PC fan is acting wacky!

RTilbury · Dec 21, 2005, 09:01 AM

Today suddenly I noticed that one of my pc fans was making a strange noise, as if it were speeding up and slowing down constantly. I checked my bios information and all temps are in normal range. The cpu fan is set to maximum (its a zalman) and my power supply fans were fine. I have three other fans, and two of them show that they are spinning at normal speeds. But one is fluctuating like crazy! goes from 300-800-12,000rpm. Its all over the place and setting the bios to manual speeds or full dont fix it. Since my temps all look perfect what is the deal? Is it the fan? Please help!

Robert McClelland · Dec 31, 2005, 05:09 AM

time get new fans Did you dust your system out?

Necrosis · Dec 31, 2005, 09:17 AM

Can you temporarily put it on a regular 4 pin molex?

RTilbury · Dec 31, 2005, 07:49 PM

Well I tried plugging the fan directly to the power and it worked fine, So I left it that way. I use a Zalman 4 plug converter for fans and had three spots left after my zalman vga cooler fan. But later that night my only other mobo temp controlled fan started to do the same thing. I had to plug that fan into the main power also. Oh well, I guess I will have to live without temp control. I did try cleaning out my pc. It is clean now.

Dec 21, 2005, 09:01 AM	#1
RTilbury DriverHeaven Lover Join Date: Apr 2004 Location: Southern California, USA Posts: 155 Rep Power: 0	PC fan is acting wacky! Today suddenly I noticed that one of my pc fans was making a strange noise, as if it were speeding up and slowing down constantly. I checked my bios information and all temps are in normal range. The cpu fan is set to maximum (its a zalman) and my power supply fans were fine. I have three other fans, and two of them show that they are spinning at normal speeds. But one is fluctuating like crazy! goes from 300-800-12,000rpm. Its all over the place and setting the bios to manual speeds or full dont fix it. Since my temps all look perfect what is the deal? Is it the fan? Please help!

Dec 31, 2005, 05:09 AM	#2
Robert McClelland PAX Tweaker, PAX Expert. Join Date: Jun 2002 Location: Somewhere in Wood County Ohio Same Town :) Posts: 10,648 Rep Power: 196 System Specs	time get new fans Did you dust your system out? __________________ "XTREME AUDIO IS CRAP!" "There no support for it. It's crapist card on face of the earth it should be throw into the sun" http://www.speedtest.net/result/1949536385.png

Dec 31, 2005, 09:17 AM	#3
Necrosis HardwareHeaven Extreme Member Join Date: May 2002 Location: Ohio Posts: 8,838 Rep Power: 131 System Specs	Can you temporarily put it on a regular 4 pin molex?

Dec 31, 2005, 07:49 PM	Thread Starter #4
RTilbury DriverHeaven Lover Join Date: Apr 2004 Location: Southern California, USA Posts: 155 Rep Power: 0	Well I tried plugging the fan directly to the power and it worked fine, So I left it that way. I use a Zalman 4 plug converter for fans and had three spots left after my zalman vga cooler fan. But later that night my only other mobo temp controlled fan started to do the same thing. I had to plug that fan into the main power also. Oh well, I guess I will have to live without temp control. I did try cleaning out my pc. It is clean now.