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IDProjectCategoryView StatusLast Update
0001948SpeedFanHardware supportpublic2012-03-07 10:48
ReporterOman Assigned Toalfredo  
Status acknowledgedResolutionopen 
PlatformWindowsOSWindowsOS Version7 x32 SP1
Product Version4.45 
Summary0001948: Hangs after wake-up from sleep
DescriptionApp works great until PC goes to sleep. Upon wake-up Speedfan UI locks up with status/log window repeating "Waiting SMBus IDLE..."

At this point the GUI is frozen and fans won't speed back up, causing PC to overheat. If the app is killed from task manager and then restarted it can then talk to the SMBus without problems, but the configuration is completely messed-up and has to be recreated.

Steps To ReproduceGet setup properly.
Start SF normally.
Put PC to sleep.
Upon wake-up SF is locked up.
All other apps are fine.
Additional InformationNormal startup log:

Win9x:NO 64Bit:NO GiveIO:NO SpeedFan:YES
I/O properly initialized
Linked ISA BUS at $0290
Linked Intel 82801GB ICH7 SMBUS at $3000
Found nVidia GeForce GTX 470
Linked nVidiaI2C0 SMBUS at $3D403E3F
Linked nVidiaI2C1 SMBUS at $3D403637
Linked nVidiaI2C2 SMBUS at $3D405051
Scanning ISA BUS at $0290...
SuperIO Chip=LPC47m182
Scanning Intel SMBus at $3000...
aSC7621 (ID=$6C) found on SMBus at $2E
AD7416 found on SMBus at $4C
AD7416 found on SMBus at $4E
Scanning I2CNVidia SMBus at $3D403E3F...
ADT7473 (ID=$73) found on SMBus at $2E
Scanning I2CNVidia SMBus at $3D403637...
Scanning I2CNVidia SMBus at $3D405051...
Found ST3320620AS on AdvSMART
Found Intel(R) Core(TM)2 Quad CPU @ 2.40GHz
End of detection
Loaded 0 events

Hardware scan when trying to send a report through SF hangs computer hard, have to pull power cord. Even holding the power button won't turn it off.
TagsNo tags attached.
Motherboard ModelIntel OEMD975XBGG1 (Gateway FC8040, Intel Q6600, 4GB DDR2)Mainboard : Intel OEMD975XBGG1
Video Card ModelVideo Card : NVIDIA GeForce GTX 470 Video Card : NVIDIA GeForce GTX 470 NVIDIA GeForce GTX 470



2012-03-07 10:48

manager   ~0006872

My guess is that the video card communication stops working. Please, contact me by email (alfredo [at] so that we can further investigate.

Issue History

Date Modified Username Field Change
2012-03-04 05:39 Oman New Issue
2012-03-04 05:39 Oman Status new => assigned
2012-03-04 05:39 Oman Assigned To => alfredo
2012-03-07 10:48 alfredo Note Added: 0006872
2012-03-07 10:48 alfredo Status assigned => acknowledged