Sounds like the CMOS battery is low or bad.
On most newer motherboards there is a flat battery  (look like a watch or
calculator battery). Every computer I have seen that has this type uses
battery no.2032.

If yours does not have this, look for a barrel shaped battery (most I have
seen were a light blue in color) and soldered to the board. Near that
battery there is usually 2-3 upright posts (jumpers) that can be jumpered.
Check the documentation for you mother board. It usually says something
like - disable on board battery, external battery, etc.). You can replace
his with regular AA or AAA batteries and a battery holder that you can
purchase at Radio Shack or similar electronics store.

If you need any more help, email me.

Fran



----- Original Message -----
From: "Tomas Santos" <[log in to unmask]>
Sent: Friday, June 22, 2001 5:58 PM
Subject: 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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