IBM 6643, 2179 CMOS Clear Procedure, Flash BIOS/VPD update procedure, Hardware Maintenance Manual

vSources for determining the latest level BIOS available

1.IBM Home Page, Support http://www.ibm.com/pc/us/

2.PC PartnerInfo-Technical Database (CTSTIPS.NSF)

3.IBM Support Center

4.Levels 1 and 2 Support

5.RETAIN®

vSources for obtaining the latest level BIOS available

1.IBM Home Page, Support http://www.ibm.com/pc/us/

2.PC PartnerInfo-Technical Database (CTSTIPS.NSF)

3.Support Center

4.Levels 1 and 2 Support

To update (flash) the BIOS, see “Flash (BIOS/VPD) update procedure.”

CMOS Clear Procedure

1.Power-off the computer

2.Unplug the power cord.

3.Remove the rear bucket housing.

4.Remove the rear EMC shield.

5.Move the CMOS Clear jumper from pins 1,2 to pins 2.3 (See “System board layout” on page 14).

6.Power-on the computer. This will erase the CMOS information.

7.Power-off the computer.

8.Unplug the power cord.

9.Move the CMOS Clear jumper from pins 2,3 back to pins 1,2.

10.Install the rear EMC shield.

11.Install the rear bucket housing.

12.Power-on the computer.

Flash (BIOS/VPD) update procedure

1.Power-off the computer.

2.Insert the flash update diskette into drive A.

3.Power-on the computer.

4.When the Update Utility appears; select the country/keyboard, then press Enter.

5.If the computer serial number was previously recorded, the number is displayed with an option to update it. Press Y to update the serial number.

6.Type the 7-digit serial number of the computer you are servicing, then press Enter.

7.Follow the instructions on the screen to complete the flash (BIOS/VPD) update procedure.

72Hardware Maintenance Manual