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Terrible lack of smoothness in games R9 290 crossfire

post #1 of 12
Thread Starter 
Hello everyone!
With crossfire mode enabled in any game on my two reference R9 290s (one ASUS, one Sapphire - had to RMA the other Sapphire one due to fan rattling) I am getting horribly laggy gameplay that feels like half of the FPS I am actually getting. This happens in many games, is not related to BIOS settings, and occurs with both DirectX and Mantle. In Battlefield 4 it is particularly obvious, as well as Diablo 3. where 90fps feels like 20 fps. Here is an example of the frame timing graph I get in Battlefield 4: http://imgur.com/a/LO1rc.
According to many, the green line for GPU is supposed to be stick-thin, not thick like this. Frame pacing makes no difference as well, which is highly annoying.
In an effort to fix this issue, I even upgraded from a Sandybridge 2500K @ 4.8ghz to a Haswell 4770K @ 4.5ghz, and this has made no difference; I thought it could be due to a PCIe 2.0 x8 bandwidth limitation. Obviously I reinstalled windows as well at this time. Again, this issue occurs only with crossfire enabled.

As follows are my full specs:

Core i7 4770K @ 4.5 ghz 1.34V
Gigabyte Z87-SLI Motherboard
Noctua NH-D14 Cooler
16GB G-SKILL DDR3 1600 mhz CL9 RAM OC @ 2000 mhz CL11
2x AMD R9 290 4GB Reference Cards
Asus Xonar Essence ST PCI Sound Card
Corsair AX850 PSU
Coolermaster HAF X Case

Samsung SSD 830 256GB
Samsung SSD 840 250GB
Crucial M4 256GB SSD
2x OCZ Agility 3 120GB SSDs
2x Samsung Spinpoint F3 1TB HDDs


BIOS is of course the latest - but that will make no difference since I changed the entire chipset I was using anyway.
Drivers are all updated to the latest stable or BETA drivers, but this should also make no difference as I have had this issue for many months now, with no drivers fixing it - and I started at 13.11 beta 9.2.

Any help will be greatly appreciated here.

Thanks,
Justin.
post #2 of 12
Try unparking your cpu cores.

http://www.coderbag.com/Uploads/Unpark-CPU-App.zip
post #3 of 12
Thread Starter 
Quote:
Originally Posted by LtMatt View Post

Try unparking your cpu cores.

http://www.coderbag.com/Uploads/Unpark-CPU-App.zip

Already done that thanks! Didn't help at all frown.gif
post #4 of 12
Have you tried with your cpu, ram and bios at stock settings?

Are you using the latest beta bios for your mobo?
post #5 of 12
Thread Starter 
Quote:
Originally Posted by LtMatt View Post

Have you tried with your cpu, ram and bios at stock settings?

Are you using the latest beta bios for your mobo?

Yeah I have tried tonnes of BIOS settings, and as I said I changed the entire motherboard and CPU frown.gif

There is no beta BIOS for my mobo, but the last official one I am using which is from late January.
post #6 of 12
is your cpu oc stable? i mean prime stable.

you mind running 3DMark11?
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post #7 of 12
Inconsistent frame intervals is generally not a symptom of instability.

I'd try the following:

- Ensure the cards aren't being throttled in game by maxing out the power limit slider (won't work on 14.x drivers).

- Try enabling or disabling HPET, both via the BIOS and in Windows.

- Adjust the driver's flipqueuesize in the registry. Some games seem to just randomly select a frame from the queue, regardless of the order they were drawn in, which can result in some really bad stutter. Try setting a value of 2, and if that doesn't help try 1. 0 doesn't do anything, so don't bother. This might lower framerate/CFX scalling.

- See if manually forcing core affinity solves anything. It probably won't, but it's worth a try.
Quote:
Originally Posted by Jaju123 View Post

There is no beta BIOS for my mobo, but the last official one I am using which is from late January.

What's the exact motherboard model?
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Hard DriveHard DriveHard DriveCooling
Plextor M6e 128GB (fw 1.06) M.2 (PCI-E 2.0 2x) 2x Crucial M4 256GB 4x WD Scorpio Black 500GB Noctua NH-D15 
OSMonitorKeyboardPower
Windows 7 Professional x64 SP1 BenQ BL3200PT Filco Majestouch Tenkeyless (MX Brown) Corsair RM1000x 
CaseMouseAudio
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1x Crucial BLT4G3D1608ET3LX0 @ 2000, 10-11-11-3... OCZ (Toshiba) Trion 150 120GB Hyundai Sapphire 120GB 3x Hitachi Deskstar 7k1000.C 1TB 
CoolingOSPowerCase
Noctua NH-D14 Windows 7 Pro x64 SP1 Antec TP-750 Fractal Design R5 
Audio
ASUS Xonar DS 
CPUMotherboardGraphicsRAM
i7-6800K @ 4.3/3.5GHz core/uncore, 1.36/1.2v ASRock X99 OC Formula (P3.10) GTX 780 (temporary) 4x4GiB Crucial DDR4-2400 @ 11-13-12-28-T2, 1.33v 
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post #8 of 12
Thread Starter 
Quote:
Originally Posted by Blameless View Post

Inconsistent frame intervals is generally not a symptom of instability.

I'd try the following:

- Ensure the cards aren't being throttled in game by maxing out the power limit slider (won't work on 14.x drivers).

- Try enabling or disabling HPET, both via the BIOS and in Windows.

- Adjust the driver's flipqueuesize in the registry. Some games seem to just randomly select a frame from the queue, regardless of the order they were drawn in, which can result in some really bad stutter. Try setting a value of 2, and if that doesn't help try 1. 0 doesn't do anything, so don't bother. This might lower framerate/CFX scalling.

- See if manually forcing core affinity solves anything. It probably won't, but it's worth a try.
What's the exact motherboard model?

The motherboard is a Z87X-SLI from gigabyte, a relatively newly released board. HPET didn't change anything on my old motherboard, and there is no option on the new one either so I think that's not the issue. I'll try the power limit thing later and the flipqueuesize thing hehe! I am in a DOTA game atm tongue.gif Source games aren't so badly effected by this problem it seems.
post #9 of 12
Maybe try the second bios on your cards. A different os.

EDIT

I assume you have frame pacing enabled in CCC? tongue.gif
post #10 of 12
Thread Starter 
Quote:
Originally Posted by LtMatt View Post

Maybe try the second bios on your cards. A different os.

EDIT

I assume you have frame pacing enabled in CCC? tongue.gif


Hehe yeah I tried the second BIOS, and I also flashed the cards to different BIOSes to try to see if any of them would fix the problem. Frame pacing is indeed enabled, by the way.
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