Bios binary changes?

Hot-swapping and Boot-Block flash & Boot block flash and floppy support
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Badut
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Posts: 5
Joined: Fri Aug 20, 2004 3:16 am

Hi,

I flashed my Asus A7N8X-X with revision 1009 bios a while ago.
Recently, it's been crashing so I decided to reflash the bios and see what happens. I saved a copy of the 1009 bios already in the system before I reflashed 1009 to it.

I took the 1009 backed up from the system and compared it to the original 1009 binary that was downloaded from Asus in a hex editor. There were a number of differences! :cry:

Is the bios chip defective or what? is there something that writes to the bios that causes these changes?
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ruelnov
Master Flasher
Posts: 172
Joined: Tue Jun 08, 2004 2:11 pm
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It depends on what area of the BIOS you are looking at.

DMI is one area that is updated when you add/remove hardware. But when you see a difference in the bootblock, decompression block, system bios, and ACPI table then your BIOS got corrupted.
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Rainbow
The UniFlasher
Posts: 3122
Joined: Wed Mar 20, 2002 4:16 pm
Location: Slovakia
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AFAIK, boards with nForce2 chipset save some settings somewhere in the BIOS area - so some other areas might differ. It's unsafe bad design which causes BIOS failures - if it hangs when saving the settings, the BIOS becomes corrupt (you get BootBlock BIOS).
Patched and tested BIOSes are at http://wims.rainbow-software.org
UniFlash - Flash anything anywhere
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