AnsweredAssumed Answered

3x r390 Crossfire Issues With 4k

Question asked by hotpancake on May 14, 2016
Latest reply on May 16, 2016 by hotpancake



Upon purchasing a 4k monitor, I've had countless issues with numerous games using crossfire. Crossfire no longer works at all in many titles, such as War Thunder and Elder Scrolls Online. The issue occurs in full screen with the latest drivers. The games where crossfire does work still yields more problems. The GPUs reach 100% usage, but the core frequency typically stays around 400-700 MHz, resulting in low fps. It's also worth mentioning that the GPUs are not overheating. Examples of this are Borderlands 2 and The Crew. Not sure what I can try at this point; I appreciate any help.


Here are my relevant system specs:


CPU: i7-4790k

GPUs: 2x Sapphire R9 390 + 1x XFX R9 390 (3 Sapphire R9 390s won't fit)

PSU: 1300W

Motherboard: MSI Gaming 5

OS: Windows 10 64-bit


Monitor: Samsung U28E590D


Thanks for the help.