Computer rebooting constantly

acidrain · Feb 9, 2014

Hi guys,

Ok so I ended up having to re-install and while I was at it decided to rather bump up to 8.1 seeing as I was starting fresh.

Unfortunately the problem is still occurring.

My temps are as follows:
CPU 55C ( currently I'm running a memtest so thats the full load temperature at the moment )
Mobo 36C

Here's a link to the temps and voltages incase I'm missing anything suspicious.
https://www.dropbox.com/s/rml3nstf7degvuv/Pc temps.jpg

The mobo is an ASRock AM3+ 970 Extreme 4. It's my first time using this brand so could the mobo possibly be faulty?

Any other suggestions that could be causing this or tests that I can run?

Thanks

Rickster · Feb 9, 2014

acidrain said:
CPU 55C ( currently I'm running a memtest so thats the full load temperature at the moment )

Memtest does not stress the CPU, it only writes data to the memory to find faults.

LazyLion · Feb 9, 2014

Check power supply and memory. Those are the most common faults. Then motherboard and hard drive errors. Also try updating your bios.

acidrain · Feb 9, 2014

Rickster said:
Memtest does not stress the CPU, it only writes data to the memory to find faults.

ok... well cpu is reporting 100% usage so its probably something else using the cpu in any case i just assumed it was memtest.

Garyvdh said:
Check power supply and memory. Those are the most common faults. Then motherboard and hard drive errors. Also try updating your bios.

Memory busy being tested.

How would one check/test the power supply other than the figures reported by the OC utility.

I'll check the BIOS version running at the moment, but the latest bios was released November 2013 and I got the mobo a few weeks ago so surely it should have the latest running already?

Just to refresh that these reboots are very random. Mostly it runs flawlessly for days, but there are days where it does it a few times ( screen just goes black and reboots, so no error messages )

Charm · Feb 9, 2014

hmm, download a program called hard drive sentinel and make sure the drive is sitting on 100% health.
so you've done a memtest? shouldnt be the RAM then. CPU's hardly ever fail so doubt its that.

Could very well be the power supply. is it one of those no name brand jobs? ive seen faulty power supplies do weird things to computers. Your new motherboard could be needed more power, try unplugging a few case fans if you got loads.

ponder · Feb 9, 2014

Charm said:
Could very well be the power supply. is it one of those no name brand jobs? ive seen faulty power supplies do weird things to computers. Your new motherboard could be needed more power, try unplugging a few case fans if you got loads.

Best would be to only have 1x dimm, 1xHDD and no other devices (ram, hdd, dvd/cd, gpu etc) connected. Test this base septup with two different PSUs. Run a stress test and see if it still fails, if not then start by ading one device at a time, stress test and carry on like this until you find the culprit.

acidrain · Feb 9, 2014

Charm said:
hmm, download a program called hard drive sentinel and make sure the drive is sitting on 100% health.
so you've done a memtest? shouldnt be the RAM then. CPU's hardly ever fail so doubt its that.

Could very well be the power supply. is it one of those no name brand jobs? ive seen faulty power supplies do weird things to computers. Your new motherboard could be needed more power, try unplugging a few case fans if you got loads.

Doubt its the drive, its a brand new Intel SSD.

The power supply, its a vantec ( as far as it being a no name i dunno ). Tt has been powering my PC fine for years. This only started when I swapped out the motherboard. The only difference is the new mobo takes 2x 12v rails whereas the old one only took 1 but the PSU does have both rails and is properly plugged in.

I'll find a program to stress test the system but surely if it's a power supply issue, one would be able to know straight away by looking at the reported voltages which to me doesn't show any major deviation from whats required.

Lastly, if it was an issue with power supply when the system is under load, this wouldn't then explain why it happens when the system is even on idle.

LazyLion · Feb 9, 2014

acidrain said:
How would one check/test the power supply other than the figures reported by the OC utility.

I always keep a spare power supply on hand because of our erratic fluctuating Eskom power and because of all the lightning and power surges here in Gauteng. If I suspect my power supply is faulty I just swap it out and test the system with the new one. If it makes no difference, then I keep the old one on hand.

acidrain · Feb 9, 2014

Garyvdh said:
I always keep a spare power supply on hand because of our erratic fluctuating Eskom power and because of all the lightning and power surges here in Gauteng. If I suspect my power supply is faulty I just swap it out and test the system with the new one. If it makes no difference, then I keep the old one on hand.

Ye that would be ideal for me... if I had one. The problem I don't want to face is spending R800+ on a new psu only to find out the first one actually isn't faulty at all.

I don't suppose Id find something in Event Logger?

Edit: Mem test passed with flying colors.

ponder · Feb 9, 2014

acidrain said:
Ye that would be ideal for me... if I had one. The problem I don't want to face is spending R800+ on a new psu only to find out the first one actually isn't faulty at all.

Thing is you can check your reporting tools for output voltages etc, stick a multimeter onto the outputs but it's no guarantee that the PSU is fine. They can be finicky and have weird behaviour, only way to test it would be with a spare unit, can't you loan one from a friend or something. The fact that it works on one MB and not another is also not an indication that it is fine.

KleinBoontjie · Feb 9, 2014

What CPU do you have? Do you have the stock heatsink and fan on the CPU?

upup · Feb 9, 2014

I took my computer in for the same symptoms, they swap everything.
The mobo was at fault.

acidrain · Feb 9, 2014

ponder said:
They can be finicky and have weird behaviour, only way to test it would be with a spare unit, can't you loan one from a friend or something. The fact that it works on one MB and not another is also not an indication that it is fine.

I'll see how good my friends are.

beans100 said:
What CPU do you have? Do you have the stock heatsink and fan on the CPU?

PhII 955BE with Corsair H50

Robertvv said:
I took my computer in for the same symptoms, they swap everything.
The mobo was at fault.

This will suck since I'll have to send it back to Joburg

Rickster · Feb 9, 2014

ponder said:
Thing is you can check your reporting tools for output voltages etc, stick a multimeter onto the outputs but it's no guarantee that the PSU is fine. They can be finicky and have weird behaviour, only way to test it would be with a spare unit.

You can actually test voltage with a program for windows, its called HWiNFO. Not sure if its accurate but it wont pull figures out its a$$.

Tun@ · Feb 9, 2014

2x Crucial Ballistix Sport XT 8GB

Tryed them in there 1 at a time & seen if it still happens?

acidrain · Feb 10, 2014

Rickster said:
You can actually test voltage with a program for windows, its called HWiNFO. Not sure if its accurate but it wont pull figures out its a$$.

https://www.dropbox.com/s/tssxk40vl3gpgoy/HWinfo.jpg

Tun@ said:
Tryed them in there 1 at a time & seen if it still happens?

Nope but I'll check it out tomorrow

Computer rebooting constantly

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