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Cool your 4850/4870s down

Everyone coolers must be different to mine, 30% was too loud for me and my case is pretty loud too :confused:

Even at 35% I was idling at about 55 and load nearly 80, this Accelero seemed a great upgrade.
 
willhub said:
Everyone coolers must be different to mine, 30% was too loud for me and my case is pretty loud too :confused:

Even at 35% I was idling at about 55 and load nearly 80, this Accelero seemed a great upgrade.
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Nah mine was too so I didn't bother keeping it on manual and left it at auto settings. Really want an S1 too :)
 
Skyboat said:
Nah mine was too so I didn't bother keeping it on manual and left it at auto settings. Really want an S1 too :)
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Yea its great, ram furmark, no game gets the GPU this hot, was about 57 load and the VRM's only 77-90 now and idling at 42-45 degrees.
 
If you set it to manual fan control won't it mean that it will never go above the setting you put it on regardless of the temperature? I'd quite like it to be on 35% when idle, but I don't mind it going higher than this if it gets too hot.
 
I have a Sapphire 4850 that ran at 60C+ at idle and 85C+ under load. I felt that these temps were really too high. I found a 'modified' Sapphire 4850 bios on the Guru3D.com website and took a chance and flashed the bios...

I now have 51C at idle and it maxes out at 72C under load. The fan speed% flickers between 0% to 34% at idle (fan speed rpm flickers between 1500 and 3000 rpm). As the temps rise under load the fan speed increases and the max I've seen so far at the 72C is 50% fan speed and a little over 5000 rpm.

Does anyone know if Sapphire have a 4850 bios that will produce similar, or better, results?
 
As I suspected and feared - if you change the fan profile to Manual then the card fan speed % never goes beyond what you set the idle speed to which is not ideal, means you can either run it at a reasonable high speed at idle or risk it overheating because when it actually starts doing work it isn't cooled down enough.

I ran Furmark and with Automatic (default) fan settings I could hear the fan getting faster and faster as the test progressed, but with the changes listed above it just stayed at one (slow) speed. :(
 
Durzel said:
As I suspected and feared - if you change the fan profile to Manual then the card fan speed % never goes beyond what you set the idle speed to which is not ideal, means you can either run it at a reasonable high speed at idle or risk it overheating because when it actually starts doing work it isn't cooled down enough.

I ran Furmark and with Automatic (default) fan settings I could hear the fan getting faster and faster as the test progressed, but with the changes listed above it just stayed at one (slow) speed. :(
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correct...i set mine last night at 30% and the temps at idle are lower by 10-12C. But I had a few random crashed tonight...and on one of them i immediately went to the CCC and the temp was mid 90's...far higher than it was when automatic! It was usually only mid 80's before.
 
has anybody got this to work on a 4870X2 ? i cant my profiles are also in a sub folder of the one described. On vista its in the exact same location but a sub folder again called /profiles.

No matter what chanegs i make fan speed doesnt seem to change.
 
Going to be ordering a 4870 on Friday - has anyone found a way of manually set the fan speed, but are also able to use AMD GPU tools to clock higher than 790?
 
Sorry if this is a bit obvious but I have done the following for my 4870...

I am using Vista 64 and so need to use

readydriverplus

http://citadel.x10hosting.com/readydriverplus/

This simulates at boot up the pressing of F8 and using the unsigned driver option without any user intervention. Without this applied to Vista 64 it will not work as Vista complains about ATI Tray Tool.

This allows me to run the latest beta of Ati Tray Tools (which supports the 4x70 cards)

http://forums.guru3d.com/showthread.php?t=270486




then I apply the following settings (you can, of course, apply overclocking settings as well if you wish, but I have not tried that)...




this then means that the above dynamic fan / temp combo applies with my card...




Sorry if the above is not useful but it seems fine to me :)

EDIT: For me the only issue that I have noted is that I have prevented the ATI CCC placing an icon in the system tray as that seems to prevent the ATI tray tool from loading on Windows start up. Otherwise the above works well.
 
Last edited:
Vimes said:
Sorry if this is a bit obvious but I have done the following for my 4870...

I am using Vista 64 and so need to use

readydriverplus

This simulates at boot up the pressing of F8 and using the unsigned driver option without any user intervention. Without this applied to Vista 64 it will not work as Vista complains about ATI Tray Tool.

This allows me to run the latest beta of Ati Tray Tools




then I apply the following settings (you can, of course, apply overclocking settings as well if you wish)...




this then means that the above dynamic fan / temp combo applies with my card...




Sorry if the above is not useful but it seems fine to me :)
Click to expand...

Thanks for the info, just got my 4850 working with a Vista 64 install and was planning on playing with it tonight so this has probably saved a lot of hastle :)
 
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