New build won't boot.

[djb0262]

Hello,


I just finished installing all my hardware on a new system. However, when I plugged in the power cable and go to boot it up, it comes on for a quick 2-3 seconds. Doesn't Post, just fans and LEDs come on for a short time.

I thought it might be the video card, so I changed it out for an older one that works fine in other systems. It boots up fine, except for no post yet again. And the screen doesn't show anything.

System:
Processor - AMD Athlon 64 X2 5600 Brisbane 2.9GHz
Video Card - PNY Nvidia 9800 gt 512mb
Motherboard - GIGABYTE GA-MA790X-UD4P
Power Supply - Thermaltake TR2 RX Series 450W

Second video Card - BFG Nvidia 8400

Any help will be greatly appreciated.
Thanks.

 

[ehanger]

Did you remember to plug in the 4pin CPU power cable?

 

[djb0262]

Yes, went through and made sure everything was securely in place.

 

[nickhoff]

Did you read the section in your motherboard manual about the placement of RAM? It sounds to me like your RAM is acting up. If you have a tri chan kit or dual channel kit there is a special way to place the ram, usually the colored slots on the mobo, not the ones closest to the cpu.

 

[evongugg]

New build won't post checklist

http://www.tomshardware.com/forum/261145-31-build-post-checklist

 

[evongugg]

Take out the second video card and try again.
Test the PSU or try a different one.

 

[djb0262]

Tried different PSU, same thing. All my RAM is hooked up the way it says to in the manual.