Hi,

Hi all, first of all my apologise for my bad English.



I own the Asus P5B-V motherboard and the processor Intel Core 2 Duo E6750 2,67GHz 4Mb.

I had everything working fine but the stupid me went for an BIOS upgrade this morning (wish I never did this but this is too late now smile.gif). So, I ve downloaded the AsusUpdate Tool (I now also know that you should NEVER upgrade your bios from within XP itself but this is too late now too) for windows and downloaded the lastest bios file, version 1205. After this my pc did NOTHING after restart. He hanged in the screen: 'press DEL to enter setup' but I could not get into the BIOS. So I plugged out all my cables and tried again. NOTHING! So...... I ve pulled out my processor and put it back. After this I DID get a restart of windows but also some notification when turing my system on (something about my processor not beeing compatible and that the speed would be reduced). But after a few restarts my PC hanged AGAIN. But this time at some entire other moment (in the XP boot screen). So I again plugged out all my cables and put them back in and now I m in windows again. Now my pc works fine and after random times I get a total hangup of my system and have to boot it again at moments like this with my POWERbutton.

So......... in the end......... I want to downgrade to a previous version of the BIOS where my pc worked fine and that was version 1102. So I checked the option BIOS DOWNGRADABLE in the options of the AsusUpdate program and tried a previous version of the bios where my PC used to work ok. But I get some kind of message that it is not possible. Also the flash option in the bios menu gives the same message that the bios cannot be downgraded to a previous version. So here I m am stucked with the latest bios version and cannot downgrade to the previous BIOS.

Stupid enough I did make the change to 1205 and now there no way back to 1102......

O yes, one more thing:

this is the message I get when trying to flash from 1205 to 1102 with the AsusUpdate utility in Windows XP (with bios Downgradable ENABLED in the option menu of the update utility):

Warning! the BIOS image can't use in this motherboard (the EEPRPOM Type incompatible)



I eventually found this post ( Neowin Forums ) and hoped this would be the solution for my problem.

So I began:

I went to Bootdisk.Com and downloaded the flashcd.zip file there and unpacked it and first read the manual 2 times.
After this I grabbed the Afudos 2.11 file from the asus site. Also downloaden the 1102.ROM from the asus site.

I did everything like the manual from bootdisk.com said but after a restart with the bootable cd in my drive I get the following information:

CDROM device driver for IDE (Four Channels Supported)
© Copyright Oak Technology Inc. 1993-1996

Driver version : V340
Device Name : TOMATO

No drivers found, aborting installation


Caldera DR-DOS 7.03
Copyright © 1976, 1998 Caldera, INC.

Device driver not found: 'TOMATO'.
No valid CDROM device drivers selected

The bootfiles are in drive letter A:
You bios utilities are in driver letter R:

Strike a key when ready . . .

(I now pressed a key)

Bootdisk.Com
A:\>




And that s it!! What am I doing wrong and how can I change my bios?

thanks for all help!

Greetings from the Netherlands from Sander Heijnen

Hi Sanderh Welcome to PCHF try reflash it using this method

Use built-in EZ Flash BIOS to Refresh

1. Download latest ASUS BIOS from ASUS WWW and rename the BIOS filename to "xxxxx.ROM" (xxxxx represents the motherboard model you used, eg. P4C800 BIOS is named p4c800.ROM), and save the file in a floppy disk.

2. Reboot the system.

3. When the system is at POST after reboot, please hold down "Alt" + "F2" to view the following image. You may start executing EZ Flash utility. Please place the floppy disk with latest BIOS inside and insert into the floppy drive.


Note: If you have not placed any floppy disk into the floppy drive, you will see a warning message stating "Floppy not found". If the utility can not find the correct files in the floppy disk, it will show "p4c800.ROM not found!" (Assuming the motherboard is P4C800) message.



4. The system will auto-detect whether the floppy disk contains the relevant files in the floppy drive. If there is no problem, the EZ Flash utility will begin auto-refreshing and reboot the system once it is done . The procedure for refreshing is show below.


Note: Please don't turn off or reboot the system during BIOS refreshing! By doing so, you will cause serious damage to your system!