My PC randomly shuts off and turns back on whenever it wants

Nzxt Hale90 white 80 plus gold 1000 watt...
February 12, 2014 at 17:30:45
Specs: Windows 8 64 bit, AMD 8150 3.9 / 16 gigs
PC keeps shutting off randomly, it might turn on in a minute or take days to turn back on. Also sometimes when it doesn't want to turn on the mono lights stay on like normal. Could this be low amperage?

Specs :
AMD 8150 stock speeds
2 Asus 7950 on crossfire
16 GB corsair dominator ram
1000 w nzxt hale 90
corsair h80 cpu cooler

Edit: Turned on and it won't detect my keyboard or the mouse.

message edited by slaystation2454

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February 12, 2014 at 23:38:37
"the mono lights stay on like normal"

What the heck are they?

Try changing the PSU

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February 13, 2014 at 07:46:17
If the link below is for your PSU then you have ample power.

I would look at overheating. Download and install HWMonitor and run it in real time to see both the temperatures and the voltages. All voltages should read +- 5% of the stated value. Get HWMonitor at the link below. Post results.

The monitor light is showing there is power to it. Usually if no signal do may see a message on the screen stating that. Light may be Orange when no signal.

message edited by OtheHill

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February 14, 2014 at 10:07:06
My bad i meant mobo lights

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Related Solutions

February 14, 2014 at 10:09:07
Well, the reason i think its not its enough power is because none of the peripherals start and it kept sending me straight to the BIOS saying it couldnt detect my keyboard. Also no way to check the temps as it wont even turn on past BIOS.

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February 14, 2014 at 12:34:09
"PC keeps shutting off randomly". I would take that to mean it runs sporadically.

Open the case with the computer unplugged and reset all the cables, cards and RAM. Snap all the RAM sticks in and out 4 or 5 times each.

Try using a PS/2 keyboard if your computer has the port for it.

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February 14, 2014 at 13:49:58
I already reset all the cables etc and also tried the RAM. The peripherals arent the problem as they have been working a day ago nonetheless i will try another keyboard and get back to you.

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February 14, 2014 at 13:55:55
Tried different keyboard and mouse and still wont detect then.

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February 14, 2014 at 19:08:38
Note that you can read your temps in your BIOS as well as your input voltages. Post these when you first turn it on and after sitting on for 10 minutes.

Has this system ever worked properly? If it is a custom built system, especially a new one, pull it all down and bench test it.
Use only MB, CPU, one stick of RAM, onboard graphics or one video card, at first, then add one component at a time. Add the second graphics card last, after Windows and drivers are all set up.

You have to be a little bit crazy to keep you from going insane.

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February 14, 2014 at 20:47:23
I meant the connections inside the case, not the external hardware. Did you try a PS/2 keyboard?

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