(Solved) PC powered off suddenly

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Grufil

Commendable
Mar 3, 2016
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Hi,

My PC suddenly powered off. First it didn't show any sings of power going through. I unplugged the outlet cable for a night and when I woke up this morning I gave it another go and it did turn on.

I'm suspecting faulty PSU, however it's not even one year old so I'm not completely sure. This same thing happened couple of months ago but PC turned on after I just replugged the power cable, so I thought it was just a blackout as it was snowing heavily outside.

This happened after I stopped playing Assassin's Creed Unity and started doing SLI stability testing with furmark as I had some artifacts going on with ACU. I haven't seen any artifacts in other games nor in furmark before. PC powered off just seconds after I started furmark test.

I haven't overclocked anything.

Specs:
Asus Z87-a
1000W Fractal Design Newton R3
Gigabyte 3xwindforce GTX 780 Ti 2way-SLI stock
intel i7 4770k stock
G.skill Ripjaws X series 2133MHz 4x4GB ram
DVD-drive
2 samsung HDD's
Asus Xonar Essence STX
Nanoxia Deep Silence 5

Any gurus here who could help me? I'm ICT-technician myself so I have some experience but I would be happy to have any advice from someone who's more experienced in this case.
 
Solution
G


It turned out that my motherboard was faulty and not the PSU. As first problems were exactly like PSU ones. Later on some funny stuff started happening such as cursor stutter when HDD was reading and once screen just scrambled. After I bought a new motherboard I haven't had any similiar problems to this day. Sorry for late reply.

Still thanks for Benjiwenji for giving good troubleshooting advices.
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Benjiwenji

Benjiwenji

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Dec 8, 2013
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Couple of things.

1st suspect - Power issue. Your PSU is a good one and has 960w, which is sufficient. Could it be a faulty unit?

Perhaps it is your house's electrical issue, have you tried a different outlet or use a UPS?

2nd- RAM compatibility, did you buy all 4x4 in a single package, or two 2x4? Have you tried reseating your RAM sticks and enable XMP profiles in BIOS?

3rd- GPU/SLI issue. I am less familiar with SLI but you can try running a single 780 ti at a time to test each.
 
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G

Grufil

Commendable
Mar 3, 2016
3
0
1,520


Thanks for the answer!

1st - Faulty unit is exactly what I had in mind and already asked seller for warranty service ticket. Also I have to try different outlet. I also could ask around for any known electical issues.

2nd - RAM should be compatible as they have been working for couple years just fine. However I bought two 2x4 packages. I could try reseating them and test enabling those XMP profiles.

3rd - GPUs shouldn't be an issue as I have confirmed that they are working fine singe at a time without artifacting or any other faults.

I'll let you know when I do all this.
 
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G

Grufil

Commendable
Mar 3, 2016
3
0
1,520


It turned out that my motherboard was faulty and not the PSU. As first problems were exactly like PSU ones. Later on some funny stuff started happening such as cursor stutter when HDD was reading and once screen just scrambled. After I bought a new motherboard I haven't had any similiar problems to this day. Sorry for late reply.

Still thanks for Benjiwenji for giving good troubleshooting advices.
 
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