Custom pc randomly restarting help!

[topscorer17]

I just finished building a new custom PC, and everyhting seems to be working however after an hour or so of usage, it freezes and goes into a forced restart. I have tried many different things to get this problem solved all to no avail.

Here are my specs:

amd fx 6300
8 gb of ddr3 ram (i know it isnt the ram as i've tried different modules from another working pc and the problem still occurs)
amd r9 290
1 tb 3.5 inch seagate drive.
asus asus m5a78l-m lx plus mobo
750w corsair cx750 bronze

 

[Emerald]

Have you checked the HDD?

Have you checked the application and system log?

What OS?

 

[topscorer17]

Have you checked the HDD?

Have you checked the application and system log?

What OS?

the HDD is brand new, not sure how or what the application and system log is? mind explaining? and the OS is windows 8.1 Pro 64 bit.

 

[Emerald]

It does not matter how old a drive is. The drive can still have errors which might have been caused due to the random restarts. Just do an Error check to make sure.

In the Windows application and system logs you can find valuable information on disk issues and system problems (BSOD, software failure, reboots).

1. Press Winkey +w, because this launches the Search box, and crucially, the focus is on Settings (rather than Apps).
2. Now type: "ev" you should see 'View event logs'.
3. If you just want a quick 'Health Check' then start with the central 'Overview and Summary' pane, I suggest you work your way through the Critical messages followed by the Error messages. As the title indicates this is where you will find a list of important events collected from all the computer's logs, the benefit is that you can work your way through the red dots quickly.

Alternatively, you could focus on the left pane and drill-down through a particular Windows log such as Windows Logs --> Application.