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IDProjectCategoryView StatusLast Update
0000652SpeedFanHardware supportpublic2007-05-26 23:54
ReporterSurvivor1979 Assigned Toalfredo  
PrioritynormalSeverityfeatureReproducibilityalways
Status assignedResolutionopen 
OSWindowsOS VersionXP SP2 
Product Version4.30 
Summary0000652: SpeedFan does not give correct voltage readings from Winbond W83627EHF on Asrock 939DUAL-VSTA
DescriptionThe motherboard voltages of the Asrock 939DUAL-VSTA are not correctly read by SpeedFan. 12V displays as 7V and there is an entry AVcc displaying as 3.2V on my system.
SpeedFan 4.29 detected & read more voltages from this chip, but all of them displayed wrong.

Additional InformationNOTE: CPU vcore is found & displayed correctly.

I've send the ACPI table with the tool, so it is not attached to this feature request.

939DUAL-SATA2, that looks a lot like the 939DUAL-VSTA motherboard, correctly shows the available voltages.

If you need more info, please let me know.
TagsNo tags attached.
Motherboard Model
Video Card Model

Activities

2006-10-05 00:29

 

debug.nfo (20,732 bytes)

jtsn

2007-05-26 23:54

reporter   ~0002552

Last edited: 2007-05-27 18:39

The Asrock 939Dual-VSTA sensor chip has 7 voltage inputs and the following conversion factors from the raw values:

0: Vcore = raw / 125
1: Vcore = raw / 125
2: DRAM voltage = raw / 80
3: DRAM voltage = raw / 80
4: +3.3V = raw * 0.016
5: +5V = raw * 0.024
6: +12V = raw * 0.053 - 0.1

Source: My own research. All values except DRAM-voltage are verified by comparing them to the BIOS display and measuring them with a digital voltmeter.

Issue History

Date Modified Username Field Change
2006-10-05 00:29 Survivor1979 New Issue
2006-10-05 00:29 Survivor1979 File Added: debug.nfo
2007-05-26 23:54 jtsn Note Added: 0002552
2007-05-27 18:39 jtsn Note Edited: 0002552