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Trifire Cooling

post #1 of 4
Thread Starter 
Hello, I've got a 5970 and was contemplating adding a 5870 or 5850. I wondered what affect this would have on cooling. My 5970 currently runs at 50 idle and doesn't usually exceed 70-80 under load. That's at stock clocks - my 5970 overclocks really poorly. I figured I could always get an after-market cooler but I'd like to avoid it if it's not necessary.
Also, what sort of noise levels would I expect from that sort of setup?

Thanks
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II x6 1090t ASUS Crosshair IV Formula Radeon HD 5970 8GB DDR3  
Hard DriveOSPowerCase
500GB x2 Windows 7 64bit CoolerMaster Silent Pro 1000w HAF X 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II x6 1090t ASUS Crosshair IV Formula Radeon HD 5970 8GB DDR3  
Hard DriveOSPowerCase
500GB x2 Windows 7 64bit CoolerMaster Silent Pro 1000w HAF X 
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post #2 of 4
Some increase in noise will happen, obviously.

Temps depend on the spacing between GPUs on your board...
Computah
(18 items)
 
  
CPUMotherboardGraphicsRAM
2500k @4.5 Asus P8Z68-V GEN3 MSI 770GTX Twin Frozr Gaming 2x4Gb Ripjaws X 
Hard DriveHard DriveCoolingOS
2x HyperX Fury 240gb Raid0 WD Red 3TB NH-D14 Windows 10 Pro 64b 
MonitorMonitorKeyboardPower
Acer X233H 23" BenQ G2420HDB 24" Ducky Shine 3 TKL Corsair TX 750 
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HAF 912 PLUS Logitech G400s Roccat Taito Beyerdynamic DT-770 Pro 80ohm 
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Computah
(18 items)
 
  
CPUMotherboardGraphicsRAM
2500k @4.5 Asus P8Z68-V GEN3 MSI 770GTX Twin Frozr Gaming 2x4Gb Ripjaws X 
Hard DriveHard DriveCoolingOS
2x HyperX Fury 240gb Raid0 WD Red 3TB NH-D14 Windows 10 Pro 64b 
MonitorMonitorKeyboardPower
Acer X233H 23" BenQ G2420HDB 24" Ducky Shine 3 TKL Corsair TX 750 
CaseMouseMouse PadAudio
HAF 912 PLUS Logitech G400s Roccat Taito Beyerdynamic DT-770 Pro 80ohm 
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post #3 of 4
i may be mistaken but i don't think a 5850 is compatible with a 5970, as the 5970 has 2x5870's simply running at 5850 clocks.

regarding your question, everything depends on your motherboard's pcie layout. if you get enough spacing cooling won't be an issue, and i think your PSU would be able to handle the added load.
post #4 of 4
Thread Starter 
I've heard of other people running a 5970 with a 5850; I thought it was odd myself at first but I assume the architecture (if that's the right word) is the same.
As for spacing, looking at it now, it should be fine. The cards will have an agp slot between them. I've always just been a bit conciousness of crossfire setups and the heat they might chuck out into the rest of the case but thanks a lot for your help.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II x6 1090t ASUS Crosshair IV Formula Radeon HD 5970 8GB DDR3  
Hard DriveOSPowerCase
500GB x2 Windows 7 64bit CoolerMaster Silent Pro 1000w HAF X 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II x6 1090t ASUS Crosshair IV Formula Radeon HD 5970 8GB DDR3  
Hard DriveOSPowerCase
500GB x2 Windows 7 64bit CoolerMaster Silent Pro 1000w HAF X 
  hide details  
Reply
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