CPU: i7-2600
MB: ASUS B75M-A
GC: Gigabyte Radeon R9-290
OS: Windows 8.1
Everything was installed, minus a wifi card. I had to bring it by a repair place because it crashed immediately after I powered it, due to a short caused by the case fan being installed wrong. Then I had it running off ethernet. Then I got a wifi card and installed it. Then it would crash sometime during startup, especially when it got bumped. I moved a power supply cord that ran behind the motherboard and I managed to get it to stay on. But when I played a game, the CPU fan would get loud then, BAM it crashed. Then it would try to start again. I haven't changed anything, but since yesterday, I can't even get it on for more than 30 seconds before it shuts off, then turns on, then tries to turn back on repeatedly. If you can point me to the problem, I'd appreciate that.