ATI 4870 fan fix question

[TheDJ08]

Hello all,

I just did the fan fix and it works great - however I have two cards installed and the fix only is working on the main card. Both fans are detected in Catalyst so I just need to know how to create a profile that does this for both cards.

Any help is appreciated - thanks!

 

[TheDJ08]

Well I am an idiot ;p

I scrolled down and it has a section for the second card - made the same settings.

Another question - I set the fan speed to 65 and at idle it is 56C - other people say they get it down to 35 or so... am I doing anything wrong or how do I get those temps?

 

[swiftpulse]

While the temp would depend on other factors like the air flow in the case and the room temp etc, I really doubt the 35C claim using a reference cooler.

Your temp sounds inline with what I have and what I have heard from other people.

 

[gillagad]

I have on 4870 and I get 44c idle 55ish load with a fanspeed of 40%. Like Swift said, maybe your case doesn't have as good air circulation as others.

 

[TheDJ08]

OK - this is very odd.

First off let me give you some specs - quad core - case is a NZXT TEMPEST.

I have 2 cards crossfired - my second card I just applied the changes to and it is idle at 37C - while my main card is still idle at 56C - I am not sure if there is more airflow getting to the second card?

Is 56C a good temp and is it OK to keep both fans running at 65 all day? (I never turn my comp off)

Also when gaming what should I set the temp speeds at?

Thanks!

 

[SonDa5]

Did a clean install of ATI 8.7 driver and CCC.
Added some Zalman Super Thermal Grease GPU and heatsink area of HD4850.

Idle Temp is 43C.

Make of HD4850 is by PowerColor.

 

[TheDJ08]

One difference is my memory clock is at 900MHZ and yours at 750 - could that make a difference and what does the memory clock do?

 

[gillagad]

One difference is my memory clock is at 900MHZ and yours at 750 - could that make a difference and what does the memory clock do?

Hes got a 4850, the default Memory Clock for the 4870 is 900MHz.

 

[TheDJ08]

Hes got a 4850, the default Memory Clock for the 4870 is 900MHz.

Ahh ok - is the default settings good for the 4850 - right now it is set GPU Clock 750 and Memory clock 900mhz. Also from question above is it ok to run these all day at 65 fan speed w/out damaging the card?

Thanks for your help.

 

[gillagad]

65c should be okay. I can't remember exact what temperature they can handle but I believe it was somewhere in the 100-120c range. Can anyone verify?

 

[TheDJ08]

65c should be okay. I can't remember exact what temperature they can handle but I believe it was somewhere in the 100-120c range. Can anyone verify?

Sorry I should of been more clear.

The main card is running at 56C and second one at 37C idle.

I meant having the fan speed % run at 65 for both cards all day - is that OK.