Comments on: Using SpeedFan to automatically control your PC’s fan speeds

By: Chris Knight

Chris Knight — Fri, 18 May 2012 09:12:50 +0000

This article is a masterpiece of clarity and has shown me exactly how to get the best from this software.
THANK YOU!

By: Mike

Mike — Tue, 15 May 2012 23:56:38 +0000

SpeedFan is shit and this guide is worthless.

By: bidou

bidou — Tue, 13 Mar 2012 10:56:26 +0000

guys what about speedfan can’t read or found my laptop fans ..no fan speed appear to me i don’t know what i should do … the temp. reading all time over than 50 and it can up to 88 sometimes ,please can any one lead me to right way?

By: KP

KP — Sat, 31 Dec 2011 12:06:26 +0000

Answering Cotax’s post above …

1 – doesnt boot up when windows starts … Yes it does!
2 – doesnt remember settings for fans … Yes it does!
3 – doesnt set fan speed to desired when speedfan starts … Yes it does!
4 – - loading time of speedfan is to long … Possibly , but this is a subjective thing , It’s 20 seconds or so in my system , not a problem for me! Perhaps I’m not in that much of a rush?!
5 – - speedfan always detect like 10 fans while i got 3, rest are all duplicates … This is true , but if you read the instructions , you will notice that it’s up to you to ‘filter’ out the irrelevant ones you don’t need. You did read the instructions I hope?

The bottom line is Speedfan is a free program and no-one is forcing you to use it! If you do use it , at least take the time to set it up properly before you start whingeing about it!

Happy New Year folks!!

By: JamesAard1

JamesAard1 — Sat, 31 Dec 2011 11:20:43 +0000

A very useful and informative page! I’d love to see ‘idiots guide’ on every program – whereby when one hovers over a button, it tells you what it does and what the implications are if you change a value etc.etc. Maybe you should do this Peter. I’d love to do it, but I’m one of those idiots!

By: cotax

cotax — Fri, 30 Dec 2011 16:31:11 +0000

Speedfan is just trash…..
- doesnt boot up when windows starts
- doesnt remember settings for fans
- doesnt set fan speed to desired when speedfan starts
- loading time of speedfan is to long.
- speedfan always detect like 10 fans while i got 3, rest are all duplicates.

Just buy a connector extender for the fan to let it rotate at lower volts…

see pic:
http://static.scan.co.uk/images/products/1020426-a.jpg

best option u have if u cant configure it in the Bios.

By: Lazy-B

Lazy-B — Fri, 28 Oct 2011 16:50:50 +0000

I’d like to be able to tie my case fan speeds to my core temps.

This is working great with my exhaust fan hooked up to the sys fan 2 header on a GA-X58A-UD3R mobo. Unfortunately, of the six fan headers on this mobo, only two can be speed controlled – cpu and sys fan2. Two of the other four headers can be detected, but not controlled. And the final two can neither be detected nor controlled.

I’m assuming that I’ll need a fan controller for these fans. Can anyone suggest a fan controller that works well with Speedfan. Can Speedfan detect sensor temp probes on this controller?

By: Lazy-B

Lazy-B — Thu, 20 Oct 2011 05:56:02 +0000

Thank you Peter!

What a fantastic little program. I’d tried Speedfan some time ago and given up.

Thanks to you and others here my machine is running tickity boo! I’m able to tie my case fans to my cpu and northbridge temps. I’m even able to use my cpu fan to help keep my northbridge temps down.

Barry Bateman

By: KP

KP — Thu, 06 Oct 2011 10:20:12 +0000

There seems to be an extra step to setup now in the latest Speedfan! This is what I did to get things going properly.

I’m using v4.44 and I noticed there is an extra tab in the ‘Configure’ window called ‘Fan Control’.

In here tick ‘Advanced fan control’
Click ‘ADD’ button to add a fan controller , name it ‘CPU’ for example.
Highlight ‘CPU’ , tick ‘Controlled Speed’
Pick one of your fans from the drop-down list , I used ‘Speed01′
Now you will see a ‘Temperatures’ list , so click the ‘ADD’ button , a window will pop-up , pick a temperature , I added ‘Temp1′ which is my cpu.
Now highlight this temperature and you will see a ‘response’ graph which Speedfan will use to variate the Fan speed!

I’m just using this with a bit of trial and error at the moment, but it seems to work just fine!

My CPU fan is no longer stuck at MAX speed … try it and see how you get on folks!!

By: neal

neal — Tue, 04 Oct 2011 21:08:01 +0000

Just installed speedfan and trying to decipher what I see. Installed it because I thought I had an overheating issue – my computer was randomly shutting down. Then I got a “CMOS Checksum Bad”. As soon as I installed Speedfan, and then restarted, the fans took off and are constantly 4200-4500 rpm. I know they were on before, but I couldn’t really hear them, and can def. hear them now. Does Speedfan by default run your fans at 100%? And, unless the noise is too irritating, is it best to run your fans at 100%?

While web browsing, this is what my values roughly show, and I’m not sure what they might be referring to, or if any are concerning:

(green check) Temp 1: 39C
(down arrow) Temp 2: 36C
(bright flame) Temp 3: 60C
(green check) HD0: 42C
(down arrow) Core 0: 33C
(down arrow) Core 1: 27C
(down arrow) Core 2: 32C
(down arrow) Core 3: 38C

My Acer Quad Core was only running for a couple minutes before it shut down randomly earlier today…and after the speedfan install it hasn’t shut down for about an hour. I wonder if I should still do something about the SMOS thing…

Thanks for any interpretation anyone can provide!
Cheers