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Hd 6990 cf

post #1 of 13
Thread Starter 
My pc conf

asus p8z68v-pro
i5 2500k oc 4.7
psu 1200 gigabyte
16gb ram hyper x 1600
2 hd 6990

when the first time i start 3dmark 11
x6661
now when i start the second time it drops to x5800 and third time to x5400
so what is the prob why the marks drops?

Thanks
Edited by blackend - 11/3/11 at 6:21am
post #2 of 13
Additional programs running? Though it really shouldn't effect it with your machine, do you have sufficient cooling, perhaps each time you run it your case gets more heat saturated the forcing the GPU's to throttle? Not sure, just a couple of thoughts
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post #3 of 13
Quote:
Originally Posted by blackend View Post
My pc conf

asus p8z68v-pro
i5 2500k oc 4.7
psu 1200 gigabyte
16gb ram hyper x 1600
2 hd 6990

when the first time i start 3dmark 11
x6661
now when i start the second time it drops to x5800 and third time to x5400
so what is the prob why the marks drops?

Thanks
Are you using Afterburner by any chance? If so, unistall it and select "no" when prompted to keep settings. Give it another try.
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ケンジ
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post #4 of 13
Thread Starter 
i just format my pc and iam not using anything
post #5 of 13
What case are you using? what are your temps?
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5 120mm Cooler master R4 Blade Master Windows 7 ultimate 64bit Viewsonic VX2233WM Viewsonic VX2239WM 
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CoolingOSMonitorMonitor
5 120mm Cooler master R4 Blade Master Windows 7 ultimate 64bit Viewsonic VX2233WM Viewsonic VX2239WM 
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post #6 of 13
Thread Starter 
cooler master 912 advance
now what i try is i put hd 6990+hd 6970 and they work good without drop
so what do you think the prob?only when i both hd 6990 after first run the pref drop
post #7 of 13
Thread Starter 
and when i use the ccc to make the fan 45% only the top fan is blowing air but second it work
post #8 of 13
Quote:
Originally Posted by blackend View Post
and when i use the ccc to make the fan 45% only the top fan is blowing air but second it work
Second fan should speed up on the second card when its activated. The second card is only activated when a Crossfire application is loaded, like 3DMark11 or a game.
     
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Intel I7 860  Asus P7P55D-E Pro MSI ATI 6990 8gb G.Skill 1600 DDR3 (4x2Gb) 
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G. Skill 1600 DDR3 OCZ Agility 2 120Gb  Seagate SATA Barracuda 160GB TSH663B DVD burner 
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EK Supreme HF XSPC RC360 XSPC DDC Reservoir EK-FC6990 - EN (Nickel) 
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CPUMotherboardGraphicsRAM
Intel I7 860  Asus P7P55D-E Pro MSI ATI 6990 8gb G.Skill 1600 DDR3 (4x2Gb) 
RAMHard DriveHard DriveOptical Drive
G. Skill 1600 DDR3 OCZ Agility 2 120Gb  Seagate SATA Barracuda 160GB TSH663B DVD burner 
CoolingCoolingCoolingCooling
EK Supreme HF XSPC RC360 XSPC DDC Reservoir EK-FC6990 - EN (Nickel) 
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Windows 10 64bit Pro Gateway FHX2300 Microsoft Wireless Multimedia V2 PC Power & Cooling Silencer 750 Quad 
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post #9 of 13
Thread Starter 
yes but when they are in cf the first fan works in 45% but the second doesnt work!!any idea?
post #10 of 13
Quote:
Originally Posted by blackend View Post
yes but when they are in cf the first fan works in 45% but the second doesnt work!!any idea?
You are selecting the second card in the drop down box in CC and setting the fan setting also to 45%, right? Actually, there should be 4 GPUs there with settings. I have to check my setup to see whats there again, but I can't really tell you much else, since I run watercooling on the cards.
     
CPUMotherboardGraphicsRAM
Intel I7 860  Asus P7P55D-E Pro MSI ATI 6990 8gb G.Skill 1600 DDR3 (4x2Gb) 
RAMHard DriveHard DriveOptical Drive
G. Skill 1600 DDR3 OCZ Agility 2 120Gb  Seagate SATA Barracuda 160GB TSH663B DVD burner 
CoolingCoolingCoolingCooling
EK Supreme HF XSPC RC360 XSPC DDC Reservoir EK-FC6990 - EN (Nickel) 
OSMonitorKeyboardPower
Windows 10 64bit Pro Gateway FHX2300 Microsoft Wireless Multimedia V2 PC Power & Cooling Silencer 750 Quad 
CaseMouseAudio
Cooler Master HAF 932 Microsoft Wireless Optical Creative 5.1 
  hide details  
Reply
     
CPUMotherboardGraphicsRAM
Intel I7 860  Asus P7P55D-E Pro MSI ATI 6990 8gb G.Skill 1600 DDR3 (4x2Gb) 
RAMHard DriveHard DriveOptical Drive
G. Skill 1600 DDR3 OCZ Agility 2 120Gb  Seagate SATA Barracuda 160GB TSH663B DVD burner 
CoolingCoolingCoolingCooling
EK Supreme HF XSPC RC360 XSPC DDC Reservoir EK-FC6990 - EN (Nickel) 
OSMonitorKeyboardPower
Windows 10 64bit Pro Gateway FHX2300 Microsoft Wireless Multimedia V2 PC Power & Cooling Silencer 750 Quad 
CaseMouseAudio
Cooler Master HAF 932 Microsoft Wireless Optical Creative 5.1 
  hide details  
Reply
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