Athlon 64 X2 Stock fan question

[nippyjun]

I installed a A64 X2 4400 with the stock fan. The heatsink is pretty impressive (large with copper).

The only issue is that is gets loud once i start gaming. The speed increases from about 3200 rpm to 5500 rpm and it gets noisy.

Is there any way of changing a bios or other setting so that it doesn't get as fast until the temp goes to a specific level. I'm thinking that it doesn't need to get to over 5000rpm to keep the cpu cool enough.

 

[Capt Caveman]

What are your temps? Based on the motherboard, you may have the ability to control fan speed via the bios or accompanying software. If not, Speedfan will allow you to control the fan speed. However, the fan is speeding-up due to the heat being generated by you cpu and by slowing down the fan, the cpu will only get hotter.

 

[imported_Technomancer]

I'm having the exact same problem with my 4200+. The fan goes from 3,600 to 6,000, but it isn't nearly as bad as my 8,800 RPM motherboard fan that I disconnected. Still, I'm going to replace it with my Zalman 7700 AlCu as soon as I have the time for it and when I'm sure that I can remove the thermal pad material from my CPU and possible mobo safely. Then when the temperatures rise above idling, the fan never drops below 4,000 RPM.

EDIT:

The hottest temps I've ever seen so far are 46 C CPU, 40 mobo, this is with the mobo fan disconnected and stock HSF.

 

[nippyjun]

Originally posted by: Capt Caveman
What are your temps? Based on the motherboard, you may have the ability to control fan speed via the bios or accompanying software. If not, Speedfan will allow you to control the fan speed. However, the fan is speeding-up due to the heat being generated by you cpu and by slowing down the fan, the cpu will only get hotter.

At idle the temp is about 38-39c. At full speed gaming it's about 44c.

My mobo is an asus a8nsli premium. I'm not sure about bios settings to change fan speed. The software that comes with it has something called Qfan but there is no explanation on how to use it that i can find. There is a check box to enable qfan and then a temperature setting that default says 72c. I haven't enabled it yet as i don't know the ramifications of it and what the 72c means.

EDIT:

Ok, i clicked the enable qfan button on the asus (aibooster) sofware. The fan speed imediately dropped from about 3500 to 1200. Then i ran Prime95 and the cpu temp went up to 43 and the fan speed went up to 1900 and is quiet. I found that the qfan setting in the bios was changed to enabled. The AI booster software must have made that change as it was set to Disabled before.


I also found that the 72 degree temp is for a bios setting called "CPU target temperature". My mobo manual says that this setting allows you to set the temperature threshold before the CPU fan stops. It gives settings that range from 55c to 81c. Why would you want the CPU fan to stop if the temp gets too high? Wouldn't it make more sense for the cpu fan to stop if the temp is very low and no fan would be needed?

EDIT: The fan has remained quiet. Doom 3 crashed though. It could be software and not heat related. I'll do some more testing.