View Issue Details

IDProjectCategoryView StatusLast Update
0002196SpeedFanFan controlpublic2019-06-06 08:18
ReporterfluudahAssigned Toalfredo 
Status acknowledgedResolutionopen 
Platformx64OSWindows 8.1 ProOS Version
Product Version4.49 
Target VersionFixed in Version 
Summary0002196: SpeedFan does not detect motherboard's opt fan speeds.
DescriptionThe motherboard has a total of 8 fan connectors:
2 x CPU Fan connector (4 -pin)
3 x Chassis Fan connector (4 -pin)
3 x Optional Fan connector (4 -pin)

All of the fan connector speeds are detected except for the optional fans. SpeedFan reports their speeds as "0 RPM" and changing their speeds manually does not affect anything.
Steps To ReproduceRun SpeedFan
Additional InformationChip: Nuvoton NCT6779D at $290 on ISA
Tags64-bit, Asus, fan, x64
Motherboard ModelASUS MAXIMUS V FORMULA, BIOS 1903



2014-08-17 11:35

reporter   ~0007494

Same problem, there is no pwm mode entry in advanced tab for sb 7xx/8xx chip on crosshair V Z


2014-08-17 11:41

manager   ~0007495

Can you send me a SEND REPORT (INFO tab) using SpeedFan 4.50 beta and adding a reference to this issue in the notes to the report?
Feel free to contact me by email to receive the very latest beta.


2014-11-11 19:03

reporter   ~0007611

Last edited: 2014-11-11 20:23

View 3 revisions

same problem too. MAXIMUS V FORMULA

Using Speedfan 4.50stable, detected option fan(Aux2 Fan = OPT_FAN1), but reports speeds as 0RPM. not affect anything configure(Manually change,Fans,Speeds,Fan Control,Advanced...)
So, OPT_FANs can only be controlled by FanXpert or bios settings now.

I'll send a info report.


2017-02-21 16:17

reporter   ~0008467

Same problem here with MVF too.

Using Speedfan 4.52, only OPT_FAN1 is detected as Aux2, but reads no speed and no control is available.

Info report submitted.


2019-06-04 16:04

reporter   ~0009265

Hi, same issue here. will send report.

Issue History

Date Modified Username Field Change
2013-11-27 13:51 fluudah New Issue
2013-11-27 13:51 fluudah Status new => assigned
2013-11-27 13:51 fluudah Assigned To => alfredo
2013-11-27 13:54 fluudah Tag Attached: Asus
2013-11-27 13:55 fluudah Tag Attached: 64-bit
2013-11-27 13:55 fluudah Tag Attached: fan
2013-11-27 13:55 fluudah Tag Attached: x64
2014-08-17 11:35 untore Note Added: 0007494
2014-08-17 11:41 alfredo Note Added: 0007495
2014-08-17 11:41 alfredo Status assigned => acknowledged
2014-11-11 19:03 natalie Note Added: 0007611
2014-11-11 19:06 natalie Note Edited: 0007611 View Revisions
2014-11-11 20:23 natalie Note Edited: 0007611 View Revisions
2017-02-21 16:17 Neocray Note Added: 0008467
2019-06-04 16:04 emilio.meneses Note Added: 0009265