Question PC won't power up

Jun 4, 2020
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I am wondering if anyone can help here. My pc with a Gigabyte GA-X58-UD3R won't start. When I press the power button it will momentarily power on then just switch off leaving just a green and orange led going. I took the psu to a local computer store and they tested it. Tested good with a psu tester. No load i expect so unsure if it could still be the issue.

The other funny thing is if I remove the graphics card it seems to boot up normally. But obviously I can't verify what the screen might show as the monitor plug needs the g card. I tried another g card and the issue remains. Any ideas would be greatly appreciated. Thanks
 
Jun 4, 2020
2
0
10
Unfortunately never got any help so I took the psu back to the shop to retest under load and it failed. Luckily under warranty. Gave me a new one works good again