Intel SDS2 Flash Update Utility, Cmos Memory Definition, Clearing Cmos, Loading the System Bios

Intel® Server Board SDS2 BIOS

6.3.3CMOS Memory Definition

The CMOS map is available in the NVRAM.LST file generated for every BIOS release. The CMOS map is subject to change without notice.

6.3.4Clearing CMOS

The BIOS detects the state of the CMOS jumper. If the jumper 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 unaffected through 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.

6.4Flash Update Utility

Note: The Phoenix* PHLASH utility must be run without the presence of a 386 protected mode control program, such as Microsoft* Windows* NT* / 2000 or EMM386*. Phoenix* PHLASH uses the processor’s flat addressing mode to update the flash ROM.

6.4.1Loading 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 takes a file or series of files from a hard or floppy disk, and loads it in the specified area of Flash ROM.

To manually load a portion of the BIOS, the user must specify which data file(s) to load. The choices include PLATCBLU.BIN, PLATCXLU.BIN, PLATCXXX.BIN, PLATCXLX.BIN or PLATCXXU.BIN. The last three letters specify the functions to perform during the flash process:

C = Rewrite BIOS

B = Rewrite Boot block

L = Clear LOGO area

U = Clear user binary

X = place hold

Revision 1.2	67
Order Number:	A85874-002