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0% CF scaling - Page 9

post #81 of 89
I'm done, I'm going to RMA my 2 card's FOR THE SECOND TIME...
I tried everyting,
A clean install, multiple games, ....
Pfff
Thinking of selling these cards and just buying a 580 3 GB SLI....
   
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The Singularity
(19 items)
 
CPUMotherboardGraphicsRAM
Core i7 4790K @4GHz with stock cooler ASUS Maximus VI Gene GTX 1080 Ti G.Skill RipjawsX 16 GB 1600 MHz 
Hard DriveHard DriveOSMonitor
840 Pro Series 256 GB WD Black 3TB Windows 7 Pro x64 Dell U3415W 
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Dell U2715H Corsair AX860 with terrible MDPC-x sleeving job Corsair 350D 
CPUMotherboardGraphicsRAM
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1TB Samsung 960 EVO NVMe Silent custom liquid cooling Dell U3415W Dell U2715H 
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post #82 of 89
So am I buying your Mobo or did it work?
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post #83 of 89
Thread Starter 
Update:

The new motherboard has arrived and has absolutely fixed all the current negative CF scaling. These cards need 2 x16 pci-e slots to get the full power.

Now look at the results

BFBC2 @ 4800x900 with CF = 110fps
BFBC2 @ 4800x900 without CF = 50fps

Crysis 2 @ 4800x900 with CF = 75-80fps
Crysis 2 @ 4800x900 without CF = 50fps

I'm so happy this board did the trick.
post #84 of 89
Quote:
Originally Posted by charlesC8188 View Post
Update:

The new motherboard has arrived and has absolutely fixed all the current negative CF scaling. These cards need 2 x16 pci-e slots to get the full power.

Now look at the results

BFBC2 @ 4800x900 with CF = 110fps
BFBC2 @ 4800x900 without CF = 50fps

Crysis 2 @ 4800x900 with CF = 75-80fps
Crysis 2 @ 4800x900 without CF = 50fps

I'm so happy this board did the trick.
What mobo were you using before? I'm moving my pair of 6990s from 8x/8x to full 16x/16x PCIe slots now.
     
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post #85 of 89
Thread Starter 
Quote:
Originally Posted by ezveedub View Post
What mobo were you using before? I'm moving my pair of 6990s from 8x/8x to full 16x/16x PCIe slots now.
Asus 880g EVO USB3 was the previous board, and ran at x4 x4 with both slots occupied. When I got this Formula, man did it make such a difference.
post #86 of 89
Quote:
Originally Posted by charlesC8188 View Post
Asus 880g EVO USB3 was the previous board, and ran at x4 x4 with both slots occupied. When I got this Formula, man did it make such a difference.
That board doesn't even have real crossfire support. It's a locked x16 and a x4.

From Anandtech review:
Quote:
The 880G has sufficient PCIe links available for your dedicated graphics (or other add-in cards), but is trimmed down though. The chipset allows you to utilize two full x16 graphics cards. But install one and it can utilize x16 PCIe lanes, install two and it will split into a X16 and a x4. So there's no real crossfire support to be found here, unless you sincerely limit bandwidth.
There's enough bandwidth but I don't think that chipset was made to fully support crossfire. Especially seeing as it has a integrated video chipset.
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post #87 of 89
Thread Starter 
Wow. Wish I would of read up on that before I bought it cause it was a good 150$ when I bought it. Oh well. The Asus Formula has fixed the issue! This thread can get closed. Problem solved.
post #88 of 89
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Samsung 850 Evo Samsung 850 Evo Toshiba Q Series Pro WD Black 
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post #89 of 89
I'm now reïnstalling, I hope this fixes my issue....
Grtz
   
The Singularity
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CPUMotherboardGraphicsRAM
Core i7 4790K @4GHz with stock cooler ASUS Maximus VI Gene GTX 1080 Ti G.Skill RipjawsX 16 GB 1600 MHz 
Hard DriveHard DriveOSMonitor
840 Pro Series 256 GB WD Black 3TB Windows 7 Pro x64 Dell U3415W 
KeyboardPowerCase
Dell U2715H Corsair AX860 with terrible MDPC-x sleeving job Corsair 350D 
CPUMotherboardGraphicsRAM
Undecided: Coffee Lake 6c? Undecided Nvidia GeForce GTX 1080 Ti 16 GB high-speed DDR4 
Hard DriveCoolingMonitorMonitor
1TB Samsung 960 EVO NVMe Silent custom liquid cooling Dell U3415W Dell U2715H 
KeyboardPowerCaseMouse
Corsair K70 Cherry MX Red Corsair AX860 /w custom length MDPC-x cables CaseLabs SMA8 Mionix Naos 7000 
CPUMotherboardGraphicsGraphics
[Intel] Core i5 2500K [ASUS] Maximus IV Extreme [Gainward] GeForce GTX 560 Ti Phantom 2 GB [Gainward] GeForce GTX 560 Ti Phantom 2 GB 
RAMHard DriveHard DriveOptical Drive
[G.Skill] Ripjaws-X [Corsair] Force Series 3 120GB [Samsung] F3 [Asus] DRW 24B3LT 
CoolingCoolingCoolingOS
[Corsair] H100 [Gainward] Phantom [Custom] Red Cooling [Microsoft] Windows 7 Ultimate 
MonitorKeyboardPowerCase
[Acer] 3x S221HQ EyeFinity [Logitech] G110 [Corsair] AX1200 [NZXT] Phantom Singularity mod by Xioros 
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[Roccat] Kone [+] [Razer] Vespula [Logitech] X-530 5.1 Surround 
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The Singularity
(19 items)
 
CPUMotherboardGraphicsRAM
Core i7 4790K @4GHz with stock cooler ASUS Maximus VI Gene GTX 1080 Ti G.Skill RipjawsX 16 GB 1600 MHz 
Hard DriveHard DriveOSMonitor
840 Pro Series 256 GB WD Black 3TB Windows 7 Pro x64 Dell U3415W 
KeyboardPowerCase
Dell U2715H Corsair AX860 with terrible MDPC-x sleeving job Corsair 350D 
CPUMotherboardGraphicsRAM
Undecided: Coffee Lake 6c? Undecided Nvidia GeForce GTX 1080 Ti 16 GB high-speed DDR4 
Hard DriveCoolingMonitorMonitor
1TB Samsung 960 EVO NVMe Silent custom liquid cooling Dell U3415W Dell U2715H 
KeyboardPowerCaseMouse
Corsair K70 Cherry MX Red Corsair AX860 /w custom length MDPC-x cables CaseLabs SMA8 Mionix Naos 7000 
CPUMotherboardGraphicsGraphics
[Intel] Core i5 2500K [ASUS] Maximus IV Extreme [Gainward] GeForce GTX 560 Ti Phantom 2 GB [Gainward] GeForce GTX 560 Ti Phantom 2 GB 
RAMHard DriveHard DriveOptical Drive
[G.Skill] Ripjaws-X [Corsair] Force Series 3 120GB [Samsung] F3 [Asus] DRW 24B3LT 
CoolingCoolingCoolingOS
[Corsair] H100 [Gainward] Phantom [Custom] Red Cooling [Microsoft] Windows 7 Ultimate 
MonitorKeyboardPowerCase
[Acer] 3x S221HQ EyeFinity [Logitech] G110 [Corsair] AX1200 [NZXT] Phantom Singularity mod by Xioros 
MouseMouse PadAudio
[Roccat] Kone [+] [Razer] Vespula [Logitech] X-530 5.1 Surround 
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