hello! after clearing my CMOS on my Shuttle AK12 V3 with a Duron 950 mhz, it seems that my pc wont start up! basically what happens is that when i turn the power switch on, the POST produces one long beep about 5 seconds and then the PC powers down? does anybody know what the problem is? could it be that my CPU has gone dead? oh and i also tried it with an additional 850 Duron CPU but it still does the same thing! could it be the motherboard itself then? i am in need of desperate help! thanks! i also have 256 mb 133 SDRAM as well!
If you're whipping the processor in and out, check that it's firmly seated. Why did you need to clear the BIOS in the first place - is there a history to this that might help us. Otherwise, do as jimv7 says, but cut your system down to the barest necessary to start up by disconnecting any accessories that are not essential. Watch for any onscreen messages however brief they may be (I suspect you're not actually getting that far, but just in case!). Ensure that your motherboard isn't shorting the case (no reason why it should, unless you have a stray earthing or other lead rolling around, or perhaps a lost screw underneath?).