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Advise on OCing Sapphire HD5770 in CF

post #1 of 11
Thread Starter 
Hey OCN

I was thinking on OC my CrossFire setup a little - just to see the difference.

But here is the deal, OCing one card is no big deal, I know - but what about when I have two? - I Know you are OCing them both at a time, right? But the top card is alot hotter than the lower one, and I was curious to hear from people who has a HD5770 in CF too - what OC are you running and what temps are each card?

Thanks in advance
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1TB WD - Next: SSD LiteOn DVD Burner Microsoft Windows 7 Ultimate x64 3x HP S2031a 
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post #2 of 11
I have 2x5770 crossfire @ 900/1300. the first card always was hotter at first because it was already active but after a while the temps evened out. I will get back to you with my temps. Hope this much helps
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post #3 of 11
Thread Starter 
Its great to hear - thanks for respons, I'll look forward to see your temps mate

Might be a dumb question though - running stock volt? (Dont really know if you increase volt on the HD5770 really)
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post #4 of 11
My max temp with furmark was 71c on card 1, 70c on card 2@ stock voltages(I dont think you can increase the voltage on my cards). Thats a good temp for Reference cooler cards. If your cards have a non reference cooler you should get better temps. High 80s is ok for these cards but when you get to the high 90s to 100c+ you should be worried. Hope this helps. Feel free to ask any questions.
Edited by Furrby - 4/28/11 at 3:15pm
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post #5 of 11
Thread Starter 
Great - I think ill try your settings soon 900/1300 .. seems like a good clock for daily use.

Thanks mate - rep for you
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Hard DriveOptical DriveOSMonitor
1TB WD - Next: SSD LiteOn DVD Burner Microsoft Windows 7 Ultimate x64 3x HP S2031a 
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post #6 of 11
I have a Single XFX 5770 running at 1.264v. Im waiting on a Sapphire 5770 with confirmed voltage control to arrive from user: rsfkevski. Cant wait to go CF at 950MHz.
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post #7 of 11
Thread Starter 
Quote:
Originally Posted by CHez View Post
I have a Single XFX 5770 running at 1.264v. Im waiting on a Sapphire 5770 with confirmed voltage control to arrive from user: rsfkevski. Cant wait to go CF at 950MHz.
So. Running 900 mhz should be no problem with the HD5770?
Main PC
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i5 760 2.8GHz @ 4.0GHz Asus P7P55D 2x Sapphire HD 5770 in CF 8GB (4x2GB) Corsair XMS3 
Hard DriveOptical DriveOSMonitor
1TB WD - Next: SSD LiteOn DVD Burner Microsoft Windows 7 Ultimate x64 3x HP S2031a 
KeyboardPowerCaseMouse
Logitech G11 Corsair TX650 Chieftec Bravo 2x Logitech MX1000 (No flat battery) 
Mouse Pad
Icemat v2 
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Main PC
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i5 760 2.8GHz @ 4.0GHz Asus P7P55D 2x Sapphire HD 5770 in CF 8GB (4x2GB) Corsair XMS3 
Hard DriveOptical DriveOSMonitor
1TB WD - Next: SSD LiteOn DVD Burner Microsoft Windows 7 Ultimate x64 3x HP S2031a 
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post #8 of 11
Quote:
Originally Posted by FreakaZoidDK View Post
So. Running 900 mhz should be no problem with the HD5770?
Yea 900MHz should be rock stable at stock voltage
HAL 9000
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Phenom II X6 1055T Asus M4A89GTD PRO/USB3 XFX/Sapph HD5770 Crossfire 8GB 
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HAL 9000
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CPUMotherboardGraphicsRAM
Phenom II X6 1055T Asus M4A89GTD PRO/USB3 XFX/Sapph HD5770 Crossfire 8GB 
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post #9 of 11
Thread Starter 
Quote:
Originally Posted by CHez View Post
Yea 900MHz should be rock stable at stock voltage
Great - Thanks!
Main PC
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i5 760 2.8GHz @ 4.0GHz Asus P7P55D 2x Sapphire HD 5770 in CF 8GB (4x2GB) Corsair XMS3 
Hard DriveOptical DriveOSMonitor
1TB WD - Next: SSD LiteOn DVD Burner Microsoft Windows 7 Ultimate x64 3x HP S2031a 
KeyboardPowerCaseMouse
Logitech G11 Corsair TX650 Chieftec Bravo 2x Logitech MX1000 (No flat battery) 
Mouse Pad
Icemat v2 
  hide details  
Reply
Main PC
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i5 760 2.8GHz @ 4.0GHz Asus P7P55D 2x Sapphire HD 5770 in CF 8GB (4x2GB) Corsair XMS3 
Hard DriveOptical DriveOSMonitor
1TB WD - Next: SSD LiteOn DVD Burner Microsoft Windows 7 Ultimate x64 3x HP S2031a 
KeyboardPowerCaseMouse
Logitech G11 Corsair TX650 Chieftec Bravo 2x Logitech MX1000 (No flat battery) 
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Icemat v2 
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post #10 of 11
No problem! I just recieved confirmation that my 2nd 5770 has been shipped
i cant wait!
HAL 9000
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Hard DriveMonitorPowerCase
Crucial C300 64GB, WD Black 1TB 22" + 23" Ultra 750W Cool Master HAF 922 
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Reply
HAL 9000
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CPUMotherboardGraphicsRAM
Phenom II X6 1055T Asus M4A89GTD PRO/USB3 XFX/Sapph HD5770 Crossfire 8GB 
Hard DriveMonitorPowerCase
Crucial C300 64GB, WD Black 1TB 22" + 23" Ultra 750W Cool Master HAF 922 
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