game lag/stuttering after 1hr 15mins play

Yidaaa

Commendable
Dec 13, 2016
4
0
1,510
Hi guys. i just built my new pc.
I7 6700k;ddr4 vengeance led 3000mhz; asus maximus viii hero; sandisk extremepro ssd
And i use graphic card from old system, r9 380

But i just noticed a weird problem that drives me crazy. everytime after 1hr15~20mins play the fps rate will drop to very low for 3 seconds and then go back to normal.

software part: i tried reinstall all drivers, bios, systems. Doesnt work

Hardware part: bought new psu 750w; tried another ssd. doesnt work

I am super annoying right now cuz i cant figure out whats the problem is.

I am gonna buy a new mobo today but i still concern about it.

Really needhelp from you guys
thank you
 

Yidaaa

Commendable
Dec 13, 2016
4
0
1,510
Finally I found the reason why.

It's because of AMD's card, the R9 380 NITRO. It's either not very compatible with the Z170 board or the driver sucks.