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Permanent fan speed?

Forum CPU & Components : Power Supplies, PC Cases & Case Mods - Permanent fan speed?

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smokedyou911   12-15-2007 at 10:20:00 PM

Hey guys,

I have 2 80mm fans in my computer both rated for ~1600rpm. One always reverts back to 800rpm each time the computer is rebooted. Is there a way I can make it stay at 1600rpm? I'm running the fans through my mobo (Intel d865perl).

------------------------------ P4 3ghz Ht| Intel D865PERL| pc3200 1 (2x512mb)gig of ram 400mhz, 2.5-3-3-8| 80 gb Seagate Barracuda Hd, 300gb WD HD| Asus 7600gs| 1x Lg dvd reader/cd burner| 1x LG dvd burner 300w psu.
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Groveling_Wyrm   12-16-2007 at 04:05:19 AM
- 0 +

I would look for fan controls in your bios and turn them off. Doing this SHOULD cause your fans to run at full speed. Be careful when doing this, just in case it doesn't do this properly, for safety.

------------------------------ I suffer from A.D.O.S.
Attention Deficit..... OOOOOOH!!! SHINY!!!

+5 Victim
 Reply to Groveling_Wyrm
smokedyou911   12-16-2007 at 05:11:01 AM
- 0 +

There already off. Thanks for the suggestion though.

------------------------------ P4 3ghz Ht| Intel D865PERL| pc3200 1 (2x512mb)gig of ram 400mhz, 2.5-3-3-8| 80 gb Seagate Barracuda Hd, 300gb WD HD| Asus 7600gs| 1x Lg dvd reader/cd burner| 1x LG dvd burner 300w psu.
Reply to smokedyou911
scarslilpyro   12-17-2007 at 12:57:38 AM
- 0 +

Sooo easy...take the fan control off...make sure they are on 12v+ (yellow) and not 5v+ (red)

This MIGHT require some modding.

I forget, but something I bought came with a molex (hard drive and cd drive connector with 4 pins) connector to 4 3 pin connectors for fans, 2 12v+ and 2 5v+.

You should look into one of those.

Where do you live? Try frys if you are near one.

If you want to try something software, try speedfan.

------------------------------ http://img211.imageshack.us/img211/2376/anonnymousesteamsigmx2.png
Amd athlon le-1640 socket am2
MSI K9N6PGM-V2
2x1gig pc-6400 800mhz
Reply to scarslilpyro
Shadow703793   12-17-2007 at 01:21:39 AM
- 0 +

You could cut/remove the wire that gives it the RPM reading, this will force the fan to run at 100%.

 

Or

 

use a fan controler

Message quoted 1 times
Message edited by Shadow703793 on 12-17-2007 at 01:22:39 AM
------------------------------ http://farm3.static.flickr.com/2617/3815217176_0a5be7955d_o.gif
http://farm4.static.flickr.com/3553/3818083596_1a772f7162_o.gif
 Reply to Shadow703793
cnumartyr   12-17-2007 at 01:28:48 AM
- 0 +

Shadow703793 wrote :

You could cut/remove the wire that gives it the RPM reading, this will force the fan to run at 100%.

Or

use a fan controler




Call me crazy.. but..

4 Pin = PWM fan control.

3 Pin = 12v, Common, Sense.

12v being the variable changed to adjust fan speed without the 4th pin for PWM control. Sense being the yellow wire which is just a feedback to monitor RPM. I could be way off, but I can run my fans without a yellow wire. I can also cut the yellow wire and feed it back to just the motherboard to monitor RPMs while I have the power to the fan coming from elsewhere.

------------------------------ TeamBAG Member
 Reply to cnumartyr
smokedyou911   12-17-2007 at 02:35:25 AM
- 0 +

i want to be able to monitor that they are running at fulls speed and i have no molex connectors left for them. In other words they gotta go through the mobo, they don't have long enough cables to reach the front of the case, if i bought a fan controller. Thanks for the input, I guess I'm stuck putting it back to 100% when I boot.
Thanks again for the input an help.

Message quoted 1 times
------------------------------ P4 3ghz Ht| Intel D865PERL| pc3200 1 (2x512mb)gig of ram 400mhz, 2.5-3-3-8| 80 gb Seagate Barracuda Hd, 300gb WD HD| Asus 7600gs| 1x Lg dvd reader/cd burner| 1x LG dvd burner 300w psu.
Reply to smokedyou911
scarslilpyro   12-17-2007 at 02:37:36 AM
- 0 +

smokedyou911 wrote :

i want to be able to monitor that they are running at fulls speed and i have no molex connectors left for them. In other words they gotta go through the mobo, they don't have long enough cables to reach the front of the case, if i bought a fan controller. Thanks for the input, I guess I'm stuck putting it back to 100% when I boot.
Thanks again for the input an help.



Yeah, get speedfan.

------------------------------ http://img211.imageshack.us/img211/2376/anonnymousesteamsigmx2.png
Amd athlon le-1640 socket am2
MSI K9N6PGM-V2
2x1gig pc-6400 800mhz
Reply to scarslilpyro
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