Troubleshooting PC Issue. Unsure of cause.

TempusMori

Reputable
Aug 28, 2014
2
0
4,510
So recently I built a friend a computer and it worked for about 3 days before it refused to start again. I removed the graphics card and then it worked so I tested the graphics card in my PC and there were no issues so I put the graphics card back in the PC and it worked fine. Then the same issue happened except the graphics card didn't work anymore. So I assumed the graphics card was faulty and got it replaced and the exact same thing happened again(worked for 2 days, uninstalled/re installed graphics card again) and now it won't start even without the graphics card. Im unsure of how to find the cause of the problem but I suspect the Power supply. The components are as follows:

■ Intel Core i5-4670 3.4 GHz, Socket 1150, Haswell

■ Asrock Fatal1ty H87 Performance Motherboard, Socket 1150, Intel H87, 4xDDR3, 2xPCIe-16, 2xPCIe-1, VGA, DVI, HDMI, RAID, ATX
■ A-Data 2x2GB DDR3-1333Mhz

■ CM V Series V750S, 750W ATX PSU, Active PFC, Black, Semi-Modular

■ Seagate Barracuda 1tb HDD

■ Asus GeForce GTX 660 Video Card, 2048MB, DDR5, PCIe-16, SLI ready


I was just wondering if someone could help me troubleshoot this problem.
 

TempusMori

Reputable
Aug 28, 2014
2
0
4,510


It's still running on the default Bios and im not sure how to update if I cant get the PC to start.