem. In the ThinkPad computer, this problem is addressed with special nylon-coated screws that h...

1020 Hard disk drive Attention v Do not drop or apply any shock to the hard disk drive. The hard disk drive is sensitive to physical shock. Improper handling can cause damage and permanent loss of data. v Before removing the drive, have the user make a backup copy of all the information on the drive...

3 4 When installing: Make sure that the hard disk connector is firmly attached. Removing and replacing a FRU 68 ThinkPad G40, G41

1040 DIMM For access, remove these FRUs, in order: v “1010 Battery pack” on page 66 v “1030 DIMM door” on page 69 When installing: With the notched end of the DIMM toward the socket, insert the DIMM into the socket, and then press it firmly. Pivot the DIMM until it snaps into place. Make sure that t...

1070 Keyboard For access, remove these FRUs, in order: v “1010 Battery pack” on page 66 1 Step Screw (quantity) Torque 1 M2.5 × 7 mm, Black (2) Nm 0.3 (3.2 kgfcm) (continued) Removing and replacing a FRU ThinkPad G40, G41 73

2010 CPU For access, remove these FRUs, in order: v “1010 Battery pack” on page 66 v “1030 DIMM door” on page 69 v “1070 Keyboard” on page 73 v “1080 Middle cover” on page 75 v “1090 Hinge cover” on page 76 v “1160 LCD and Keyboard bezel assembly” on page 86 v “1190 Fan assembly” on page 94 v “2000 ...

v Each FRU is available for all types or models, unless specific types or models are specified. v A CRU (customer replaceable unit) is identified by a single asterisk (*) or two asterisks (**) in the CRU ID column. An N in the CRU ID column means the part is not a CRU. A single asterisk (*) means th...

Overall 1 2 3 4 6 7 8 9 1 0 11 13 15 1 8 2 0 21 22 23 12 14 1 9 16 17 2 0a 2 0b 2 0c 5 Parts list ThinkPad G40, G41 139

14.1 in. TFT No. FRU P/N CRU ID 1 LCD Bezel ASM (*1) refer to item 24 91P8531 N LCD Bezel ASM - no Wireless LED (*1) refer to item 24 26R8027 LCD Bezel ASM - Wireless LED (*1) refer to item 24 26R8085 2 LCD Panel ASM Hydis 92P6636 N LCD Panel ASM IDT 92P6638 LCD Panel ASM AUO 92P6692 3 LCD Hinge/bra...

Keyboard All of the keyboards listed below are Tier 2 CRUs (customer replaceable units). Language P/N (NMB) P/N (Chicony) Arabic 91P8172 91P8116 Belgian 91P8166 91P8110 Chinese, Traditional 91P8192 91P8136 Czech 91P8180 91P8124 Danish 91P8160 91P8104 Dutch 91P8154 91P8098 English, U.K. 91P8150 91P80...

Language P/N Czech 24R6042 Danish 24R6032 Dutch 24R6035 English, U.K. 24R6025 English, U.S. 24R6024 Finnish 24R6033 French 24R6026 German 24R6027 Greek 24R6047 Hebrew 24R6040 Hungarian 24R6046 Italian 24R6029 Japanese 24R6039 Norwegian 24R6034 Polish 24R6041 Portuguese 24R6030 Russian 24R6044 Spanis...

FRU P/N Telephone cable (ND/NU) 27L0444 Telephone cable (SF/SI/SG/SE) 27L0462 Telephone cable (Spain) 27L0450 Telephone cable (SW/SU) 27L0445 Telephone cable (UK/IR/NZ) 27L0442 Telephone cable (US/CAN/TWN/APS/LA/BRZL) 27L0465 Optional FRUs All Optional FRUs are classified as Tier 1 CRUs (customer re...

Power cords All of the power cords listed below are Tier 1 CRUs (customer replaceable units). A ThinkPad power cord for a specific country or region is usually available only in that country or region: For 2-pin power cords: Region P/N Canada, U.S. 13H5264 Japan 74P4331 Argentina 36L8870 Brazil 49P2...