Help with Upgrading Cpu

Hello DJ,

Wow! the best advice I have seen in the web! Thanks.

Here is my problem...

I purchased a new cpu (intel core 2 duo E8400) to install on my custom system.

Here is what I have:

DFI Infinity Dark P965 - it is able to take core 2 duo lga775
Antec True Power Trio 650 watts

After performing many test, I completely stripped down the computer.

So, I have the MB sitting on the MB box.
No RAM installed
All peripherals out
No Keyboard
No mouse

Case speaker is connected.

PROBLEM: NO Beeps...

With the OLD CPU (Pentium 4 3Ghz):

-- Fan turns on but no beeps

With NEW CPU (C2D)

-- Fan turns on and off, on and off for about 3 - 4 times then off
-- reset system with pin switch and pressing power on and off while power supply removed
-- ran for a few seconds cpu with no fan. cpu DID get warm


So does this leave me with a dead motherboard?

One other thing, before all these problems, when I had the old cpu still in, when I shut off the computer and immediately try to turn it on, it would start up then stop. I had to wait sometimes for 30 minutes or more for the computer to cool down before it would start.

Thanks in advance,

Ed



Things I have done:

-- tested power supply (green to black). Fan runs. No problem