Fresh out of ideas to repair this system, need some tech help please

Mar 21, 2018
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Hello,

My secondary system went down over 6 weeks ago. I have been researching online, trying various hints and tips to repair this system, I am hoping you folks can provide some guidance.

I believe I have checked/replaced/re-seated everything. Dug around online but found nothing that helped.

When I start the system, the lights and fans turn on, I can push the CD eject and it does, there are no error beeps and no display output to the screen.

The system is a
Windows 7 Pro 64 bit OS,
CPU: Intel i7
RAM: 24 GB G.skill DDR3-1600
Video: Gigabyte HD6870
Motherboard:Gigabyte GA-X58A-UD3R Motherboard
I replaced the Video Card with another on-hand working one.
Swapped Ram around, even left the RAM out
Swapped HDD's, then when that didn't help removed them
One forum suggested a possible Power Supply issue so I bought a brand new EVGA 500W, Still no difference
Re-seated the processor and CPU cooler, used fresh thermal paste on it.


One thing I noticed.. on the motherboard there are these LED lights, I don't know if these were lighting up the entire time or just started when the issues started. These seem to be (and are located just below where the 6 x Ram Slots are)
1 NB Phase LED these are lit Green-Orange-Green-Orange-blank-blank-blank

2 DDR Phase LED these are lit Green-Green-Orange-Orange-Red-Red.

Any help or advice would be greatly appreciated. Seriously I am out of idea's.
Thank you.
 
Mar 21, 2018
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You nailed it! Front USB port damaged, once I unplugged the header, System boots!! You are fricken Awesome! Many thanks for your expertise.

Cheers.
 

fagetti

Notable
Mar 1, 2018
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yep these usb ports kill desktop pc:s like theres no tomorrow. Nice that your motherboard had short circuit protection, otherwise it would been goner.

Im not expert of any kind, i tried to troubleshoot few laptop motherboards for hours and after some components got destroyed By my mistakes i look usb ports..... ofcourse bent pins and it was all for nothing :D