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IDProjectCategoryView StatusLast Update
0001857SpeedFanFan controlpublic2011-08-24 22:44
Reportersewing1243 Assigned Toalfredo  
Status acknowledgedResolutionopen 
PlatformHP a220n Tower PCOSMicrosoft Windows XP HomeOS VersionSP3
Product Version4.44 
Summary0001857: Tempature starts going up, fans running at half speed
DescriptionI notice from time to time that the temperature reading in the task bar will start to climb. When I open the Speedfan window the fans speed will be indicating at about half their maximum speed, yet the fan speed percentages will have slewed to 100% (which indicates to me speedfan has attempted to increase fan speed). If I attempt to manually manually lower the fan speed with the up and down buttons Speedfan will slew the fanspeeds back to 100% and then both the fan speed indicators will indicate speeds have been increased to 100% and I can hear the fans pick up speed.
Steps To ReproduceThis seems to be related to something in the Firefox browser (currently running ver 5.0), but I cannot duplicate the error a 100% of the time. (I filled out this report using the Firefox browser and the problem did not appear)
TagsNo tags attached.
Motherboard ModelASUS A7N8X-LA (hp name Explorer 2)
Video Card ModelNiVida GeForce 6200



2011-08-17 17:17

manager   ~0006383

Did you make sure that the correct temperature is controlling the fan speed?
SpeedFan 4.44 sets fan speeds more aggressively. Previous versions avoided setting PWM speed to a certain value if it was already set. SpeedFan 4.44 sets it again.


2011-08-18 21:51


speedfan1.JPG (40,589 bytes)   
speedfan1.JPG (40,589 bytes)   


2011-08-18 22:02

reporter   ~0006388

Last edited: 2011-08-18 22:03

I have actually noticed this problem with previous versions of Speedfan. The fan speeds of both fans drop in half even though speed fan appears to attempt to drive them to 100% when the tmpature increases. I've uploaded a screen shot of the Speedfan screen in normal operation (speedfan1.jpeg). Since I cannot consistantly duplicate the problem I will upload a screenshot of the problem as soon as possible.


2011-08-18 22:21


speedfan2.JPG (40,920 bytes)   
speedfan2.JPG (40,920 bytes)   


2011-08-18 22:24

reporter   ~0006389

Please see speedfan2.jpegto to see a screenshot of the problem. If I click the down buttons on the 'CPU Fan' and 'Case Fan' controls the fan speeds will both drive to a 100% and the tempatures will start to come down.


2011-08-20 17:43

manager   ~0006395

Could you, please, upload the output of a SEND REPORT (INFO tab)?


2011-08-20 19:38

reporter   ~0006396



2011-08-21 10:46

manager   ~0006399

Are you using the standard or the Advanced Fan Control method?


2011-08-22 00:26

reporter   ~0006400

Standard Fan Control method


2011-08-22 11:33

manager   ~0006401

Some other tool is interfering. Advanced Fan Control is more aggressive setting fan speeds. Give it a try or disable the other tool.


2011-08-24 22:44

reporter   ~0006408

Last edited: 2011-08-24 22:45

It took me a couple tries to figure out how to make the advance fan control work, but now that I have it appears to have solved the problem (plus the fan speeds seem to have a smoother function. Not such radical changes over small changes in temp).

Issue History

Date Modified Username Field Change
2011-08-13 21:28 sewing1243 New Issue
2011-08-13 21:28 sewing1243 Status new => assigned
2011-08-13 21:28 sewing1243 Assigned To => alfredo
2011-08-17 17:17 alfredo Note Added: 0006383
2011-08-17 17:17 alfredo Status assigned => acknowledged
2011-08-18 21:51 sewing1243 File Added: speedfan1.JPG
2011-08-18 22:02 sewing1243 Note Added: 0006388
2011-08-18 22:03 sewing1243 Note Edited: 0006388
2011-08-18 22:21 sewing1243 File Added: speedfan2.JPG
2011-08-18 22:24 sewing1243 Note Added: 0006389
2011-08-20 17:43 alfredo Note Added: 0006395
2011-08-20 19:38 sewing1243 Note Added: 0006396
2011-08-21 10:46 alfredo Note Added: 0006399
2011-08-22 00:26 sewing1243 Note Added: 0006400
2011-08-22 11:33 alfredo Note Added: 0006401
2011-08-24 22:44 sewing1243 Note Added: 0006408
2011-08-24 22:44 sewing1243 Note Edited: 0006408
2011-08-24 22:45 sewing1243 Note Edited: 0006408