I have an Abit-AN8 and I have been having trouble with the motherboard. Everytime I restart the PC, I have to clear the CMOS. I tried changing the CMOS battery, but that didn't help much. Intel E6300 Core 2 Duo G.Skill 2GB DDR26400 Sapphire Radeon X1900XT Seagate 320GB HDD WD 80GB HDD Windows XP Professional / Windows Vista

Explain why you need to clear the CMOS? When you first boot up enter teh BIOS screens and check the date. If it is wrong then the battery is not holding the values. Do you use a power strip to shut down the system? Normally an ATX system (yours) will hold the CMOS settings even when shut off, as long as there is power to the computer. Shutting off the PSU switch, or using a surge protector switch will interrrupt the power to the computer. If the CMOs battery is no good the CMOS values will then revert to the defaults. This shouldn't be a cause to clear the CMOS though.

Hi. I had a mobo with the exact same problem. Every time I powered the PC it wouldnt boot, I had to remove the CMOS battery in order to boot. Also replaced CMOS battery and nothing. Finally I replaced the CMOS IC with a new one I ordered from an electronics store. After flashing the new chip I no longer had problems. Maybe thats your case. Once upon a time the floppy disk was king.

If the issue is the same one as Dark666 mentions above then flashing the BIOS might solve the problem.

I am not sure why I have to clear the CMOS. I am running it from an outlet and not switching the power off on the actual PSU. I have not tried flashing the BIOS yet, but thats my next step. How would I got about finding what CMOS IC my mobo uses and how to change it. Thanks for all the help so far guys. Intel E6300 Core 2 Duo G.Skill 2GB DDR26400 Sapphire Radeon X1900XT Seagate 320GB HDD WD 80GB HDD Windows XP Professional / Windows Vista

Also, I forgot to add that when I turn the computer on I get a CMOS Checksum error - Defaults Loaded! Intel E6300 Core 2 Duo G.Skill 2GB DDR26400 Sapphire Radeon X1900XT Seagate 320GB HDD WD 80GB HDD Windows XP Professional / Windows Vista

You need to enter the BIOS screens and update the values. Especially the date and time. Go through all the screens and set values as needed. Download SIW.exe and use it to determine the model and version of your motherboard. SIW should also tell you which BIOS version is currently running. If SIW doesn't give you enough info you need to get the model off the motherboard. Then download the BIOS file and installer from the motherboard manufacturer's site. Get SIW from the link below. http://www.gtopala.com/siw-download...