17 Replies Latest reply on Apr 28, 2016 7:50 AM by emsir

    R9 390 hard locking during gameplay when in PCIEX16 slot


      When my Radeon R9 390 is in the x16 (PCIEX16) slot, hard locks occur during gameplay (screen freezes on Battlefront and Witcher3). I have to shut down using the power button. This does not happen when the card is in the x4 slot. I have tried another R9 390, and the same problem occurs. I have tried updating the bios, uninstalling/installing new graphics drivers (Crimson 16.1), Windows re-installation and fitting aftermarket CPU cooler + case fans and powering the graphics card in parallel with two PSU rails. Prior to trying all of these, I returned the mobo and CPU to supplier, no faults can be found apparently.


      • GPU - MSI Radeon R9 390 Gaming 8GB GDDR5
      • PSU - Antec TP-750C TruePower Classic 750W
      • MOBO - Gigabyte Z170M-D3H
      • RAM - 8GB HyperX DDR4
      • CPU - Skylake Intel Core i7 6700K 4GHz
      • OS - Win10


      If anyone has any idea what could be causing this, how to debug or has experienced something similar, please let me know.