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Mobo doesn't POST - Page 3

post #21 of 26
Maybe you shorted the motherboard.
I would take everything out of the case and put it back in very carefully.

Watch the stands on the motherboards trail.
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post #22 of 26
Thread Starter 
Quote:
Originally Posted by Albatross1991 View Post
Albatross:
".... with main ATX back on disconnect the 8 pin CPU connector."

Revolution:
"I didn't have the 20+4 plugged in when i did the paperclip test. How would i do that test and keep it plugged into the system?"

Do not understand your response. The logic I am following is to remove different load paths from your power supply. Then closely observe for different indications when you press the power-on button.
Sorry must have misunderstood you...I took out 8 pin CPU connector and started it and no change.


Quote:
Originally Posted by Albatross1991 View Post
I am not expecting a successful boot but merely looking for any changes in your fail indications. My next suggestion would have been to remove your graphics card and give that a shot.

Lacking a voltmeter or spare parts, you can either troubleshoot or take your best guess. Here are some for your consideration.

1. Problem began when you replaced a dodgy PSU. RMA the new PSU.
2. The original dodgy PSU damaged something. RMA graphics card or RAM.
3. Unlikely 2 MBs fail in same way. But new PSU killing them. RMA PSU & MB.
4. Other periferrals dragging PSU down.
5. Build error. Bent pins, bad connectors, header issue, shorted motherboard.

Removed graphics card and tried starting it up and still no success...thanks for all the help though!
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post #23 of 26
I know you said you checked this already but I probably should have added this one to the list anyway because the symptoms were identical to yours.

I had torqued the CPU HSF down too hard. The damage to the MB CPU socket pins were obvious, very easy to see. The CPU appeared flawless. But it turned out that I had destroyed both DFI Black OPs MB and a Wolfdale.
post #24 of 26
Thread Starter 
well, when I RMA'd the motherboard the first time, I got the same one back, because there were no defects found with it, so I know for sure it is not the motherboard (keep in mind that it was doing this before I sent it in to be RMA'd). So I'm starting to lean more and more towards a defective PSU.
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post #25 of 26
Well, it could be anything. You need to use a DVM and check all the voltages, then unplug everything, even the RAM, and see what the beep codes are. Many TIM compounds are conductive (like Artic Silver-5) and can short out a CPU socket easy. The PC speaker technique is very good too! My mobo's all came with a little beeper speaker.

Shorts under the Mobo to the chassis, all kinds of reasons a system won't work. So, starting from scratch, reset CMOS with the jumper etc... remove everything except CPU etc. is the only way to start to troubleshoot serious problems.


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post #26 of 26
Thread Starter 
Update: got a hold of a friend's 500w off brand PSU, and it did something different! It still didn't start up at all, but instead of one LED lighting up, all of them do! I don't know where this puts me, but it's something different (which is what we were looking for)
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