Troubleshooting My Deceased Conroe System ...

[Midnight Rambler]

Scenario : System won't POST, no beeps, no fans, no nothing ...

Relevant Specs :

Core 2 Duo E6600
Gigabyte EP35-DS3R

Tried so far :

1. Removed CMOS battery; then replaced CMOS battery with new one
2. Multiple good PSU's - incl. 2 Corsairs (rebadged SS's); swapped cords just for fun
3. Multiple good kits of RAM; I have several of these 2 GB kits, tried diff slot arrangements
4. Two good vid cards
5. Removed HSF (Zerotherm BT92 (?) "butterfly" + MX-2). All looked OK, even after almost 5 years. Cleaned everything and re-pasted.

I don't have a spare CPU or mobo to swap those components IN/OUT. Is there anything I missed that doesn't require these swap-outs ??? No visible damage of any kind to the mobo, physical or electrical.

Thanks ...

 

[denis280]

Power button.?

 

[Arcanedeath]

could be a grounding issue, try just the board, cpu, 1 stick of ram, and the video card outside the case on some cardboard or a static bag and see what happens with a known good psu.

 

[RadiclDreamer]

Power button.?

Yeah, try removing the lead that goes to the power button and just short it with a screwdriver, makes sure your switch isnt kaput.

 

[Midnight Rambler]

Thanks for the suggestions so far, but no go.

This new system is in the case that the E6600 system was in, so the switch is definitely OK. Although I can't believe I forgot to check it ... well, I guess I just checked it the hard way.

Also, good on any ground issue. The bare necessities of the system are set up on a static mat on my workbench.

I really had thought it was a CMOS problem initially. Now I think I probably have a dead mobo. Haven't seen too many bad CPU's and this one was babied most of the time.

Where to get a P35 board ...

 

[lakedude]

Thanks for the suggestions so far, but no go.

This new system is in the case that the E6600 system was in, so the switch is definitely OK. Although I can't believe I forgot to check it ... well, I guess I just checked it the hard way.

Also, good on any ground issue. The bare necessities of the system are set up on a static mat on my workbench.

I really had thought it was a CMOS problem initially. Now I think I probably have a dead mobo. Haven't seen too many bad CPU's and this one was babied most of the time.

Where to get a P35 board ...

I agree with your assessment. Haven't seen a bad CPU since the Cyrix days... Most likely MB issue.