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7870 XT crossfire bottlenecked by 2500k @ 4ghz? - Page 2

post #11 of 26
Thread Starter 
I am losing performance because it only runs @ 80 % load. After about a minute it starts to fluctuate heavily because it tries to "match" the clock speeds to the other card.

Maybe someone can shed some light?
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post #12 of 26
wait till you get an aftermarket cooler, then do more tests.
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post #13 of 26
Thread Starter 
that's not the issue.

In heaven my CPU is at 35 % load. my GPU load problem still exsists
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post #14 of 26
i bet you it contributes. i have to oc my i7 SB to 4.5 GHz to keep up with my stock 7950.
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post #15 of 26
Thread Starter 
I dont think it does in heaven. But even if it does it does not explain the changes in clockspeeds
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post #16 of 26
Could you try setting both the cards to +20% voltage offset?
 
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MSI GX60
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CPUMotherboardGraphicsRAM
Amd FX-8350 Asus Crosshair Formula V MSI 7970 Reference 2x4 GB Corsair Vengeance 1600 Mhz 
Hard DriveHard DriveCoolingCooling
1x 2 TB HDD , 2x 500 GB HDD Samsung 840 Coolermaster V8 1x 140mm exhaust 
CoolingCoolingOSMonitor
2x Be quiet Pure Wings 2 120mm 1x 200 mm front red led intake Windows 10 Acer V223HQBOb 23" 
KeyboardPowerCaseMouse
Ducky 9008S Corsair TX 750 Corsair 600T Corsair Vengeance M60 
Mouse PadAudio
Razer Goliathus Extended Sony wireless thing that i forgot the name of.  
CPUMotherboardGraphicsRAM
AMD A10 4600m MSI GX60 1AC 7970m Corsair Vengeance 1600mhz 
Hard DriveOptical DriveOSMonitor
Western Digital Black Blue Ray reader / writer  Windows 8 Pro 64 Bit 1080p Non-glare 
KeyboardPowerCase
Steelseries Scissor Switch Chiclet Style 180W Power Brick MSI GX60 
CPUMotherboardGraphicsRAM
Amd Phenom X4 9550 Asus M3N78-EH Sapphire 7790 Dual-x 4GB of 800MHZ DDR2 
Hard DriveOptical DriveCoolingCooling
OCZ Vertex 2 Ordinary Reader+Burner Sapphire Dual-X Scythe Shuriken 
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post #17 of 26
my fps goes down - way down when my i7 sb is at stock. i only use 1080.
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post #18 of 26
Thread Starter 
Well. I work part time at a computer hardware shop. They told me to bring it in, they are gonna take a look. They have the spare parts i need to start eliminating problems.

Hopefully better news after the weekend smile.gif
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Main gaming rig
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CPUMotherboardGraphicsRAM
I7 4820k @ 4.4 MSI X79A-GD45 (8D) GTX 1070 Corsair 16 GB DDR 1600 mhz 
Hard DriveHard DriveOSMonitor
Western digital black Crucial MX300 Windows 10 LG 23 inch IPS 
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post #19 of 26
Double Post
Edited by RavageTheEarth - 3/7/13 at 7:53am
post #20 of 26
Well actually now that I'm looking at it, it seems that my fix is your problem! Definetly let me know if you fix this!
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