i got a new computer with Windows 10. but it crashes all the time need

Hi. My computer spec:

• Intel Core i7-6700 prosessor 4GHz ~ 4.10GHz, 4 kjerner
• GeForce GTX 970 4GB GDDR5 OC, PhysX CUDA
• 256GB PCIe SSD M.2 som systemdisk
• 2TB harddisk 7200rpm
• 8GB DDR4 2133MHz Dual channel, 2x4GB (2 ledige slotter. Støtter opptil 64GB)
• DVDRW brenner
• ASRock Fatal1ty Z170 Gaming K4 hovedkort
• Killer E2400 Gigabit LAN
• 600W ATX strømforsyning
• Fractal Design Define R5 Window kabinett
• Størrelse kabinett: 23 x 52 x 45 cm
• Kontakter i front:
• - 2 x USB 3.0
  - 2 x USB 2.0
  - 1 x Mic
  - 1 x HD Audio
  - 1 x SD kortleser
• Kontakter bak:
  - 1 x Dual Link DVI-I
  - 3 x DisplayPort
  - 1 x HDMI 2.0
  - 1 x Optisk SPDIF utgang
  - 4 x USB 2.0
  - 8 x USB 3.0
  - 1 x PS2 Mus/tastatur
  - HD Audio Jack: front høyttaler, center, bass, linje-inngang, bakhøyttaler, mikrofon

I have Windows 10 Home 64 Bits system.
everytime i play a game. lets say league of legends the sound in my headset starts to make skratchy noises and then the computer just shuts down.
same if i watch a video. but as long as im just surfing or do somthing witout any sount it dosent seem to crash the system.
How can i fix this? im starting to think its something with the (ASRock Fatal1ty Z170 Gaming K4)motherboard? or installation of windows 10 and Realtek ALC1150 Audio Codec?

please help.

regards stikkan

Is it still under warranty for exchange, if so ? take it back to the place where you bought it and have them check it out

Have you downloaded and installed the latest Win 10 drivers for your motherboard? There's a new audio driver released on the 15th.

^This (both)

Is it still under warranty for exchange, if so ? take it back to the place where you bought it and have them check it out

yeah its an good option, but it means i have to mail the computer back, wait a week before they mail it back. so i will be without a computer for a couple of weeks. thats realley the last thing i want to do hehehe. but if i cant fix it to day i wil mail it back.

Have you downloaded and installed the latest Win 10 drivers for your motherboard? There's a new audio driver released on the 15th.

Do you think it matters much if i use the europe download or the US? any ideas?

Do you think it matters much if i use the europe download or the US? any ideas?

Should be the same, just different download locations.