PC problem after installing new CPU

pacman08

Honorable
Jun 2, 2013
2
0
10,510
Hi , I'm new here and wanted to ask about my problem , I searched it in the forum , but couldn't find topic with the same problem .
Here it goes : So i bought a new processor AMD Athlon 64 x2 dual-core 4800+ and I installed it, started my PC and it worked just fine for around 2 hours then I shut down the PC .
The next time I tried to boot up the pc it wouldn't boot :the fan started but after 3 seconds it stopped .Tried this several times .
Then : I removed the CPU to see if there's any damaged pin - It was all OK , I put it back in and started the PC and it booted , but around 5 sec. after the welcome screen ,the screen froze .
Anyway the Keyboard lights were on , I could light them on or off .I shut down the pc using power button and the next time it won't boot up .
I ejected the power cable ant put it back in , started the pc and it boot till the welcome screen and it froze again :mad: .
Now I can't even get to POST screen , after 3 sec. the fans stop working ,but when I insert the Old CPU it works just fine .
Or - Is there any chance my power supply is causing it here's the picture of my Power supply
Here's my PC info :
MB : ASUS M2N68-AM SE2
CPU : AMD semprom LE-1100 (wanted to update to Athlon 64 x2 4800+)
RAM : 1.75 GB (one stick)
That's it if anyone could help me ,I would be very thankful :S
P.S : Sorry for bad english(not my native language)
 

pacman08

Honorable
Jun 2, 2013
2
0
10,510

I tried with another PSU , but seems that the problem is something else :S
edited : Is there any way to see if the CPU is still functional