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ibmkg · 07-30-2007, 05:23 AM

No, not interested in air temp.

But the setup you are mentioning has a flaw i.e. the program/microcontroller would work good only for my rig. I want it to be generic. ( this is when I consider in C/W rating).
Your idea most certainly will work for both summers and winter by maintaining the temp. You are saying that I should take CPU temp readings and control FAN speed accordingly, right?
Furthermore, in summers my room temp remains 31C. Now even with full fan speed I get 33C water temp with CPU at 41 (idle). Following is a consideration (as of yet, I have not practically tested this):

Now if say even at 7V water temp remains 33C, then there is no use running the fan at 12V. My point is that the best my rad/fan can give is 2 degrees above room temp. And if same is true for both 12V and 7V, how can the microcontroller decide to lower the speed? Since water temp remains constant at certain fan speed range.

Thanks.

07-30-2007, 05:23 AM	#6
ibmkg Cooling Savant Join Date: Jan 2005 Location: USA Posts: 129	Re: Q. Making a FAN controller No, not interested in air temp. But the setup you are mentioning has a flaw i.e. the program/microcontroller would work good only for my rig. I want it to be generic. ( this is when I consider in C/W rating). Your idea most certainly will work for both summers and winter by maintaining the temp. You are saying that I should take CPU temp readings and control FAN speed accordingly, right? Furthermore, in summers my room temp remains 31C. Now even with full fan speed I get 33C water temp with CPU at 41 (idle). Following is a consideration (as of yet, I have not practically tested this): Now if say even at 7V water temp remains 33C, then there is no use running the fan at 12V. My point is that the best my rad/fan can give is 2 degrees above room temp. And if same is true for both 12V and 7V, how can the microcontroller decide to lower the speed? Since water temp remains constant at certain fan speed range. Thanks. __________________ NOTE: Suggestions are based on my perceptive. I could be erroneous. Therefore, no one has the right to criticize an individual other than rephrasing and or expressing his own annotations on the subject matter itself.