http://www.ibm.com/pc/us/
2. PC PartnerInfo-TechnicalDatabase (CTSTIPS.NSF)
3. HelpCenter
4. Levels 1 and 2 Support
Toupdate (flash) the BIOS, see “Flash (BIOS/VPD) update procedure” on page
105.
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 Yto update the serial number,or
Nto skip.
6. Typethe 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.
Toperform a Flash/BIOS recovery using the recovery jumper, use the following
procedure.
1. Power-off the computer and remove the cover.
2. Move the system board recovery jumper to the clear position. Refer to
“Identifying parts on the system board”on page 23 or the label inside the
computer for more information.
3. Place the cover back on the system.
4. Place the BIOS flash recovery diskette in the floppy disk drive.
5. Restore power to the system by plugging in the power cord.
6. During the recovery process, there will be a sequence of short beeps. This
sequence of beeps will be followed by a single long beep and then silence
from the system speaker.During this process there will be no video. After the
last long beep, hold the power button in for approximately ten seconds to
turn the system off.
7. Remove the power cord and cover.
Chapter9. Additional Service Information 105