Motherboard problem

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Joined
2 Nov 2005
Posts
6
I have just built my new system but I have a problem, basically it doesn’t power up.

I have the following components:

Asrock Dual Socket 939-SATAii Motherboard
Opteron 144 CPU
2 x 512Mb Corsair value RAM
Thermaltake XP-90 Heat Pipe + Standard 90mm fan
X800 AGP graphics card
FORTON Blue Power 500W Power supply

I know the graphics card is not the problem as it works in another system I have.

When I attach the main power cable to the motherboard and turn on the power all the fans power up but no boot.

However, whenever I attach the 12V connector it is like the motherboard is short-circuiting.

The motherboard is balanced on 6 headers only one of which I did not manage to screw in, but it is still under a hole. Should I try removing this header?

Also, Could the 12V connector be a problem? I notice it goes in two ways but neither seem to work.

Could it be that I have applied too much thermal paste to the CPU and heat sink and this is causing a short circuit?

Finally, I thought it could be the reset switch connector wired wrongly?

Has anyone else experienced this sort of problem?

If you can offer any suggestions then I appreciate it.

Thanks,

Chappers
 
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