My build won't even POST! Please help!

My new build won't even post after I've put it all together. I push the power button and get absolutely nothing.

I did get the fans to spin one time. There was no RAM or hard drives plugged in. Once I plugged in a stick of RAM it wouldn't start again. I took out the RAM and it still would not start. Right now no matter what I plug in or take out, it does not work.

These are my specs:


The Sandy Bridge i3 2120

Cooler Master Elite 371 Case

I've tried an Ultra 450W Power supply (http://www.compusa.com/applications/SearchTools/item-details.asp?EdpNo=1147665&CatId=1078) and a Thermaltake 430W PSU which I got from Best Buy because I suspected the psu was the problem.

BIOSTAR H61MGC Intel H61 Motherboard

1 stick of 4GB Visiontek RAM - 240 Pin

I'm reusing a 200GB Seagate Hard Drive from an old laptop

XFX HD-677X-ZNLC Radeon HD 6770 Video Card

Stock CPU Cooler

Things I've already tried:

First, I did absolutely everything in this thread:http://www.tomshardware.com/forum/261145-31-perform-steps-posting-post-boot-video-problems . Nothing worked.

Swapping the PSU. I've tried both Ultra 450W Power supply (http://www.compusa.com/applications/SearchTools/item-details.asp?EdpNo=1147665&CatId=1078) and a Thermaltake 430W PSU which I got from Best Buy because I suspected the psu was the problem. This resulted in no change. I know it's a possibility that I just recieved two dead power supplies so when I go to return the Best Buy one I'll buy a new one.

I might try a power supply with a lower wattage. Could somebody please help me? I'll post pictures if necessary.

Also: I'm sure that nothing is shorting the motherboard because I tried breadboarding it on top of some styrofoam.
Thanks.
5 answers Last reply
More about build post help
  1. make sure you use the case stand offs.
    http://www.youtube.com/watch?v=rqqxqE6iswU
    check that the i\o shield not shorting out the mb.
    make sure the 24 pin and the 4/8 pin atx plug in connected.
    it be near the cpu or one edge of the mb.
  2. smorizio said:
    make sure you use the case stand offs.
    http://www.youtube.com/watch?v=rqqxqE6iswU
    check that the i\o shield not shorting out the mb.
    make sure the 24 pin and the 4/8 pin atx plug in connected.
    it be near the cpu or one edge of the mb.


    I tried breadboarding it on styrofoam so I'm sure nothing is shorting out the motherboard. Both the 24 and 4 pin atx plugs are connected.
  3. what the part number or info of the ram..most new intel mb need 1.5v ram ddr-3 10666-1600 speed for stock. on some mb the 1800 and faster ram wont work. also check that there no bent pins under the cpu and the cpu seated.
  4. smorizio said:
    what the part number or info of the ram..most new intel mb need 1.5v ram ddr-3 10666-1600 speed for stock. on some mb the 1800 and faster ram wont work. also check that there no bent pins under the cpu and the cpu seated.


    This: http://www.compusa.com/applications/SearchTools/item-details.asp?EdpNo=1636640 is my RAM. I don't think that the ram is the problem though because I would hear a beep code at least. It should still work without ram installed. I checked the cpu as best as I could, it looks like there are no bent pins.
  5. You should make sure you didn't short the motherboard itself.
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