http://www.ibm.com/pc/us/

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

3.HelpCenter

4.Levels 1 and 2 Support

To update (flash) the BIOS, see “Flash (BIOS/VPD) update procedure” on page 200.

Flash (BIOS/VPD) update procedure

Attention:

Refer to the information label located inside the system unit cover for any model-specific information.

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.

Flash recovery boot block jumper

Attention:

If an interruption occurs during a Flash/BIOS upgrade, the BIOS might be left in an unusable state. The Boot Block jumper enables you to restart the system and recover the BIOS.

To perform a Flash/BIOS recovery using the Virtual clear CMOS/BIOS recovery jumper, use the following procedure.

1.Power-off the computer and remove the cover.

2.Move the system board Virtual clear CMOS/BIOS recovery jumper to the ROM recovery position. Refer to “Identifying parts on the system board - small desktop model” on page 27 or the label inside the computer for more information.

3.Insert the upgrade diskette into the diskette drive.

4.Power-on the computer. The IBM Logo will appear.

5.When the Flash Update Utility appears, select the country/keyboard, then press Enter.

6.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.

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

200Hardware Maintenance Manual

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IBM 6336, 6348, 6342, 6339, 6346, 6341, 2257, 2256, 6337, 2254 Flash BIOS/VPD update procedure, Flash recovery boot block jumper

6339, 6337, 6342, 6341, 6336 specifications

IBM's 6348, 6346, 6347, 2254, and 2257 models are part of the company's extensive portfolio of enterprise-level computing solutions, designed to enhance performance and efficiency for businesses.

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