Help with system... no video (or post?)

[eNforcer]

I can usually troubleshoot things pretty good but I'm stumped on this one.

Specs:

Motherboard: Asus PK5-E Wifi/AP
CPU: Intel Q6600 (G0 Stepping)
Ram: OCZ Reaper HPC 2GB (2 x 1GB)
Video Card: EVGA 8800GTX
Powersupply: OCZ GameXtreme 700w

What happens is that it turns on, fans spin and everything but no visual posting and no video period. I stuck my x1900 xt in here and it did the same thing.

I have tried:
- One stick of ram, in all the slots, and then the same for the other stick of ram.
- Pulled all my hardware and reseated everything and reapplied thermal compound etc.
- Cleared the CMOS numerous times even pulled the battery and let it sit while I was at work for 7 hours.
- A different power supply; OCZ 520w Modstream
- A different LCD

Only thing that I have done that may have something to do with the problem is that I held down the power button to shut down last night. I was really tired and just wanted it off ASAP... it was dark and the LCD was turned off.

So is something dead? It's not the video card or ram, or PSU.. I'm thinking the CPU probably. I don't have another S775 cpu to test, or another S775 Motherboard .

 

[engiNURD]

Do you hear the POST beep, or any beep codes?
Did you try another PSU?
Did you try a barebone setup OUTSIDE of the case, on a cardboard box?

 

[Shmuckety]

Is it new? Could be a bad motherboard.

 

[eNforcer]

Do you hear the POST beep, or any beep codes?
Did you try another PSU?
Did you try a barebone setup OUTSIDE of the case, on a cardboard box?

I have not tried it barebone like you say, but I could. And yes I have tried another PSU. I do not hear the POST beep, but if I unplug the PCI-E power from the 8800GTX then I get a long beep.

Is it new? Could be a bad motherboard.

It's about 4 months old now, it has been rock solid stable until this happened yesterday.

 

[Outamyhead]

probably the board, next would be the PSU, after that I would start taking things out one by one and trying after each piece is out.