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IDProjectCategoryView StatusLast Update
0001722SpeedFanHardware supportpublic2011-01-08 13:12
Reporterkeitsi Assigned Toalfredo  
Status acknowledgedResolutionopen 
OSWindows 7 Enterprise 64bit 
Product Version4.42 
Summary0001722: Speedfan reports wrong temperatures with Intel D975XBX2
I am getting invalid CPU/Core temperatures with speedfan.

Here's what speedfan says:

Additional InformationRelated issue:

Motherboard: Intel D975XBX2
CPU: Intel Q6600
OS: Windows 7 Enterprise 64bit english

FAN RPM reading looks OK.

SpeedFan startup log:
Win9x:NO 64Bit:YES GiveIO:NO SpeedFan:YES
I/O properly initialized
Linked ISA BUS at $0290
Linked Intel 82801GB ICH7 SMBUS at $EFA0
Scanning ISA BUS at $0290...
SuperIO Chip=LPC47m182
Scanning Intel SMBus at $EFA0...
Unknown ADM1 Vendor=$80 ID=$9D on SMBus at $18
Unknown ADM3 Vendor=$A9 ID=$A9 on SMBus at $18
Unknown ADM1 Vendor=$81 ID=$A2 on SMBus at $1A
Unknown ADM2 Vendor=$36 ID=$36 on SMBus at $1A
aSC7621 (ID=$6C) found on SMBus at $2E
Unknown ADM1 Vendor=$81 ID=$3F on SMBus at $4E
Unknown ADM3 Vendor=$83 ID=$83 on SMBus at $4E
Found Corsair CSSD-F120GB2 on AdvSMART
Found ST3750640AS on AdvSMART
Found Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz
End of detection
TagsNo tags attached.
Motherboard ModelIntel D975XBX2
Video Card ModelRadeon 4870



2011-01-08 12:28

reporter   ~0005657

I also sent a report using the "Send report" button


2011-01-08 13:10

manager   ~0005658

SpeedFan set Tjmax=90C for your CPU, which is what Intel said in a well known document.


2011-01-08 13:12

manager   ~0005659

By the way: if you were looking at CPU temperature sensor (which reports a negative value), you should ignore that one and use CORE temperatures instead.

Issue History

Date Modified Username Field Change
2011-01-08 00:58 keitsi New Issue
2011-01-08 00:58 keitsi Status new => assigned
2011-01-08 00:58 keitsi Assigned To => alfredo
2011-01-08 12:28 keitsi Note Added: 0005657
2011-01-08 13:07 alfredo Severity major => feature
2011-01-08 13:07 alfredo Status assigned => acknowledged
2011-01-08 13:07 alfredo Category Fan control => Hardware support
2011-01-08 13:10 alfredo Note Added: 0005658
2011-01-08 13:12 alfredo Note Added: 0005659