Thomas,
A checksum error would more than likely indicate that at least part of the
BIOS is corrupt. The fact that you can't get into the BIOS settings and the
system won't post and won't find the harddrive helps to confirm this. First
you might want to try replacing the CMOS battery. If that doesn't work and
it's a flashable BIOS,  and you can track down the mobo manufacturer (you
can decode it from Award's site by checking the BIOS ID string), you *might
be able to get it to flash and fix it.  If not, it's probably time to retire
that mobo. By the way, the CPU you describe in your message is not a 486.
I'ts an early AMD K5/75 mhz, which is a Pentium class CPU.
Regards,
Glenn Josephson
[log in to unmask]
----- Original Message -----
From: "Tomas Santos" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, June 22, 2001 5:58 PM
Subject: [PCBUILD] PC won't POST


> Could someone pls. enlighten me?
> What would cause a "BIOS ROM checksum Error"
> message to be displayed on boot up of
> MOBO : MB-8433UUD (Has a DALLAS Modium battery)
> 486 Am5x86-P75(X5-133), 32Mb ext mem? (Award BIOS)
> Will boot from DOS 6.2 floppy, cannot get it to
> recognize hard drive. Will not POST.
>
> Tried getting into CMOS set up by pressing DEL but
> system goes on to recognize installed 1.44 floppy
> and requests system disk to be introduced and to
> press Enter. It never concedes access to CMOS setup!
> Checked out mem sticks in alternate system & OK!
> Removed video card & got appropriate beeps!
>
> Is this an indication that MOBO is kaput? TIA
>
> Tomas Santos  [[log in to unmask]]
>
>
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