Not sure if this is related to the frame pacing issue plaguing crossfire right now, but I'm seeing some very odd behavior with my new setup of three 7970s in Crossfire. Symptoms: After loading up BF4/CoD Ghosts (or any instensive game) and playing for a few minutes, the frame rate drastically drops. I can play for a few minutes of BF4 with everything maxed out (on a 27" Apple display, 1440p) with an FPS of around 70-100 (vsync off). And then about every 30 seconds or so the FPS drops to 10-20 for around 10 seconds, then hops back up to 70ish for 30 seconds or so, and then back down to 10-20 FPS...keeps cycling like this. The other thing I'm noticing is that all 3 fans are maxing themselves at 100% and two cards are pegged at 100% GPU and the 3rd is around 89-95%. Before adding this 3rd 7970, BF4 was running ok in 2x Crossfire. I was getting 40-50 FPS with all the same settings and the GPUs we're maybe at 80% tops. Other info: - using latest CCC and beta drivers - CPU is water cooled with H100 to 4.1ghz - mobo is Asus p9x79 Deluxe (which I think might be discontinued now) Thoughts?
So I just played again to grab some temperatures, and after alt tabbing out to look at CCC to get the GPU temps PC froze and shut down, but here's the temps I was able to see: - CPU was steady around 38-39 (its water cooled) - GPU 1 was 101 - GPU 2 was 95 - GPU 3...PC froze and shutdown before I could read it - all 3 GPU fans were at 100, and all 3 GPU's Activity was at 100 Over heating much?!?!
having same issue mines dropping to 18-23 fps in BF4 from 130 gpu usage drops to 30 odd % sometimes almost 0% testing different things at the minute SS of mine doing it
Is there a decent program to turn off ULPS? I've not touched that before, but sounds like it just handles idle state power issues? Not sure why that would matter under extreme game load...
So the side panel case doors had two fans that were blowing air out...so I turned them to blow on the graphics cards and added two more to the panel as well. Things are way more stable now. Temps are down to around 90-93 and the throttling as stopped. But, I definitely can see the Frame Pacing issue now. In BF4 I'll be getting 80fps and it'll feel like 25-30 every now and then. Now full on stutter, but when sniping you can tell some frames are missing. With just two cards, it looks as if AMD has the pacing thing fixed. They just need to get on the fix for 3+ cards.
nvm just noticed your res...could be cpu issue but most likely the spacing between graphics cards considering your fans run at 100%
Yeah mine seem's be through my raid 0 playing up windows went super sluggish nothing responding, so manually restarted with reset button, then greeted with big red fail across my raid array. ssd raid I run So powered system fully off, since it wasn't picking up one of my ssd's Came back to life picked back up an green OK for raid then Thinking the ssd running the issues needs firmware update since other ssd is newer an has newer firmware. Don't think it dying, but reckon some sort of firmware issue with it running in raid
