New Pc problems

[dippindotz]

So I built my pc 2 weeks ago. I've been noticing some problems since then. 1. Sometimes, when i'm browsing the web, it just freezes. The whole computer. I can't do anything. Sometimes its so bad, I have to turn it off from the power button on my case. Numero Dos, It shuts off randomly. This doesn't tend to happen when i browse the web, but when I play games. It just shuts off. I check my temps, and they're in the 30-40's when I game. It happens the most when i try to join servers on Garry's Mod. I checked for viruses, but none showed up. Number 3, sometime in sleep mode, it doesnt wake up. I have to push the power button on my case many times to get it started. Most of the time it just wakes up, but not all the time. Any clue? Here are my specs

 

Fx 6300

Gigabyte ga-970a-ds3p

Kingston 4gb 1066mhz (Soon to be upgraded to better memory)

Gtx 630 (From old build, gonna get either 7850 or 7870)

Kingston hyperx 120 gb ssd

Hitachi 500gb hard drive (from old pc)

Xfx 550w psu

Win 7

[Tmh85]

Possibily sounds like a PSU issue

[AlwaysFSX]

Faulty power supply?

[dippindotz]

It just happened again. Do I email Xfx and see what they can do?

 

Any idea what the problem may be for the psu?

[Leonius]

did you run stress tests on the system after you built it? like prime 95 and memetest? PSU problem is likely cant tell what would be brokein in there specificly though. But might also be the hdd possably the ram?

I actually had the same problem once and it turned out to be a defective motherboard...