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STL2 Server Board TPS Basic Input Output System (BIOS)
Revision 1.0 4-43
4.4 CMOS Default Override
The BIOS detects the state of the CMOS default switch. If the switch is set to “CMOS Clear”
prior to power-on or a hard reset, the BIOS changes the CMOS and NVRAM settings to a
default state. This guarantees the system’s ability to boot from floppy.
Password settings are not affected by CMOS clear. The BIOS clears the ESCD parameter
block and loads a null ESCD image. The boot order information is also cleared when CMOS is
cleared via jumper. The configuration data for the on-board SCSI controllers is not cleared
during a clear CMOS event as each device controls its own default settings
If the Reset Configuration Data option is enabled in Setup, ESCD data and BIOS Boot
specification data is cleared and reinitialized in next boot.
4.5 Flash Update Utility
The BIOS update utility (Phoenix* Phlash.exe) loads a fresh copy of the BIOS into flash ROM.
The loaded code and data include the following:
•
On-board video BIOS, network controller BIOS, and SCSI BIOS.
•
BIOS Setup utility.
•
User-definable flash area (user binary area).
•
OEM logo (splash screen).
When running Phoenix* Phlash in interactive mode, the user may choose to update a
particular flash area. Updating a flash area takes a file or series of files from a hard or floppy
disk, and loads it in the specified area of flash ROM.
Note: The Phoenix Phlash utility must be run without the presence of a 386 protected mode
control program, such as Windows* or EMM386*. Phoenix* Phlash uses the processor’s flat
addressing mode to update the flash part.
4.5.1 Loading the System BIOS
The BIOS update utility (PHLASH) loads a new copy of the BIOS into Flash ROM. The loaded
code and data include the following:
•
On-board Video BIOS and SCSI BIOS
•
BIOS Setup Utility
•
Quiet Boot Logo Area
When running PHLASH in interactive mode, the user may choose to update a particular Flash
area. Updating a flash area loads a file or a series of files from a hard or floppy disk into the
specified area of Flash ROM.