Over the past two nights I have had my PC stop working with no explanation, what happens is that while I am listen to the radio on the Internet the computer stops working, the screen goes black and the hard drive light comes on and stays on.

I recently upgrade the CPU to the following.

Motherboard:

CPU Type DualCore Intel Pentium D 920, 2800 MHz (14 x 200)
Motherboard Name ECS P4M800-M7 (3 PCI, 1 AGP, 1 CNR, 2 DDR DIMM, Audio, Video, LAN)
Motherboard Chipset VIA P4M800 Pro
System Memory 1024 MB
BIOS Type AMI (10/19/05)
Communication Port Communications Port (COM1)
Communication Port ECP Printer Port (LPT1)

Is there any thing in the way of changes that I should have done. I have check the ECS website to find a bios upgrade but I am unable to find one.

Any advice would help me to under stand the problem.

Thank You.