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RBE and Sapphire HD 4870 512MB

  • Thread starter Thread starter extr3me
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Hi,

Does anyone know proper fan settings for this GPU?

Maybe we have same card (Sapphire 4870 512MB RED PCB). I realy like the fan controll of the orginal bios. What do you want to change? Keeping the card cooler or less noise? Maybe its handy to post you bios on the forum.
 
Mine is black. You mean u could send me a bios? That would be great...
 
Sapphire never did make a black pcb. Its either red (BUILD BY ATI) or blue (Custom PCB of sapphire).
Sapphire_4870_Toxic_PCB.jpg

Sapphire-Radeon-HD-4870-PCB.jpg
 
I mean with black cooler. Mines is definitely not the red one, so it has to be blue (looks more like green to me :) ). Well when idling my temps are: 50 shader core and dispIO, 54 memIO. Is it too high? When i stress it with furmark i get about 85 shader, 77 dispIO and 80 memIO. If i use default fan settings temps goes over 90
 
I've got a red PCB 4870, that I've recently replaced with a 4890 & using CCC to manually control the fan speed I never hit over 65c.

I set the fan to 33% & it was very cool. But remember the ambient temp & airflow in your case will affect the temp of your card immensely. My Antec 900 case keeps things cool, although the 4890 does get hot, tops out at 72c at about 34% fan speed.
 
Dont worry, those temperatures are normal. They chose for it so the card stays quiet. So long it doesnt exceed far above the 90 degrees you do have the worry.
 
As far I know any temp below 100 is acceptable cause chips start burning over 104. But heat reduces GPUs life time and I want to give it optimal fan settings.
 
As far I know any temp below 100 is acceptable cause chips start burning over 104. But heat reduces GPUs life time and I want to give it optimal fan settings.

I dont worry about that. I always switch to a newer generation before the warrenty ends.

You can try to use the lookup fan table function
Degrees | Fan speed
0 | 25
60 | 27
65 | 30
70 | 34
75 | 39
80 | 45
85 | 52
100| 100
 
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