Please tell me the easiest way to reduce the CPU fan speed!

You haev to give us a littel bit more than that.... What type of cpu and HSF setup?

Oops forgot those, specs:

Mobo Shuttle AB60N
CPU Pentium 4 Northwood 2.61Ghz ( stock cooler)

What does HSF mean?

easiest way is to get a fan controller.

other way to put a pencil in your fan and that will reduce the fan speed if not stop it .

but yeah give us a bit more information. why would you want to reduce fan speed? the fan goes at a certain speed for a reason.

Cuz its at 100% and i dont need that much and its noisy at that level. I wanna try to reduce it.

Check your BIOS for any cpu fan speed options. P4's typically have the fan spinning as fast as it needs to to keep the chip cool but it depends on the motherboard.

Cut the black wire from the fan (Ground) and solder it to
any of the red wire (+5v) you see going to drives or motherboard.
This will let the fan run on 7v instead of 12v and much quieter.

I only see an green and yellow wire and i cant adjust the speed of the in the BIOS ( PhoenixAward )

If it is a intel supplied fan, there has to be a black wire. Yellow would be
12v and green would be speed sense. I wonder how the fan is running w/o the ground wire.

Oops! now i see a black wire, but im big pussy so im scared to cut any wires...lols!!11

or, you could buy this

http://www.mwave.com/mwave/skusearch.hmx?SCriteria=BA30057

Ahhhh, ya beat me too it. I was gonna suggest clipping the wires though

Ahhhh, ya beat me too it. I was gonna suggest clipping the wires though

Just unplug the sukka!

Uhm it's a shuttle, small form factor? I'm pretty sure if you unplugged it the whole case would overheat. The CPU fan is the only fan in there! (maybe GPU)

It was a joke. See the thread title. cutting wires isn't the easiest because it requires a tool. Putting in a fan speed controller requires a purchase, etc.

The most simple solution i've found and use sucessfully, is a simple cable you put in between the board and the fan(works on videocards as well as cpu's) that reduces the voltage by itself, without cutting anything.

But start off with a silent slow spinning cooler to begin with get a good quality one.
NRC-1000 Noise/speed reduction cable

or
Nexus Prolong
which can handle 3 cables at once and slows it even down further.

I also use a zalman fanmate in combination.


I've created my pc to be as silent as possible without any modding at all(most parts are from Nexus as well), and it has to be dead silent to be able to hear anything, most of my fans ran at the lowest possible rpm without giving off alarms all the time and still keep my stuff cool even now at 38 celcius outside  
(costs more though if you don't want to do it yourself).

Try Speedfan; it’s a free software program that works with many motherboards and allows you to control fan speed(s) dynamically based on temperature. If your motherboard supports it, then it’s better than buying a hardware solution because of the dynamic control. It gives you much more control than typical BIOS fan control settings which are quite primitive.

One hardware solution is a Zalman FanMate, which allows you to set the voltage to a fan in the range roughly of 12 – 7 V.

I have a CPU fan, GPU fan and the PSU fan. All of those are quiet exept for the CPU one.
Speedfan is very hard to use for me. I did everything it said in the instructions, but i phail.

And my Motherboard's size is 300 x 200.

Forgive me for being serious for a moment, but I thought I'd share this.

I think your options are limited with a Northwood Pentium, but I have my fan set to adjust speed based on cpu temp, and I have my Opteron set to drop it's voltage to 1.1 volts, and drops the multiplier to 4x (from 9x) when idle.

At idle speeds, with reasonably cool room temps, the cpu fan shuts off occasionally, then comes on for a few spins and goes off again.

Btw, I use this box as a DVR, and it stays at 1.1v/4x and idle temps while recording, and when I use it to play games it restores the voltage and overclocks.

So in other words, you use C&Q? It's all automatic...... :?

Ahhhh, ya beat me too it. I was gonna suggest clipping the wires though

Just unplug the sukka!

haha, personally id just buy a new fan if thatfan is bothering you that much. be sure to buy a fan not over 30db's if you do you will hear the noise, hence the noise you hear with that stock fan you got ( i would hope thats a stock fan)

i use shuttle computers, if you go to the bios, under 1 of the options, hardware monitor i think, You can set the fan speed to Ultra Quiet, quiet, medium, full.
If you are using the stock shuttle cooling system, with the shuttle fan plugged into the mobo that is.
No need to buy anything else, cut wires or install software.

But i have a stock Intel CPU cooler.
And heres a pic of my CPU cooler if its neccesay.

PhoenixAward BIOS?

well the shuttles i buy, have shuttle heat pipe systems, which they have used for a while i thought, any how, is ur CPU fan plugged into the BIOS now, or is a molex connecter used (the white plastic thing with 4 pins inside). If its plugged into ur motherboard, just press the "Delete" Key, when the system POSTs. (Where it lists the HDD/CD DRIVE, CPU etc, it will have writing at the bottom left of the screen) Just go in tere have a look around, i think they call it Q-FAN or something like that, under 1 of the options, and just change it.

Mines connected with a 3-PIN connector.

PhoenixAward BIOS?

the bios that sucks and doesnt really allow you to change anything. well at least for the amd one.

Can i control the speeds from here?

http://www.amdzone.com/pics/computers/sff/biostar/330p/...

^^^Click

ou could conrtol ur fan speeds by downloading speed fan 4.28

works for me
google "speed fan 4.28"

But doesnt work for me...

hmm and you got 3 fans right? bios probably doing something to it.

yes thats the one, change CPU FAN from smart to what ever one u want, prolly silent will do.

@dt, i use the amd ones to, what ever my desktop PC can do whether it be overclock or what have u, i can do with my shuttle

its getting time for me to get a new computer

That was a really dodgy picture

That picture isnt taken from my monitorn, and i sont have the SMART thingy there.
Guide me through this, this is what i see...

http://common.packardbell.com/PrsPicDwn/Galaxy-L_Main.g...

good one my friend.......check this one ...you can cut either the black wire or the red wire......and connect in series few rectifier diodes (normal biased) each and everyone of it will reduce the drop with 0,7 volts...or you can use zener diodes ... reversed biased...and the voltage drop is reduces with the zener voltage.....

god sake this is the last time i will post on this thread, u just had it, all u had to do was change the CPU fan speed From Smart to What ever u want, on that latest screen shot its PC Health status

But i dont have the SMART option there........

I had a very loud cpu fan because it was running at full speed, I thought of buying a control hub which had a fan speed control knob and temperature read out of the cpu, but it was too expensive. I wanted a cheap solution.

stumbled across this site where this guy changes the fan to a slightly lower rpm one for two pounds.

http://www.petervis.co.cc/cpu%20fan%20replacement/cpufa...

hope it helps.

^ Bzzt! Necro thread alert!  

Excellent tip, decrease the revs and also it mean the noise for aprx. 80%.
Only for those who scared to connect black wire with red one   Don't afraid but remember that you should solder the wire coming FROM fan not from mobo. Otherwise you will get short circuit.
And one bad new: system have no information about fan actual speed anymore. its look like cpu has not fan at all.