Computer restarts randomly

[dune3001]

Hello. I'm having this problem where the computer randomly restarts, with no error message or anything, either before or after.
It happens at random times, somewhere like 1-2 types per day. It's not really dependent on the CPU usage or temperature; or any other thing, as far as I can tell. Most of the computer components are fairly new, about a year or so, so it can't be wear and tear. I didn't put change or install anything new since then and the problem is recent, like a week or so.
Any ideas how to fix this? Or what could be causing it? Thanks!

Here is my computer's hardware, as far as I know it:
CPU Processor - AMD A10-5800K
Motherboard - ASRock FM2A88x Extreme6+
20 GB of DD3 Ram
Video - NVIDIA GeForce GTX 750

 

[herrwizo]

Random restarts, from my experience, usually mean one of the following:

- some component within the case not having a proper contact (disconnect all cards and drives and reattach them)
- PSU issue (hard to tell without replacing it, leave it for the last)
- a short within the case (loose screw behing the mobo, incorrectly positioned motherboard standoffs, case grounding issues of various kinds)
- RAM issue (try using only a single stick of memory and test again. If it fails, test with a different one.)
- GPU issue (try removing it and only use integrated GPU for test)
- driver conflicts and/or IRQ issues (perform a clean windows reinstall, get only the latest drivers, disable devices you don't use in BIOS...)

 

[dune3001]

Random restarts, from my experience, usually mean one of the following:

- some component within the case not having a proper contact (disconnect all cards and drives and reattach them)
- PSU issue (hard to tell without replacing it, leave it for the last)
- a short within the case (loose screw behing the mobo, incorrectly positioned motherboard standoffs, case grounding issues of various kinds)
- RAM issue (try using only a single stick of memory and test again. If it fails, test with a different one.)
- GPU issue (try removing it and only use integrated GPU for test)
- driver conflicts and/or IRQ issues (perform a clean windows reinstall, get only the latest drivers, disable devices you don't use in BIOS...)

Thanks, I'll try to see if these work.