CMOS Checksum Error - No Keyb either!

[pinkamoeba]

After plugging my printer into my computer after tranfering it to university, my computer subseqeuntly switched itself off and now on every boot displays the message

CMOS Checksum error - default loaded.

Now, i have the option of pressing F1 to continue or press delete to enter the BIOS. However, my computer keyboard won't function - it simply won't respond. The caps, num and scroll lights all blink when the computer is turned on, but refuse to when the error message is displayed.

I have replaced the battery and cleared the CMOS as previous posts have suggested. Short of replacing the motherboard, this has got me baffled!!!

Any ideas?

[Nighthawk]

The only time I've ever gotten that error on a motherboard I had to give up on it..

Have you unplugged everything except one stick of RAM, the CPU, and the video card? Tried both a USB and PS/2 keyboard? Other than that I'd say your motherboard's had it

[matthewfoley]

I am having this same problem with my abit vp6. Any solution found to this?

[davidamarkley]

If you're using a USB keyboard, try unplugging that one, and plug in a PS/2 keyboard, then turn it on. Since the CMOS is setting itself back to defaults, it is probably turning off USB Keyboard support in DOS. It's worth a shot... I'm researching this right now, and will let you know of anything else to try...

David

[davidamarkley]

Also, is there a way you can swap out the power supply? From what I've been reading, that could cause the CMOS Checksum error. There's hope though, motherboards being faulty is a rare cause of the CMOS Checksum error, so hopefully that won't be the case here...

David

It could just be a faulty CMOS battery. I see you said you replaced it once already, but it may have been faulty. Have you tried replacing it again?