User Guide

26 ASUS P/I-P55SP4V User’s Manual

IV. BIOS SOFTWARE

Flash Memory Writer Utility

IV. BIOS

(Flash Memory Writer)

1. Enable "Boot Block Programming" jumper as shown in section III.

2. Make sure the system is running in real mode. This utility will not operate if

the system is under protected mode or virtual mode. This means that you

cannot reprogram the motherboard BIOS under the Windows environment or

with any memory management software, including HIMEM.SYS. The fol-

lowing describes the easiest way run your system from real mode:

• Boot from a floppy disk formatted with the "FORMAT A:/S" command with-

out creating CONFIG.SYS and AUTOEXEC.BAT files.

• If you are using MS-DOS 6.x, you can bypass the AUTOEXEC.BAT and

CONFIG.SYS by pressing <F5> when "Starting MS-DOS . . . “ line is dis-

played on the screen.

• For Windows 95 users, press <F8> to enter the Microsoft Windows 95 Startup

Menu and then choose "Safe mode command prompt only"

3. You should copy the contents of the \FLASH directory to your hard disk drive.

Once you have accomplished the above tasks, you can run the Flash Memory

Writer utility. To run the utility, change to the directory containing

PFLASH.EXE and then at the DOS prompt, type: PFLASH <Enter>

The Flash Memory Writer Utility Screen:

IMPORTANT: Flash Type may also be "INTEL 28F001BXT." If "unknown"

is after "Flash type --," then this ROM chip is not programmable or not sup-

ported with the PnP BIOS and therefore cannot be programmed by the Flash

Memory Writer.

This screen provides three command options, which you can invoke by typing the

corresponding number of the command and pressing <Enter> key. The following

describes each command:

ASUSTeK PNP BIOS

FLASH MEMORY WRITER V1.5

Flash Type -- SST 29EE010

Current BIOS Revision: #401A0-xxxx

Choose one of the following:

1. Save Current BIOS To File

2. Update BIOS Main Block From File

3. Advanced Features

Enter Choice: [1]

Press ESC To Exit

xxxx denotes the current BIOS version stored in the Flash EPROM