Hey all, when stressing the GPU the core clock is stable, until the core temperature hits 90C, than the core clock will jump to 300MHz (P0?) and immediately go back up to the normal speed. This is really annoying because it causes stutters when in-game.
Computer Type: Custom build desktop
GPU: reference sapphire R9 290 at stock settings
CPU: 4670K @ 4.3GHz
Motherboard: MSI z97 Gaming 5
RAM: 1333/9 2*2 and 2*4
PSU: Corsiar RM850i
Operating System & Version: Windows 10
GPU Drivers: 18.1.1
Chipset Drivers: 10.1.1.9
Background Applications: steam, windows defender, onedrive, corsair utility engine, samsung magician, realtec HD audio, MSI afterburner, readeon-settings.
Troubleshooting: I already disabled ULPS in MSI afterburner, I also tried installing a custom bios. Neither have helped.
Here is a scheenshot describing the problem: https://imgur.com/a/8IROh