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Specs:

Motherboard: MSI 760GM-P23 FX
Integrated graphics (on MoBo)
CPU: AMD Athlon II x4 640
RAM: GeIL Pristine 4GB DDR3
Case/PSU: TOPOWER TP-4107BB-400

Is not POSTing, no video output, no beeps. When RAM is removed, 3 beeps. I have tried removing and replacing the CPU and all the power cables with no change. Resetting the BIOS (by removing and replacing the battery) did nothing as well.

Is there something I'm forgetting (1st time building from components), or could one of the components be bad?

EDIT: New development: with CPU and RAM installed correctly, it will turn on lights and fans (still no POST) and after running for a minute or so it will turn off and the PSU will make a buzzing noise that ceases only when unplugged.

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Sounds like a dumb question, but did you forget the 4-Pin motherboard power? its separate from the ATX 24-pin one. Whenever this happens to me, it always seems to be i forgot to hook that one up. –  Jared Tritsch Nov 30 '12 at 2:37
    
@JaredTritsch yes, the 4-pin power connector is attached correctly –  Nate Koppenhaver Nov 30 '12 at 2:44
    
Ah okay, nevermind about that then... –  Jared Tritsch Nov 30 '12 at 3:03
    
do the fans or any LEDs come up when you power it? if not triple check your power wiring. if still no fans, sounds like an RMA to me. –  Frank Thomas Nov 30 '12 at 4:10
    
@FrankThomas All LEDs and fans come on as normal –  Nate Koppenhaver Nov 30 '12 at 4:18

1 Answer 1

up vote 1 down vote accepted

It turns out it was a RAM issue. It boots just fine with the new stick of RAM I bought. I guess I need to stop going for the cheapest parts all the time. ☺

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Glad you figured it out. That is what I was suspecting also, but without the ability to test other sticks and such makes it difficult. –  Phillip R. Dec 9 '12 at 3:03

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