Restarting issue

[wallofsound]

Hi there,

After a month or two running my new rig, it seems to have developed a fault - after booting into windows for a couple of mins the graphic card's fans start to speed up to what must be full speed then the computer restarts.

I assume the best thing would be to try a new driver - but worried that it'll restart half way though installing which is never good. Any ideas?

Haven't overclocked any parts or even really pushed it very hard yet.

Main bits of system are:
Gigabyte Z170XP-SLI
Intel Core i5 6600K
Asus GeForce GTX 970 TURBO OC 4096MB GDDR5
EVGA SuperNova G2 750W '80 Plus Gold'

 

[wallofsound]

All sorted, please ignore.

MB power supply had come loose.

Whoops!