Headlines - How to control the fan speed of your Radeon HD 4850/4870

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Unhappy with the automatic fan-speed controller on your Radeon HD 4000 series graphics card? Here's how to set the speed manually.

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Read more.

Clever but it does show a vulnerability, in theory some joker can switch off your fan with a simple xml and make you fry your card it seems, unless it has an automatic GPU shutdown as CPU's took such a long time to acquire but now all have.

Yep it works, but it now sounds like a hurricane. :confused:

I think I am gona turn it back to automatic, much quieter and tbh the temps weren't really bothering me anyway.

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Originally Posted by Wshlist

Clever but it does show a vulnerability, in theory some joker can switch off your fan with a simple xml and make you fry your card it seems, unless it has an automatic GPU shutdown as CPU's took such a long time to acquire but now all have.

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Only if you manually load the hacked XML file which someone just happened to be able to place on your computer in exactly the right place.. all just to have the card throttle itself to stop getting too hot.. no, not what hackers are really going to be interested in if they managed to get that much control over your computer..

You don't have to set it to manual either, you can keep it automatic to maintain some level of ramp up I think.

will it work for a 3870 too?

I just did this on my card, I was running pretty hot at around 63 degrees, I followed the steps and set my value to 60% and my temp dropped to 47 degrees almost 20 degree difference yes the fan is a bit loud but nothing that annoys me, I will probably turn it up to 65% and try to get it a bit lower so I have a bit of room when I play games..

So yes this post is a great post for those of you who didnt want to "test" it out..

Also the way to do this for XP (which is the operating system I am using is a bit different then described here. for that watch this video

youtube.com/watch?v=Xmyp_UqQnQM

sorry I dont have 5 posts to post URL's yet

I created the custom profile, and went to the required directory only to find that the folder was completely empty. I have hidden files and folders set to show and it's still not there. I would really appreciate this because my gpu is idling at 67.C :censored: