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2 System Board
Devices on the ISA Bus
The following diagrams show the position of the system board switches on
the desktop and minitower models.
BIOS Update Crisis
Recovery Procedure
If, for example, during a BIOS update process, the procedure is interrupted
by a power failure, and the system does not start, then you can still recover
the situation of a destroyed system BIOS. However, it should be noted that
during the recovery procedure, there is no image on the screen, nor access
to the keyboard or mouse (only “vital” devices that are required to boot on
the floppy are initialized). Follow these steps to recover the BIOS:
1 Ensure that you have created a DOS-bootable diskette. This floppy dis-
kette contains all the recovery and system BIOS programming software
(phlash.exe, platform.bin and hblxxxyy.Ful). Include the flash command
in the autoexec.bat, for example: phlash /mode=3 HC1xyyzz.Ful
H = HP Professional PC
C = Kayak XA (Pentium II models)
1 = Kayak family
x = major revision
yy = minor revision
zz = language
2 Turn off the computer. Set Switch 9 to the Closed position.
3 Insert the DOS-bootable diskette.