PC Randomly Shutdowns

[miniman_obrien]

Hi guys, I'm having a few problems with a PC I've built.

Every so often it randomly shutdowns, and then tries to reboot and fails many times. It just powers on for a second and powers down a few times before starting up again. This is happening kind of regularly now.

I recently OC'd my i7 3820 to run at the max stock speed continously, as well as overclocking my R9 290 to a reasonable 1077Mhz with the power limit in Afterburner set to 50%. Although I've now removed both overclocks to find out why my system is unstable.

I've used the SpeedFan software utlitiy to see if my PSU is at fault, apparently it reads the 12v rail only putting out 10.47 volts.

What could be at fault here? It sounds like the PSU from the Speedfan reading, but it's third party software so I don't quite trust it's reading. So how may I check the voltages in the MSI BIOS? I've looked around it but can't find anything related to the PSU.

My system is as follows -

Motherboard - X79A GD-45
Processor - i7 3820
Graphics Card - MSI Gaming R9 290
RAM - G-Skills Ripjaws (2 x 4GB)
Power Supply - Corsair RM650 80+ Gold 650W
HDD - Toshiba DT01ACA200
SSD - Kingston Technology 60GB

 

[jnewegger23]

Try pulling back your overclock on your gpu just a little and see if that resolves the issue. When overclocking here's the recommended order:
1. CPU 2. GPU 3. Memory. If one or more is not stable you will not figure out what the problem is without great difficulty. Make your life easier and first make sure you have a rock solid cpu overclock. If you are pushing it too hard and did not really stress test it appropriately your oc may not be as stable as you think. Add to that a now overclocked gpu and add to that overclocked memory (you did not mention overclocking this and that helps if you didn't) and now what can you say about what's causing what? Nobody can without just being a gifted guesser.
I spend over a week making sure my cpu oc is rock solid. Most people who have issues do not. Even after stress testing prime95 for 24, 36, or even 48hours you can go and play your favorite game and find your oc at those settings are toast! Frustrating yes, but just scale it back with NOTHING else overclocked (meaning your gpu is running at a rock solid DEFAULT settings for now) until you don't see any crashing, hanging, or bsods etc.
Now, oc your gpu; should be easy as your profile should have been saved. If it crashes now after the 1 week of making sure your cpu is good you know it's your gpu settings and nothing else. Once you find your best gpu oc settings, now enjoy gaming a few evenings in a row (less than a week, even a couple of days on just some strong games of differing types) and now you know your gpu oc is rock solid.
If you want to oc your memory then by now you get the pattern. I just buy the better sticks as the time it takes to get oc'd memory stable vs the benefits achieved for me isn't worth it but to each his own. Best of luck to you!