Help with pc issues

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24 Feb 2013
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82
Hi all.

My son has a pc with the following spec:-

I7 930 water cooled
Gtx 1060 gigabyte g1
8gb 1600 ddr3

Before Christmas he was running the same pc but with a hd7770 and an older psu. Before we added a new psu and his gtx 1060 everything ran fine. But since we installed his new psu and gpu he has random crashes within games as well bsod and the pc stalling on windows every now and again.

I have reinstalled windows, changed his hdd, reset bios to default, tried my gtx 970 in his pc, ran memory tests, cpu stress tests, checked temps on all components etc and the pc is still having the same issues.

My only thought now is that his new psu may either be faulty or not working properly with the demands of his pc. The psu is an Oem CiT 550w. I know this isn't the best psu.

Any help at all would be really appreciated. If anyone thinks it could be the psu I will try a new one.

Cheers.
 
what was the old psu as this can help give a comparison to wether the new one is equivalent, better or worse quality. Any reason the PSU was changed in the first place
 
Thanks all for feedback.

His old PSU, I don't have it anymore but I know it was a cheap 500w Antec. Reason for getting the new one was that his old PSU didn't have a 6+2 pin for his new GTX 1060.

The problem I have now is I delved into his BIOS yesterday and reset settings to fail safe defaults and since then he's getting a blue screen saying bad system config. Does anyone know what settings may have changed within his BIOS which is causing this new error on loadup? Failing that I will have to reinstall his windows again and then try my PSU in his.

Cheers again for the help. The GTX 1060 was his Xmas present so am really wanting to get this working for him as soon as I can.
 
If you've reset the bios defaults, is it possible the SATA mode has changed? maybe from AHCI to IDE or Raid? Worth checking before you need to do a rebuild.


Shame you got rid of the old PSU as you can buy molex to 6+2 pin PCIE connector for a few quid and i would have thought the Antec PSU would be better quality the Oem CiT (I'm no expert at PSUs), I also suspect your 1060 to be more power efficient than a 7770.
 
What are the specifications on the CIT supply.
Some of the earlier supplies used a split power rail, e.g 15A, 15A.

In a less expensive supply this may not distribute power equally between motherboard (PCI Express slot 6.5A, CPU 12A+) and PCI-E lead 12.5A. Quite easy to overload one or both rails.
Later models claim a single output, however this is likely to be rated at room temperature 20C, when sucking hot air from your case it could be up at 50 - 60C resulting in a significant drop in output.

When do the failures happen? Idle desktop, CPU load (prime) GPU load (3dm), Combined load, random gaming etc.

Is the air extracted from the PC cool? (no more than slightly warm) Common with twin fan GPU's to dump all the heat into a case.

Bios reset as above likely to be the SATA mode has changed so should be a quick fix.

Any known issues with motherboard compatibility with later PCI-E, is there a bios update available. Guessing it's an older board if on s1366.

Are the CPU temps ok, you didn't get an airlock during the install of other parts?

Have you run a memory test, Memtest86+ or similar for a few passes to confirm all is well.

Are you using premium DDR which needs a little extra voltage?

Were you running an overclock? Could be your previous OC is no longer stable with additional load on the board.
 
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