Recently New Built Computer

Ok, so I ordered all the parts I needed from SCAN, and took the time to build myself my 1st computer ^^

The building went fine, but for some reason, I have random shutdowns.

At first I thought, something is overheating, but after testing and monitoring both the gpu and cpu and finding no errors, I am thinking otherwise.

My rig is this.

Motherboard: Gigabyte GA-790FXTA-UD5
CPU: AMD Phenom II X6 1090T Processor 3.2ghz
Ram: Corsair 4gb
GPU: ATI Radeon HD 5770
HDD: 640gb seagate 7200rpm SATA III
PSU: Powercool PC-950AUBA-B 950w
OS: Windows 7 Ultimate (legit)
Case: ThermalTake one, has 1 large 220mm fan at the top(exhaust) and 2 120mm fans front and back, intake

I really don't know what is causing the issue, If i have missed anything please tell me and i will add it.

8 answers Last reply
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  1. I am suspecting you PSU as the culprit in this case as its not of a reputable quality brand like corsair, antec, xfx etc etc.
  2. That's what I am thinking, are there any tests i can do to be sure of this?

    I don't want to throw away money on a psu if its not the problem ^^
  3. just ran some tests

    CPU idles at 30C and under load averages at 40-45C
    GPU idles at 35-40C(depends how cold my room is) under load can be from 50-60C
  4. PC shutdown last night, randomly, after checking the logs, I concluded that neither my GPU or my CPU overheated.

    Can anyone help me? :(
  5. Sorry i may sound like a noob here lol, but what is RMA?

    Also I bought it a while back so will that affect it.

    And thirdly my other psu is only 400w so i dont think it will power anything lol
  6. A 5770 only needs about 90 watts. Unless your 400 watt PSU is a total piece of crap, it should power your system long enough to test it.
  7. Would it not be more effective me spending the extra £20 and going for say an 850w cosair rather than a 650w?
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