i have the same issue and i have the FX 8350 with mobo asrock 970 ex3 and with 2 Video cards R9 270 crossfirex, the PSU is corsair cx750m . the GPU temp and usage playing BF4 suddenly drops from 99% to 10%, i used to have a gtx 660 TI and i had the same issue, maybe i need to change some settings but i dont have any idea which settings.
i was playing BF4 today and i got the same issue again around 5-7 times per game then i was checking the tweak and gpu usage was ok but then i realized that i selected the graphic card number two after that i clicked on the card number one and the gpu usage was around 20 %, i dont know what to do. if you have some info about this , i´ll appreciate it. thanks in advance for any info.
