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HD 6950 Hotter then HD 6970

post #1 of 7
Thread Starter 
I have a Reference HD 6950 Full Unlocked to HD 6970 and a HD 6970 in CFX. When i have my cards @ 900Mhz/1.15v they hit about 72C Load in BF3. Both have same temp. This is a bit surprising since HD 6950 is the bottom card. When i increase voltages HD 6950 spikes to 84C and HD 6970 only hit 76C. In average its ~ 6-7C hotter under load 950Mhz/1.25v. What could be the cause of this? PC is set to 0%.
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Ishimura
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post #2 of 7
when you increase the voltage, you should expect temps to increase. is the hotter card on top?
    
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post #3 of 7
Thread Starter 
Quote:
Originally Posted by microfister View Post
when you increase the voltage, you should expect temps to increase. is the hotter card on top?
Thats the thing to Hot card the to one in the bottom. Also i noticed HD 6970 has a different fan.
Ishimura
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Silent Knight
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Ishimura
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post #4 of 7
Quote:
Originally Posted by ZealotKi11er View Post
Thats the thing to Hot card the to one in the bottom. Also i noticed HD 6970 has a different fan.
hmm a little strange i suppose. but again with increased voltage theres going to be a increase in temps. 6950s and 6970s both run pretty hot out of the box. on stress testing a stock 6970 will push 80c, and a stock 6950 will push 77c. the temps arnt really anything to be concerned with i think they are rated to go to 90c, and when that happens then you should be concerned.

do you have adequate airflow in your case? enough intake/exhaust? does it have at least 6 inches of space on all sides(except the base of course). is the room its in reasonable temperature. all of these^^^ are factors that can effect the temps inside the case.
    
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post #5 of 7
Quote:
Originally Posted by ZealotKi11er View Post
Thats the thing to Hot card the to one in the bottom. Also i noticed HD 6970 has a different fan.
Re-apply with good TIM should lower it being at the bottom with much better airflow.
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ケンジ
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post #6 of 7
Quote:
Originally Posted by Ken1649 View Post
Re-apply with good TIM should lower it being at the bottom with much better airflow.
this^^^^ i knew i was forgetting a simple(and easily overlooked) factor
    
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post #7 of 7
Thread Starter 
I just did the Tim last night with AS5 and temps stayed about the same. HD 6970 has stock TIM. HD 6950 had MX-4 before now AS5.
Ishimura
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Silent Knight
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Ishimura
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Silent Knight
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4x GentleTyphoon AP-15 Windows 10 Pro 64-Bit Philips Brilliance BDM4065UC 4K Razer BlackWidow Chroma  
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Sony XB950BT 
CPUMotherboardGraphicsRAM
AMD Phenom II X4 955 @ 4.2GHz ASUS M4A79XTD EVO AMD Radeon HD 7970 3GB @ 1200/1500 2x 4GB G.SKILL Ripjaws X DDR3-1600 
Hard DriveHard DriveHard DriveCooling
OCZ Agility 3 60GB WD Caviar Green 1.5TB 2 x Seagate Barracuda 2TB XSPC Raystorm 
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