Fan Speed indicator - AVS Forum
Forum Jump: 
 1Likes
  • 1 Post By Mike99
 
Thread Tools
post #1 of 5 Old 08-10-2014, 12:56 AM - Thread Starter
AVS Special Member
 
Mike99's Avatar
 
Join Date: Sep 2004
Location: Illinois
Posts: 3,022
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 30 Post(s)
Liked: 48
Fan Speed indicator

I want to slow down the case fan but have no idea how fast it is going.

HWMonitor displays only the CPU fan speed.

SpeedFan displays only the CPU fan, however it does list “GPU Fan: 0 RPM”. The last time I checked that little fan was working so I don't know why it shows 0 RPM.

But neither one lists or displays the case fan which is a 3-wire fan plugged into the mobo. Any ideas why there is no reading for the case fan speed?
Mike99 is offline  
Sponsored Links
Advertisement
 
post #2 of 5 Old 08-10-2014, 06:16 AM
AVS Addicted Member
 
Mfusick's Avatar
 
Join Date: Aug 2002
Location: Western MA
Posts: 23,673
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 184 Post(s)
Liked: 935
They make little fan speed controllers that basically have a dial on them to turn down the voltage (speed). Grab one, unplug the fan from its header, plug the fan speed block into the header, then plug fan into fan speed controller output.

It won't tell you the rpm, but you can guess or set it what you want. They are usually turn knobs and analog. Not fancy but it works.

-

"Too much is almost enough. Anything in life worth doing is worth overdoing. Moderation is for cowards."
Mfusick is offline  
post #3 of 5 Old 08-10-2014, 04:44 PM - Thread Starter
AVS Special Member
 
Mike99's Avatar
 
Join Date: Sep 2004
Location: Illinois
Posts: 3,022
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 30 Post(s)
Liked: 48
Quote:
Originally Posted by Mfusick View Post
They make little fan speed controllers that basically have a dial on them to turn down the voltage (speed). Grab one, unplug the fan from its header, plug the fan speed block into the header, then plug fan into fan speed controller output.

It won't tell you the rpm, but you can guess or set it what you want. They are usually turn knobs and analog. Not fancy but it works.
I've seen those on Newegg. I was at Micro Center yesterday & did ask them about speed controllers but they didn't have any. I should have looked online first because they did show one when I got home. I did put it in the shopping cart & it was available for pickup. Apparently the salesperson was not aware they had it.

Anyway Newegg has this for $7.99 with free shipping. It seems to get pretty decent reviews.
http://www.newegg.com/Product/Produc...-020-_-Product

Since I don't have a speed controller at the moment I thought about powering the case fan with 5V and seeing how it does. Obviously I can check temperatures but figured I'd be able to check fan speed also via software. Unfortunately the programs I've tried don't display data for the case fan.

I have a spare fan & IIRC it has both a 3-pin and a Molex connector. That would be relatively easy to change the Molex pinout & see what happens at 5V. I'll probably try that & see how much the temperature changes between full speed & slow speed.
Mfusick likes this.
Mike99 is offline  
post #4 of 5 Old 08-13-2014, 06:17 AM
AVS Addicted Member
 
Mfusick's Avatar
 
Join Date: Aug 2002
Location: Western MA
Posts: 23,673
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 184 Post(s)
Liked: 935
For cheap cost worth a try IMO

-

"Too much is almost enough. Anything in life worth doing is worth overdoing. Moderation is for cowards."
Mfusick is offline  
post #5 of 5 Old 08-13-2014, 06:33 AM
AVS Special Member
 
LastButNotLeast's Avatar
 
Join Date: Feb 2007
Location: 08077
Posts: 4,674
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 231 Post(s)
Liked: 264
You can also try 7 volts.

From Assassin's guide:

My case fans are a little loud. How can I slow them down and make them quieter?
The is pretty easy to do but requires you to reduce the voltage to your fan. Most stock case fans run at 12 volts but can run easily at lower voltages. For instance a 1200rpm fan at 12v will run at 700rpm on 7v. This can be done by powering the fan off a different rail (cable) than normal. Here's how...
Locate a molex connector that is not being used by any of your other hardware:

http://wiki.robotz.com/images/4/48/F...onnector01.png

This is how it normally connects to your case fans:

http://img.photobucket.com/albums/v3...%20mod/12v.jpg

7v rearrangement:

http://img.photobucket.com/albums/v3...n%20mod/7v.jpg

5v rearrangement:

http://img.photobucket.com/albums/v3...n%20mod/5v.jpg

Summary of possible options:

http://www.overclockers.com/forums/a...1&d=1110846598

Downloadable FREE demo discs:
http://www.avsforum.com/t/1475769/de...ently-authored 

Did you really need to quote that entire post in your reply?
LastButNotLeast is offline  
Reply Home Theater Computers

User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off