BF4 CPU LAG Spikes in Dual CF - R9-280x Sapphire Dual-x OC Edition 1050/1500mhz stock
Hello,
I've been having huge problems with my CF setup in BF4 since I installed it.
It doesn't matter how hard I try to fix it, it doesn't work, and I've run out of options.
In BF4 when CF is enabled(both cards at stock speeds), I get huge CPU spikes, the GPU line on BF4's graph is normal I believe(ss below), the spike freezes the game for about 1 second and drops my frame rate to 1 or 2fps. It only happens in CF.
In single GPU the game work flawleslly.
Config:
Win7 Ultimate 64bits
i5-3570k @ 4.7ghz
Gigabyte Z77x-D3H
8gb(2x4gb)Patriot Intel Extreme Masters 1600mhz
2x R9-280x Sapphire Dual-X OC Edition 1050/1500mhz
XFX 850w Pro
List of tried fixes:
- Unpark CPU cores
- Reinstall/Revert drivers to every mantle capable driver(14.1 and after)
- Direct3D11/Mantle, both show the same problem
- Lowered specs(ultra-high-medium)
- Disabled Frame Pacing
- Updated MB Bios
- Ran with CPU and MB on stock defaults, 3.4ghz@3.8 turbo
- Disabled/Enabled V-sync and Adaptive V-sync
- Console commands such as frameahead 0,1,2,3 and 4, triblebuffer off, etc...
img Link:BF4
Thanks in advance for any who tries to help me, I've already lost 2 days trying to figure that out. Also ran out of google attempts on various terms related to that problem. Cya.