2 Replies Latest reply on Jan 8, 2017 10:27 AM by tomee09

    r9 290 wattman disables p-states on voltage modification


      Wattman is having some very weird behaviour with my R9 290 Tri-X...


      When I alter the voltage for any of the 7 P-states the card will down-clock to the P-state below the lowest voltage-altered P-state.


      As an example: I lowered the voltage for P-state 7 (1000MHz) from 1250mV to 1230mV. During game play at 100% GPU load, the GPU only reaches p-state 6 (990MHz). If I then alter the voltage for P-state 1 (485MHz) from 1181mV to 1180mV the card will default to the clockspeed for P-state 0 (300MHz) and never increase above this no matter the GPU load.


      This behaviour is the same on both the 16.12.1 and 16.12.2 drivers, with 3rd party overclocking utilities uninstalled. I have installed the AMD drivers following different combinations of the Guru3D Display Driver Uninstaller (DDU) programme, normal driver upgrades, and AMD clean driver instillation.


      Any suggestions?





      • AMD Graphics Card
        • AMD R9 290 Tri-X OC
      • Desktop or Laptop System
        • Desktop
      • Operating System
        • Windows 10 64bit
      • Driver version installed
        • 16.12.1 / 16.12.2
      • Display Devices
        • Crossover 27" 1440p 60Hz DVI-D
      • Motherboard
        • Gigabyte Z77 DS3H
      • CPU/APU
        • i7 3770K
      • Power Supply Unit  Make, Model & Wattage
        • OCZ ZT 650W 80+ Bronze
      • RAM
        • 2 x 8Gb 1600MHz


      edit: PC details