CMOS checksum bad?--new mobo

I just purchased a new motherboard (Asus P5L-VM 1394). Everything is hooked up, but when i turn the PC on, it runs through a testing sequence it seems like. Everything is fine until it gets to the part that says "cmos checksum bad." Then it gives me 15 seconds before the whole computer shuts off. I have tried clearing the cmos memory at least 20 times... the correct way according to the manual. It will just do the same thing but say "incorrect date/time" or something like that instead. Then i restart the computer again and it goes back to "cmos checksum bad." I know it's not the battery, because I have already replaced that.

I have 1 stick of 1gig DDR2 ram and 1 stick of 2gig DDR2 ram.
Intel Pentium D Dual Core Processor.

Any help would be greatly appreciated

 

Try typing in the correct date and time and saving changes! That usually works.

 

Check this:http://www.computerhope.com/issues/ch000237.htm

 

I would love to do that, but the problem is, i have 15 seconds before the computer shuts down, each time i turn it on. I don't know what else to do.

 

Please pardon my original response, as I didn't pay attention when reading your post! If I'm correct, this is a new build that doesn't work? Just went through Asus's site looking for the problem, and was surprised to find that this board has a "crash proof" bios.

I would suggest RMA'ing the board to the company that you bought it from, as the bios issue that you mentioned isn't referenced on Asus's site or the internet, as best that I can tell.

My original suggestion works with computers that have a bad CMOS battery.

Hope this helps!

 

If I've read your intial and last post correctly, your machine goes through the Power-On Self-Test (POST), then gives you the "bad CMOS checksum" error message.

You should be able to get into the BIOS setup before the POST completes (and before you get the 15-second count-down) by pressing the [Delete] key shortly after turning on the power. Once you get the POST screen or the error message, it's too late. You should see a message at the bottom of your monitor screen that tells you when you can press [Delete] to get into the BIOS setup. Your window of opportunity is only a few seconds, so have your finger on the key when you power up.

Once you're into the BIOS setup, enter the correct date and time, then press F5 to re-enter the setup defaults. With a little luck, that will over-write any corrupted data in the BIOS setup, and allow your system to start. Once you've got that fixed, you can re-boot, go back into the BIOS setup, and re-set any custom settings that you need for your particular system.

One caution: if your hard drive setting(s) in the BIOS setup are not "Auto", make a note of what they are so that you can restore them if necessary.

Unfortunately, Novice could be right -- you could have a damaged CMOS chip that is not capable of retaining the BIOS data uncorrupted. If that's the case, you'll have little choice but to get your supplier to exchange the mobo for another.