Lenovo 6491- Manuals

Danger Hazardous moving parts. Keep fingers and other body parts away. Attention Before replacing any CRUs, turn off the computer and wait three to five minutes to let the computer cool before opening the cover. Static electricity prevention Static electricity, although harmless to you, can seriousl...

The power cords shall be safety approved. For Germany, it shall be H05VV-F, 3G, 0.75 mm 2 , or better. For other countries, the suitable types shall be used accordingly. Never wrap a power cord around a power adapter or other object. Doing so can stress the cord in ways that can cause the cord to fr...

Extension cords and related devices Ensure that extension cords, surge protectors, uninterruptible power supplies, and power strips that you use are rated to handle the electrical requirements of the product. Never overload these devices. If power strips are used, the load should not exceed the powe...

v Do not use non-desktop air filtration devices. Operating environment The optimal environment in which to use your computer is 10°C-35°C (50°F-95°F) with humidity ranging between 35% and 80%. If your computer is stored or transported in temperatures less than 10°C (50°F), allow the cold computer to...

To connect: 1. Turn everything OFF. 2. First, attach all cables to devices. 3. Attach signal cables to connectors. 4. Attach power cords to outlet. 5. Turn device ON. To disconnect: 1. Turn everything OFF. 2. First, remove power cords from outlet. 3. Remove signal cables from connectors. 4. Remove a...

Laser compliance statement Some personal computer models are equipped from the factory with a CD or DVD drive. CD and DVD drives are also sold separately as options. CD and DVD drives are laser products. These drives are certified in the U.S. to conform to the requirements of the Department of Healt...

Note to CATV system installer This reminder is provided to call the CATV system installer's attention to Article 820-40 of the National Electrical Code (NEC) that provides guidelines for proper grounding and, in particular, specifies that the cable ground shall be connected to the grounding system o...

The following notice applies to all countries and regions: Danger Outdoor antenna grounding If an outside antenna or cable system is connected to the equipment, be sure the antenna or cable system is grounded as to provide some protection against voltage surges and built-up static charges. Lightning...

complies with EN 50332-2 Sub clause 5.1. This specification limits the computer ’s maximum wide band true RMS output voltage to 150mV. To help protect against hearing loss, ensure that the headphones or earphones you use also comply with EN 50332-2 (Sub clause 6.1) for a wide band characteristic vol...

Introduction This User Guide contains the following information: v Chapter 1, “Arranging your workspace,” on page 1 provides information about setting up your computer for comfort and the impact of light sources, air circulation, and electrical outlets. v Chapter 2, “Setting up your computer,” on pa...

Chapter 1. Arranging your workspace To get the most from your computer, arrange both the equipment you use and your work area to suit your needs and the kind of work you do. Your comfort is of foremost importance, but light sources, air circulation, and the location of electrical outlets also can af...

Chapter 2. Setting up your computer Before you begin, make sure you set up your computer in the best possible work area that suits your needs and the kind of work you do. For more information, refer to Chapter 1, “Arranging your workspace,” on page 1. Note: Read “Important safety information” on pag...

4. Carefully, position the computer with the air vents facing upward so that the computer sits on the vertical stand as shown. Connecting your computer Use the following information when connecting your computer. Look for the small connector icons on the back of your computer. Important Setting the ...

Chapter 3. Installing options This chapter provides an introduction to the features and options that are available for your computer. You can expand the capabilities of your computer by adding memory, adapters, or drives. When installing an option, use these instructions along with the instructions ...

Specifications This section lists the physical specifications for your computer. Dimensions Width: 325 mm (12.8 in.) Height: 107 mm (4.21 in.) Depth: 410 mm (16.14 in.) Weight Minimum configuration as shipped: 8.2 kg (18 lbs) Maximum configuration: 10.4 kg (23 lbs) Environment Air temperature: Opera...

Supported operating positions Attention: Do not block the air vents on the top of the computer with any type of objects such as a monitor. To provide proper air flow to internal components, you must position your computer in one of the positions as illustrated below. Tools required To install some o...

Connector Description Mouse connector Used to attach a mouse, trackball, or other pointing device that uses a standard mouse connector. Parallel connector Used to attach a parallel printer, parallel scanner, or other devices that use a 25-pin parallel connector. Ethernet connector Used to attach an ...

5. Close the adapter latch to secure the adapter. What to do next: v To work with another option, go to the appropriate section. v To complete the installation, go to “Replacing the cover and connecting the cables” on page 39. Installing internal drives This section provides information and instruct...

Setting a rescue device in the startup sequence Before you start the Rescue and Recovery program from a CD, DVD, USB hard disk drive, or any external device, you must first change the startup sequence in the Setup Utility. To view or change the startup sequence, do the following: 1. With the compute...

Chapter 7. Troubleshooting and diagnostics This chapter describes some basic troubleshooting and diagnostic programs. If your computer problem is not described here, see Chapter 8, “Getting information, help, and service,” on page 61 for additional troubleshooting resources. Basic troubleshooting Th...

Symptom Action The Enhanced Performance USB Keyboard does not work. Verify that: v The computer is turned on. v The keyboard is securely connected to a USB connector on the front or rear of the computer. v No keys are stuck. If you cannot correct the problem, have the computer serviced. Refer to the...

Note: Phone numbers are subject to change without notice. If the number for your country or region is not provided, contact your Lenovo reseller or Lenovo marketing representative. If possible, be at your computer when you call and have the following information available: v Machine type and model v...

Appendix A. Manual modem commands The following section lists commands for manually programming your modem. Commands are accepted by the modem while it is in Command Mode. Your modem is automatically in Command Mode until you dial a number and establish a connection. Commands can be sent to your mod...

Command Function &V1 Display Last Connection Statistics &W_ &W0 Stores the active profile as Profile 0 &W1 Stores the active profile as Profile 1 %E_ %E0 Disable auto-retrain %E1 Enable auto-retrain +MS? Displays the current Select Modulation settings +MS=? Displays a list of support...

Index A Access Help 62 adapter connectors 30 installing 30 peripheral component interconnect (PCI) 16 antivirus software, updating 11 arranging your workspace 1 audio line in connector 21 audio line out connector 21 audio subsystem 14 B battery, changing 37 BIOS, updating (flashing) 53 C cables, con...

Danger Hazardous moving parts. Keep fingers and other body parts away. Attention Before replacing any CRUs, turn off the computer and wait three to five minutes to let the computer cool before opening the cover. Static electricity prevention Static electricity, although harmless to you, can seriousl...

The power cords shall be safety approved. For Germany, it shall be H05VV-F, 3G, 0.75 mm 2 , or better. For other countries, the suitable types shall be used accordingly. Never wrap a power cord around a power adapter or other object. Doing so can stress the cord in ways that can cause the cord to fr...

Extension cords and related devices Ensure that extension cords, surge protectors, uninterruptible power supplies, and power strips that you use are rated to handle the electrical requirements of the product. Never overload these devices. If power strips are used, the load should not exceed the powe...

v Do not use non-desktop air filtration devices. Operating environment The optimal environment in which to use your computer is 10°C-35°C (50°F-95°F) with humidity ranging between 35% and 80%. If your computer is stored or transported in temperatures less than 10°C (50°F), allow the cold computer to...

To connect: 1. Turn everything OFF. 2. First, attach all cables to devices. 3. Attach signal cables to connectors. 4. Attach power cords to outlet. 5. Turn device ON. To disconnect: 1. Turn everything OFF. 2. First, remove power cords from outlet. 3. Remove signal cables from connectors. 4. Remove a...

Laser compliance statement Some personal computer models are equipped from the factory with a CD or DVD drive. CD and DVD drives are also sold separately as options. CD and DVD drives are laser products. These drives are certified in the U.S. to conform to the requirements of the Department of Healt...

Note to CATV system installer This reminder is provided to call the CATV system installer's attention to Article 820-40 of the National Electrical Code (NEC) that provides guidelines for proper grounding and, in particular, specifies that the cable ground shall be connected to the grounding system o...

The following notice applies to all countries and regions: Danger Outdoor antenna grounding If an outside antenna or cable system is connected to the equipment, be sure the antenna or cable system is grounded as to provide some protection against voltage surges and built-up static charges. Lightning...

complies with EN 50332-2 Sub clause 5.1. This specification limits the computer ’s maximum wide band true RMS output voltage to 150mV. To help protect against hearing loss, ensure that the headphones or earphones you use also comply with EN 50332-2 (Sub clause 6.1) for a wide band characteristic vol...

Introduction This User Guide contains the following information: v Chapter 1, “Arranging your workspace,” on page 1 provides information about setting up your computer for comfort and the impact of light sources, air circulation, and electrical outlets. v Chapter 2, “Setting up your computer,” on pa...

Chapter 1. Arranging your workspace To get the most from your computer, arrange both the equipment you use and your work area to suit your needs and the kind of work you do. Your comfort is of foremost importance, but light sources, air circulation, and the location of electrical outlets also can af...

Chapter 2. Setting up your computer Before you begin, make sure you set up your computer in the best possible work area that suits your needs and the kind of work you do. For more information, refer to Chapter 1, “Arranging your workspace,” on page 1. Note: Read “Important safety information” on pag...

4. Carefully, position the computer with the air vents facing upward so that the computer sits on the vertical stand as shown. Connecting your computer Use the following information when connecting your computer. Look for the small connector icons on the back of your computer. Important Setting the ...

Chapter 3. Installing options This chapter provides an introduction to the features and options that are available for your computer. You can expand the capabilities of your computer by adding memory, adapters, or drives. When installing an option, use these instructions along with the instructions ...

Specifications This section lists the physical specifications for your computer. Dimensions Width: 325 mm (12.8 in.) Height: 107 mm (4.21 in.) Depth: 410 mm (16.14 in.) Weight Minimum configuration as shipped: 8.2 kg (18 lbs) Maximum configuration: 10.4 kg (23 lbs) Environment Air temperature: Opera...

Supported operating positions Attention: Do not block the air vents on the top of the computer with any type of objects such as a monitor. To provide proper air flow to internal components, you must position your computer in one of the positions as illustrated below. Tools required To install some o...

Connector Description Mouse connector Used to attach a mouse, trackball, or other pointing device that uses a standard mouse connector. Parallel connector Used to attach a parallel printer, parallel scanner, or other devices that use a 25-pin parallel connector. Ethernet connector Used to attach an ...

5. Close the adapter latch to secure the adapter. What to do next: v To work with another option, go to the appropriate section. v To complete the installation, go to “Replacing the cover and connecting the cables” on page 39. Installing internal drives This section provides information and instruct...

Setting a rescue device in the startup sequence Before you start the Rescue and Recovery program from a CD, DVD, USB hard disk drive, or any external device, you must first change the startup sequence in the Setup Utility. To view or change the startup sequence, do the following: 1. With the compute...

Chapter 7. Troubleshooting and diagnostics This chapter describes some basic troubleshooting and diagnostic programs. If your computer problem is not described here, see Chapter 8, “Getting information, help, and service,” on page 61 for additional troubleshooting resources. Basic troubleshooting Th...

Symptom Action The Enhanced Performance USB Keyboard does not work. Verify that: v The computer is turned on. v The keyboard is securely connected to a USB connector on the front or rear of the computer. v No keys are stuck. If you cannot correct the problem, have the computer serviced. Refer to the...

Note: Phone numbers are subject to change without notice. If the number for your country or region is not provided, contact your Lenovo reseller or Lenovo marketing representative. If possible, be at your computer when you call and have the following information available: v Machine type and model v...

Appendix A. Manual modem commands The following section lists commands for manually programming your modem. Commands are accepted by the modem while it is in Command Mode. Your modem is automatically in Command Mode until you dial a number and establish a connection. Commands can be sent to your mod...

Command Function &V1 Display Last Connection Statistics &W_ &W0 Stores the active profile as Profile 0 &W1 Stores the active profile as Profile 1 %E_ %E0 Disable auto-retrain %E1 Enable auto-retrain +MS? Displays the current Select Modulation settings +MS=? Displays a list of support...

Index A Access Help 62 adapter connectors 30 installing 30 peripheral component interconnect (PCI) 16 antivirus software, updating 11 arranging your workspace 1 audio line in connector 21 audio line out connector 21 audio subsystem 14 B battery, changing 37 BIOS, updating (flashing) 53 C cables, con...