Rom Flashing; Upgrading - HP Compaq dc7100 DT Technical Reference Manual

BIOS ROM
This chapter includes the following topics:
■
ROM flashing (8.2), page 8-2
■
Boot functions (8.3), page 8-3
■
Setup utility (8.4) , page 8-6
■
Client management functions (8.5), page 8-17
■
PnP support (8.6) , page 8-19
■
USB legacy support (8.7), page 8-20

8.2 ROM Flashing

The system BIOS firmware is contained in a flash ROM device that can be re-written with BIOS
code (using the ROMPAQ utility or a remote flash program) allowing easy upgrading, including
changing the splash screen displayed during the POST routine.

8.2.1 Upgrading

Upgrading the BIOS is not normally required but may be necessary if changes are made to the
unit's operating system, hard drive, or processor. All BIOS ROM upgrades are available directly
from HP. Flashing is done either locally with the HP-provided Windows program, a ROMPaq
diskette or remotely using the network boot function (described in the section 8.3.2).
This system includes 64 KB of write-protected boot block ROM that provides a way to recover
from a failed flashing of the system BIOS ROM. If the BIOS ROM fails the flash check, the boot
block code provides the minimum amount of support necessary to allow booting the system from
the diskette drive and re-flashing the system ROM with a ROMPAQ diskette. Note that if an
administrator password has been set in the system the boot block will prompt for this password
by illuminating the caps lock keyboard LED and displaying a message if video support is
available. A PS/2 keyboard must be used during bootblock operation.
Since video may not be available during the initial boot sequence the boot block routine uses the
Num Lock, Caps Lock, and Scroll Lock LEDs of the PS/2 keyboard to communicate the status of
the ROM flash as follows:
Num Lock LED
Off
On
Off
On
8-2
Table 8-1
Boot Block Codes
Cap Lock LED Scroll Lock LED
On
Off
Off
On
361834-002
Off Administrator password required.
Off Boot failed. Reset required for retry.
On Flash failed.
On Flash complete.
Meaning
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