PC turns retarded, shuts off after few seconds, turns back on

Yes I know I edited above, within 1 minute of posting!
But you were too quick.

edit:

Now a page back

Oh and one more thing I have noticed, it is that my MB does not beep at all when I hit the pwr on, it never beeps, it used to beep every normal start up.

Something defective that's causing the MB to not beep may be the problem?

Or is that the MB itself?

Thanks for the update

Hey guys, im having the same problem as of a few days ago.. Ive removed and disconnected everything except for CPU, CPU fans, and PSU and i am still getting the random shut down after about 3 seconds of being turned on... I am using 2 AMD opterons and they are 940 pin which are hard to come by especially for cheap so i cant really test different CPUs. The MB is a tyan and is not cheap to get with 940 pin either. My next step is to try a diff PSU however i am using a thermaltake toughpower 700w and i doubt this is causing the problem. I guess what im getting at is.. Someonedying, if you figure out if it is either your CPU or your MB causing this problem please let me know so i can try replacing the culprit.

There is a small speaker on the motherboard that allows this beep sound.
Some bios and motherboards allow or disallow this speaker emitting sound. And some motherboards have this speaker external (ie plugged in near the pwr;rst;led connectors)

@balzonya

If you are yourself trying to benchtest your system (for a non starting issue)
I would recommend PowerSupply as number 1 (with someonedying, this was his first step before even posting here, 700watt or not)

Ok I have put everything else on a new motherboard ( except for ram, got different sticks because my other ones are not compatible ) and my motherboard does not shut itself off now or reset; now it just wont put anything to my monitor.

Holding in the power button for 3 to 5 secs will force turn off

But, those ram(s) are they new?
I'm still thinking the power supply (the new one) is at fault

You will need more components to test and swap out

Have you tried the Bench Test option? (ie Motherboard out of case)

Yea, I have tried three motherboards now bench testing with all the same hardware and Im using the ddr2 pc6400 800mhz 2gb sticks for the new(foxconn) MB, and Im using the pc5400 667mhz 1gb sticks for the other 2 MBs


(Tried using my brothers 7950GTX vid card and still got same response to monitor)

Tomorrow I will get to use a friend's CPU on my MB to see if it will make any difference, and then I will try my stuff on his MB, will be doing a variety of swapping around things, this has gone too far >_>