thermostatically-controlled pc fan - Tilted Forum Project Discussion Community

deekylie · 09-25-2008, 06:22 PM

how can i install or put a thermostatically-controlled pc fan in my cpu??
i don't know how?
i need it for my papers..
can someone also include some images or diagrams..
thanks a lot..

Vigilante · 09-25-2008, 10:09 PM

One could skip the hardware and run a program like speedfan. Just need programmable fan headers (most modern motherboards have them).

Another option is to see if your BIOS has thermal controls already, and you just need to enable them.

What do you mean you need it for your papers? I'm lost there.

edit: If you must go the hardware route, simply buy one that's the same dimensions as your stock one, or better yet a more efficient heatsink with a speed-controlled fan (rheostat control if all else fails, like a sunbeam rheobus).

If none of the above makes sense to you, I advise you take it to a PC shop or other specialist and let them do it.

Martian · 09-25-2008, 10:32 PM

Bam!

Done.

Why go through all the hardware hacking when there are off the shelf products that do exactly what you want?

I'm not sure what you mean for your papers, though. If you're planning on doing this for a school project or something, all you need to do for that is to wire in a thermostat in series with a resistor. When the temperature exceeds your preset level, the thermostat trips and bypasses the resistor, which causes the fan to speed up. You could in theory use multiple resistors to create stepping, or even a variable one if you want finer control, but the simplest circuit is one thermostat, one resistor, one fan.

No diagrams. If you really want a wiring diagram, draw it yourself. I've given you everything you need, and if you don't know how to diagram it you shouldn't be doing something like this in the first place.

Deltona Couple · 09-26-2008, 05:37 AM

Quote:

Originally Posted by Martian

Bam!

Done.

Why go through all the hardware hacking when there are off the shelf products that do exactly what you want?

I'm not sure what you mean for your papers, though. If you're planning on doing this for a school project or something, all you need to do for that is to wire in a thermostat in series with a resistor. When the temperature exceeds your preset level, the thermostat trips and bypasses the resistor, which causes the fan to speed up. You could in theory use multiple resistors to create stepping, or even a variable one if you want finer control, but the simplest circuit is one thermostat, one resistor, one fan.

No diagrams. If you really want a wiring diagram, draw it yourself. I've given you everything you need, and if you don't know how to diagram it you shouldn't be doing something like this in the first place.

Good fan there in your link, the only problem is I think the OP was wanting a fan for his CPU. My question would e WHY would you want a fan like that for your CPU? In my OPINION, I would want a fan that runs on its highest setting to keep my CPU the coolest that it can. you NEVER want a fan that might actually stop, because it takes less than a second for todays CPU to start frying with no fan running at all. Your theory is a good idea, but practicality is where I see a potential problem.

Vigilante · 09-26-2008, 07:41 AM

Deltona, no CPUs fry anymore. They throttle down. There isn't a single CPU out now by AMD or Intel that will fry if you remove the heatsink. Socket-A failures are long gone. In an office (or a bedroom) a silent fan is worth it's weight in gold. When you get a game going and noise doesn't matter anyways, it can speed up. Deekylie is most likely not an overclocker, so having a loud fan on a stock CPU is pointless.

I think Dee might be referring to the whole case as the "cpu", which is common for non-geeks. In that case, it could be a case fan Dee is looking for, which never work under thermal control because the air isn't hot enough (and if it is you're screwed) or it could actually be the cpu heatsink. Who knows? Dee will have to specify, and if that's not possible, take it to someone that knows what to do.

Deltona Couple · 09-27-2008, 08:43 AM

Quote:

Originally Posted by luciferase75

Deltona, no CPUs fry anymore. They throttle down. There isn't a single CPU out now by AMD or Intel that will fry if you remove the heatsink. Socket-A failures are long gone. In an office (or a bedroom) a silent fan is worth it's weight in gold. When you get a game going and noise doesn't matter anyways, it can speed up. Deekylie is most likely not an overclocker, so having a loud fan on a stock CPU is pointless.

I think Dee might be referring to the whole case as the "cpu", which is common for non-geeks. In that case, it could be a case fan Dee is looking for, which never work under thermal control because the air isn't hot enough (and if it is you're screwed) or it could actually be the cpu heatsink. Who knows? Dee will have to specify, and if that's not possible, take it to someone that knows what to do.

I guess we will have to agree to disagree on that subject. I recently had an AMD Athlon smoke when the cooling fan stoped operating for a very short time. I was doing some webbrowsing when my computer started acting strange, then the motherboard temp warning came up on the screen, and then all went black. After replacing the cooling fan, i could never get the computer up and running again. daughtercard testing showed that the CPU was unresponsive, so i replaced it and all was back up and running in no time.

Vigilante · 09-27-2008, 09:46 AM

Athlon 462, or athlon 754/939?

LoganSnake · 09-27-2008, 09:58 AM

My fan is auto-controlled based on CPU temp, but it comes with a heatsink as well.

This one: ZEROtherm Butterfly BTF90 Socket 775754939AM2 Copper Base Heatpipes CPU Cooler at TigerDirect.com

09-25-2008, 06:22 PM	#1 (permalink)
deekylie Upright	thermostatically-controlled pc fan how can i install or put a thermostatically-controlled pc fan in my cpu?? i don't know how? i need it for my papers.. can someone also include some images or diagrams.. thanks a lot..

09-25-2008, 10:09 PM	#2 (permalink)
Vigilante Broken Arrow Location: US	One could skip the hardware and run a program like speedfan. Just need programmable fan headers (most modern motherboards have them). Another option is to see if your BIOS has thermal controls already, and you just need to enable them. What do you mean you need it for your papers? I'm lost there. edit: If you must go the hardware route, simply buy one that's the same dimensions as your stock one, or better yet a more efficient heatsink with a speed-controlled fan (rheostat control if all else fails, like a sunbeam rheobus). If none of the above makes sense to you, I advise you take it to a PC shop or other specialist and let them do it. __________________ We contend that for a nation to try to tax itself into prosperity is like a man standing in a bucket and trying to lift himself up by the handle. -Winston Churchill Last edited by Vigilante; 09-25-2008 at 10:12 PM..

09-25-2008, 10:32 PM	#3 (permalink)
Martian Young Crumudgeon Location: Canada	Bam! Done. Why go through all the hardware hacking when there are off the shelf products that do exactly what you want? I'm not sure what you mean for your papers, though. If you're planning on doing this for a school project or something, all you need to do for that is to wire in a thermostat in series with a resistor. When the temperature exceeds your preset level, the thermostat trips and bypasses the resistor, which causes the fan to speed up. You could in theory use multiple resistors to create stepping, or even a variable one if you want finer control, but the simplest circuit is one thermostat, one resistor, one fan. No diagrams. If you really want a wiring diagram, draw it yourself. I've given you everything you need, and if you don't know how to diagram it you shouldn't be doing something like this in the first place. __________________ I wake up in the morning more tired than before I slept I get through cryin' and I'm sadder than before I wept I get through thinkin' now, and the thoughts have left my head I get through speakin' and I can't remember, not a word that I said - Ben Harper, Show Me A Little Shame

09-26-2008, 07:41 AM	#5 (permalink)
Vigilante Broken Arrow Location: US	Deltona, no CPUs fry anymore. They throttle down. There isn't a single CPU out now by AMD or Intel that will fry if you remove the heatsink. Socket-A failures are long gone. In an office (or a bedroom) a silent fan is worth it's weight in gold. When you get a game going and noise doesn't matter anyways, it can speed up. Deekylie is most likely not an overclocker, so having a loud fan on a stock CPU is pointless. I think Dee might be referring to the whole case as the "cpu", which is common for non-geeks. In that case, it could be a case fan Dee is looking for, which never work under thermal control because the air isn't hot enough (and if it is you're screwed) or it could actually be the cpu heatsink. Who knows? Dee will have to specify, and if that's not possible, take it to someone that knows what to do. __________________ We contend that for a nation to try to tax itself into prosperity is like a man standing in a bucket and trying to lift himself up by the handle. -Winston Churchill

09-27-2008, 09:46 AM	#7 (permalink)
Vigilante Broken Arrow Location: US	Athlon 462, or athlon 754/939? __________________ We contend that for a nation to try to tax itself into prosperity is like a man standing in a bucket and trying to lift himself up by the handle. -Winston Churchill

09-27-2008, 09:58 AM	#8 (permalink)
LoganSnake We work alone Location: Cake Town	My fan is auto-controlled based on CPU temp, but it comes with a heatsink as well. This one: ZEROtherm Butterfly BTF90 Socket 775754939AM2 Copper Base Heatpipes CPU Cooler at TigerDirect.com __________________ Maturity is knowing you were an idiot in the past. Wisdom is knowing that you'll be an idiot in the future. Common sense is knowing that you should try not to be an idiot now. - J. Jacques