New mainboard installed

Hello,

I have just purchased and installed an ASrock G31M-S R2.0 with an Intel Dual core E5200. The mainboard uses DDRII which is compatible with that which I have 2GB xR2 333Mhz 667 times 2, 4GB.

Now to the problem; The first time I turned it on everything went fine, I was able to re-install Win7 Pro 32Bit. After I had all the configuration done in Win7, meaning it was running for over two hours straight. Upon running it down for the second time that is when the problem started, yet I am not conviced it has to do with OS.

When I start the machine and let it run, it takes between 5 and 1 minute before the Monitor goes black, Standby mode. Upon restarting I simple went into Bios and waited, low and behold, again the monitor went into Standby, yet the machine is still running, whether it has hung or not I do not know as I can see nothing, yet I am guessing, yes it hung.

I have confirmed the CPU settings. I have re-paste the Heatsink 3 times, each time varying the amount, at this point very thin layer. I have disconnected HDs, CD-Rom, USB and audio connection cable inside and out. Regardless of what I do, the monitor goes into the Standby Mode. So, before you ask, I will just say, yes, I tried a different Monitor with the same results.

If there is some relation, the reason why I bought the new mainboard was simply because the old mainboard, basically did the same thing with the difference that it just shut the machine down.

If I let the pc sit for about 5 minutes then I can start it up again and you will actually see the boot sequence........ for 5sec upto 1 min., then the games start all over again. I am using the same CPU and Ram from the other mainboard.

I would sincerely appreciate some tips, other than buy a new one, which I had just done. LOL ;-) Thank you very much