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 your
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
Attention
If an interruption occurs during a Flash/BIOS upgrade,
the BIOS might be left in an unusable state. The Boot
Block switch enables you to restart the system and
recover the BIOS.
To perform a Flash/BIOS recovery using the boot block
switch:
1. Power-off the computer and remove the coverand
front bezel.
2. Move the system board rocker switch 3 to the on
position. Refer to “System board layout” on
page 183 or the information 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.
Note: Depending on the amount of memory
installed, it may take up to a minute for the Logo to
appear .
5. When the Flash Update Utility appears; select your
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.
8. Follow the instructions on the screen to complete the
flash (BIOS/VPD) update procedure.
9. When you are instructed to reboot the computer,
power-off the computer and move the rocker switch 3
to the normal (off) position. Then, replace the cover
and power-on the computer.
152 IBM PC 300/IntelliStation Vol 3 HMM