CMOS BAD CHECKSUM

[altwight]

I have a shitty yet decent computer. (Shitty as in the case is a heap of trash broken metal etc but it used to run totally fun)

Here's the problem:

Wanted to set up old trash PC to the TV so we could continue streaming since our power jack on the laptop broke.

When I hooked it up everything booted fine. The only problems were that the VGA component and the network adapters weren't being found.

Ended up in the BIOS and turned on something or did something either way the results required a CMOS clear to reset BIOS to default.

Well I did that and at first it wasn't booting at all. Power button, fans would spin HD would make noise but stop.

Then I got it to boot and it would go straight to the BIOS display thing and say CMOS CHECKSUM BAD at the bottom. Press f1 to do something f2 to load defualt setting or something. Anyway I hit f2 and it doesn't do anything and eventually the computer just locks up.

P5GC-VM motherboard
c2duo processor
450gts card
4gb ram

Currently using the onboard VGA since it wouldn't recognize anything but that.

edit: using a USB keyboard thinking that may be a problem since I reset the BIOS.

[Tajin]

ITS THE DEVIL!

And the clock battery on that old motherboard has gone to shit, have it replaced or it'll keep asking for default values everytime you turn it off/on

[altwight]

put my battery in it and it does same thing so it's not the battery.

also unplugged the keyboard and got it to boot to OS

[altwight]

Fixed everything but

The only problems were that the VGA component and the network adapters weren't being found.

Drivers are installed for both. Won't recognize my PCIE slot (gts 450) plugging up video to it yields nothing and trying to install nvidia says no hardware found.

[Artemicon]

You could have actual BIOS chip problems causing you to lose settings regardless of you having a good battery or not. I would try removing power to your system and removing the card and anything extra you have on the motherboard except memory and CPU obviously. Then going into your BIOS utility and loading the optimized defaults (usually F9) then saving them and restarting the computer. Power it down and add any cards/extra stuff you have 1 at a time, (pref the GPU first and trying to install it before adding any other add-in cards.)

If this doesn't work you could try cleaning and re-seating your DIMMs and CPU but I doubt that will do much. I will note that in my years of debugging servers I've seen much weirder shit be solved by cleaning and re-seating dimms and cpus before.