R9 290 Crossfire Issues

[Matty956]

Hi everyone I've just got round to fixing the fans on my Tri-x 290 after they crapped out on me. I've added into my rig a, Bequiet Power zone 1000w psu, I know this is still only bronze rated but it's certainly a step up from my old corsair cx750. I've added in a second 290 a msi twin frozr, everything booted up fine afterburner detects both Gpus and crossfire is enabled in radeon settings. But the performance in games is truly shocking, I'm getting around 10-20 fps in GTA V maxed out at 1080p even unigine benchmarks stay at around 10 fps. If someone could help me I'd really appreciate it.

My specs are - i5 4690k @4.7ghz
16gb Patriot 2133mhz
Z97s SLI Krait
R9 290 Tri-x OC
R9 290 Twin Frozr
2TB Barracuda
120gb ssd
1000w Be quiet Powerzone

 

[Puppetmaster]

What driver are you running?

 

[Matty956]

Driver Version - 9.14.10.01171
Crimson 16.2
Forgot to mention this is also with windows 10

 

[BluD]

I would run DDU and then install latest driver, and disable MSI AB for now to rule that out.

 

[Matty956]

So the things I've Tried So far are

Flashed Motherboard Bios to latest Version
Used DDU (safe mode) and installed the latest drivers from amd
Disabled afterburner

None of the above have seemed to make a difference, in radeon settings both Gpus are showing as a 500mhz core. I'm about to try flashing the new twin frozr 290 to its latest Bios as the one it's running is from 2013

 

[Puppetmaster]

If you disable crossfire but with both cards connected, does the primary card perform normally?

 

[BluD]

Yeah flashing the bios might be an idea if its only showing at 500mhz core, mine show as 1000mhz core. Besides even if they were running at 500mhz you would still get very nice performance in gta at 1080p so its not just core speed causing a problem.

 

[Matty956]

thanks for the replys guys, i think ive sort of managed to fix the core speed issue, have no idea how to be honest i removed the gpus from my motherboard and reinserted them. now the radeon software is showing the Tri-x at 1000mhz and the Twin frozr at 977mhz these are the correct speeds for each card. only problem now is while doing some gaming tests (battlefield 4 because its scales well) the MSI card is hitting 94/95c pretty much instantly where as the tri-x never reaches 80c. my case has pretty good airflow throughout 2 140mm intakes at the front, 2 120mm exhausts at the top and a 120mm for the cpu rad. i know these cards run hot but hitting 95c almost instantly is a little alarming this is with fans at 80%+ to. tried the msi card on its own with the same results.

 

[Azen]

Matty I used to have twin r9 290's. None reference cards the msi gaming ones. They ran HOT I found that the top card would inhale the heat from the 2nd card and hit 95 quickly. I ended up countering this by buying a kraken g10 and a corsair h90 and using a fan controller with temp probes to spin the fans up when it ran hot. With this in place the top card (core at least) wouldn't go above 65.

For all of this I found however that xfire was not worth it. Too few games support it and even if they do it's unstable as hell. If you only play bf4 and elite you will be fine. But witcher 3 for example still doesn't work fully with it. Fallout doesn't either.

After a year of trying to get the most out of these I gave up flogged one on eBay, then bought myself a 980 ti.

If you're committed to staying with them I'd honestly advise just taking one out, using a g10 and water aio on the other one and clocking the beans out of it.

P.s. The core throttles at 95 so will be slowing down at that point.

 

[Asa]

I had the same MSI card, paired with a Gigabyte Windforce. I very recently put them under water, it's the only way I could tame the heat. Now they're both running something like 1080 on the core and 1400 memory, barely exceeding 50 degrees.

Tis an expensive and fairly time-consuming solution, but it's fun. Now I'm trying to find a 295x waterblock for another PC