Upgrade P4 3.0 ghz to C2D E8500

I recently upgraded my system to with a Gigabyte MB GA-EP45-UD3L, and cosair ram. I put my old P4 in the system and everything runs great. I wanted to upgrade my processor so I went with the E8500. This is compatable with my mb and I updated the bios. I installed the chip and started it up. On the initial boot I got a blue screen of death for about a half second, not long enough to read it, then the computer restarted itself. It booted up and was okay for about a minute then crashed again and restarted. Does anyone know what could be the issue here? I have tried this multiple times and the same thing keeps happening. I reinstalled the old cpu and everything works fine, no issues.

1. Clear CMOS.

2. Did you increase RAM voltage?

3. Did you flash BIOS from Windows?

4. Did you install the DES software?

^Why don't you clear CMOS and see?

Software incompatibility. You wouldn't happen to be running any old copies of Zone Alarm, would you? Old versions of ZA do not get along well with the XD bit feature found on newer CPUs. If your old p4 was a 530 non-J model, it would have lacked this XD bit feature. If you can turn off execute disable bit in the BIOS, try it and see if the computer then will stay running after starting windows.

Are you talking about the Autoexec.ext file? Dosen't matter which method. The QFlash will work fine.

Can you boot into safe mode? It may be an issue with the chipset drivers for the motherboard.

The real question here is how in the world did you get that socket 478 P4 to run on that socket LGA775 P45 mobo

I think that's your problem.

Clean install of windows with the new cpu.