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IDProjectCategoryView StatusLast Update
0001705SpeedFanFan controlpublic2010-12-15 13:28
ReporterAndyW1691 Assigned Toalfredo  
Status resolvedResolutionno change required 
PlatformDesktop PCOSWindows 7 Professional 32 bitOS VersionVersion 6.1.760
Summary0001705: Fan speed reported as 0 after resume from sleep - v4.42
DescriptionOn resuming from sleep the fans RPM speed is displayed as 0. This is incorrect as a visual inspection shows that the fans are spinning.

This issue may be related to issue 1703.

The attached PDF provides before and after screenshots.

Steps To ReproduceLet the system enter sleep mode and then reactivate it.
Additional InformationNote that the PC is running the latest BIOS v2.30 and the latest drivers for chipsets and components including the graphics card. Windows 7 is also upto date with all relevant patches applied.

This is a new system built from leftover components after multiple upgrades on other PC's. It has very little software installed.
TagsNo tags attached.
Motherboard ModelASRock P4i65GV
Video Card ModelPNY nVidia GeForce 6200 8x AGP



2010-12-15 11:35


Doc1.pdf (159,538 bytes)


2010-12-15 12:04

manager   ~0005509

Did you enter CONFIGURE / ADVANCED and set FAN DIVISORs to 8 or 16?
Select REMEMBER IT too.


2010-12-15 13:02

reporter   ~0005510

Hi Alfredo! I set the two FAN DIVISORS to 8 and it immediatly started to display the correct fan RPM's. I also selected REMEMBER IT for each divisor.

I then rebooted the system as I was interested to see what it would do on boot up as the original fan divisor value was 2 . Again it correctly reports the fan RPM's and the divisor is set to 8. I'm interested to know how the divisor works as this is not the behaviour I was expecting.

Anyway this issue is resolved. Thanks for your help.


2010-12-15 13:28

manager   ~0005511

Higher divisors are needed to handle slow fans.

Issue History

Date Modified Username Field Change
2010-12-15 11:35 AndyW1691 New Issue
2010-12-15 11:35 AndyW1691 Status new => assigned
2010-12-15 11:35 AndyW1691 Assigned To => alfredo
2010-12-15 11:35 AndyW1691 File Added: Doc1.pdf
2010-12-15 12:04 alfredo Note Added: 0005509
2010-12-15 12:04 alfredo Status assigned => acknowledged
2010-12-15 13:02 AndyW1691 Note Added: 0005510
2010-12-15 13:28 alfredo Note Added: 0005511
2010-12-15 13:28 alfredo Status acknowledged => resolved
2010-12-15 13:28 alfredo Resolution open => no change required