Compaq dc7100 HP Compaq dc71xx and dx61xx Series Business Desktop Computers Te - Page 150

ROM Flashing, 2.1 Upgrading

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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: Table 8-1 Boot Block Codes Num Lock LED Cap Lock LED Scroll Lock LED Meaning Off On Off Administrator password required. On Off Off Boot failed. Reset required for retry. Off Off On Flash failed. On On On Flash complete. 8-2 361834-002 Technical Reference Guide

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8-2
361834-002
Technical Reference Guide
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:
Table 8-1
Boot Block Codes
Num Lock LED
Cap Lock LED
Scroll Lock LED
Meaning
Off
On
Off
Administrator password required.
On
Off
Off
Boot failed. Reset required for retry.
Off
Off
On
Flash failed.
On
On
On
Flash complete.