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Can a weak PSU cause a computer to constantly restart or freeze?

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November 11, 2013 8:26:06 AM

So basically, I got all my desktop parts and put them together, but my desktop will spontaneously restart with no warning at all at random times (usually 5-30 minutes into using the computer). Here are my computer parts:

- AMD FX-6300 3.5GHz 6-Core Processor
- MSI 970A-G46 ATX AM3+ Motherboard
- Patriot Viper 3 16GB (4 x 4GB) DDR3-1600 Memory
- Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive
- PowerColor Radeon HD 7850 2GB Video Card
- Thermaltake VL80001W2Z ATX Mid Tower Case
- Corsair Builder 430W 80 PLUS Bronze Certified ATX12V Power Supply
- Dell E2014H 19.5" Monitor (Two of them)
- Windows 7 (64 Bit)

So I have a 430 watt Corsair PSU, but I was wondering two things (a) is that too weak for my PC and (b) if it is, could that be the reason my computer will randomly restart without warning and sometimes just freeze while using the computer?

I know that there's nothing wrong with the temperature and the software since I've done virus scans and have done various tests to make sure there's nothing wrong with it. I've also re-applied my OS to my PC so I know that there's nothing faulty with that either. I've limited the problem to hardware and of the hardware, I'm narrowing it down to it probably being the motherboard, processor, RAM, or PSU that's the problem (and I think it's the PSU since I've seen other people have similar issues relating to the PSU)
a b à CPUs
November 11, 2013 8:50:39 AM

Hello... what will your motherboard auto detect your memory speed at? as a test down clock your memory, say 1333 and see if that will help.
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a c 153 à CPUs
November 11, 2013 9:20:44 AM

No your PSU problem, it is the most likely from the MB.

Your PC total power consumption is not more than 350W, CPU 130W (if full loading), GPU 106W, MB <50W, HDD+ DVD+RAM+fans <100W (total is not more than 80W).
FX6300 http://www.hardwarecanucks.com/forum/hardware-canucks-r...
HD7850 http://www.guru3d.com/articles_pages/amd_radeon_hd_7850...

Your MB has 4+1 power phase, I don't recommend use it with the fx cpu. You can read more from here. http://forum.overclock3d.net/showthread.php?t=52135
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November 11, 2013 9:22:49 AM

- turn off any overclocking you might be doing
-reboot with no bugcheck code might indicate a faulty power supply
-reboot with no bugchcek code while playing games might indicate a under powered power supply to the graphic card
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a c 741 à CPUs
November 11, 2013 10:33:23 AM

That motherboard is known for VRM issues. I would suspect the MB to be the cause. Your PSU is kinda borderline, IMO, but still capable. Turn turbo off on your CPU and see if that helps.
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