HD 4850 Fan Revving Really High
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- Oct 24, 2009 7:04 pm PT
I've noticed in the past few weeks that the fan on my HD 4850 all of a sudden seems to have a mind of its own. I know it's probably supposed to dynamically adjust fan speed according to load, but recently it revs up really high. I first noticed this when playing OF : DR since the fan would sound like it was running at 90% the whole time. Now it's also doing it in WoW, which I know is NOT graphically intense. I don't remember it always being like this. Is there a setting where you can lock fan speed, maybe in CCC? It is just really distracting with how loud the fan can become.
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- Oct 24, 2009 7:09 pm PTEverybody gets one.
[QUOTE="stoutlad"]
I've noticed in the past few weeks that the fan on my HD 4850 all of a sudden seems to have a mind of its own. I know it's probably supposed to dynamically adjust fan speed according to load, but recently it revs up really high. I first noticed this when playing OF : DR since the fan would sound like it was running at 90% the whole time. Now it's also doing it in WoW, which I know is NOT graphically intense. I don't remember it always being like this. Is there a setting where you can lock fan speed, maybe in CCC? It is just really distracting with how loud the fan can become.
[/QUOTE]
You can control the fan speed manually in CCC by unlocking ati overdrive then setting the fan speed by percent. I keep mine around 55% or so.
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- Oct 24, 2009 7:16 pm PT
I have "Enable Manual Fan Control" checked and set to 50%, but it still revs up in games. I'm not sure what is going on.
Edit: It seems like it has something to do with big draw distances. Not sure though.
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- Oct 24, 2009 7:25 pm PT
Games use more power and therefore generate more heat so the fan needs to work harder to keep it cool..?- Please wait. Quick reply will be available shortly.
- Oct 24, 2009 7:29 pm PT[QUOTE="Shadowhawk000"]Games use more power and therefore generate more heat so the fan needs to work harder to keep it cool..?[/QUOTE] Thing is it didn't use to do this. Maybe new drivers caused it? Although I haven't updated those in a while. My point is that this is a recent development that I cannot explain. I haven't changed any hardware, I haven't changed any settings, nothing has changed. I just want a way to lock the fan speed so I can keep it quiet, and the option in CCC isn't doing that.
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- Oct 24, 2009 7:39 pm PT
CPU: Phenom II 940 ---------------------------GPU: Gigabyte 4870x2 2gb
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[QUOTE="stoutlad"][QUOTE="Shadowhawk000"]Games use more power and therefore generate more heat so the fan needs to work harder to keep it cool..?[/QUOTE] Thing is it didn't use to do this. Maybe new drivers caused it? Although I haven't updated those in a while. My point is that this is a recent development that I cannot explain. I haven't changed any hardware, I haven't changed any settings, nothing has changed. I just want a way to lock the fan speed so I can keep it quiet, and the option in CCC isn't doing that.[/QUOTE] no the revving up happened to my 9800gtx+ before and it was because i overclocked it too high and it kept overheating so the fan would go up when the clocks went to its max
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- Oct 24, 2009 10:04 pm PT
Did you check for dust in the heatsink assembly?
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- Oct 24, 2009 10:49 pm PTMaoTheChimp wrote:
Did you check for dust in the heatsink assembly?
I have yet to test it on games yet, but the card (and the inside of my case in general) had quite a bit of dust in it. It just happened to be right on the perimeter of the fan, sucked up against the vents. A perfect little lint wall that was no doubt screwing with airflow. I don't know if this will fix the problem yet, but it certainly couldn't help. Sometimes I just over think these things, and I appreciate the reminder of the simple solution
[QUOTE="MaoTheChimp"]Did you check for dust in the heatsink assembly?
[/QUOTE] I have yet to test it on games yet, but the card (and the inside of my case in general) had quite a bit of dust in it. It just happened to be right on the perimeter of the fan, sucked up against the vents. A perfect little lint wall that was no doubt screwing with airflow. I don't know if this will fix the problem yet, but it certainly couldn't help. Sometimes I just over think these things, and I appreciate the reminder of the simple solution :)- Please wait. Quick reply will be available shortly.
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