New self-build PC freezing

[Peter Melichercik]

Recently i build my first PC. Everything runs butter smooth except one thing. Sometimes, whole system just freeze. I can not do anything just hard reset. There are some programs, which will guarantee a freeze. For example Adobe PS and Premiere. Battlefield 4 freezes only on SP campaign, MP runs ok. Sometimes it freezes after few minutes, sometimes after hours of runtime. Sometimes it freezes absolutly randomly. Like when I was shutting down the PC. What can be the problem ?

Anyway, the specs are:
MSI 970 GAMING motherboard
AMD FX-8300 CPU (Cooler Master Hyper 212+ EVO for cooling)
MSI GTX 950 GAMING 2G GPU
EVGA 500B for the juice
Kingston 16 GB KIT DDR3 1600 MHz CL9 HyperX Savage Series RAM
2x Kingston SSDNow V300 120GB 7mm (one is running OS)
WD Blue 1000GB 64MB cache HDD
All packed in Zalman Z1
TP-LINK TL-WN851ND WIFI
I haven't had much money left for OS soooo... yeah... got win 8.1 (i hope it is safe to write it here...)

And sorry for my english, Im not a nativ speaker.

[BlueChinchillaEatingDorito]

Try running MemTest86 or using the Windows Memory Diagnostic tool to check for memory errors. Memory is a common culprit for instability. You can also access the Windows Memory Diagnostic tool by just searching that in the Start Menu or by going to Repair your Computer in the Windows 8.1 installation media.

[Peter Melichercik]

Windows Memory Diagnostic found nothing.

[Peter Melichercik]

Thanks for help, I somehow managed to find the problem. As I changed wifi card, all problems vanished.