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IDProjectCategoryView StatusLast Update
0001130SpeedFanFan controlpublic2008-05-06 11:51
ReporterBadslats Assigned Toalfredo  
PrioritynormalSeverityminorReproducibilityalways
Status acknowledgedResolutionopen 
PlatformAsus p5eOSWindows vista 
Product Version4.34 
Summary0001130: Speedfan can't control all fans
DescriptionHi,

I cannot control all fans connected to the Asus p5e.

If I connect the video card to the MB I can set the speed (connection 3 cable black - red - white).
I cannot change the fan speed of the case fans. The case fans are connected to the power supply and with a single cable to the MB. (3 slot: empty - empty - yellow)

I 've tried to upload other shemes under the tab info > get config. Nothing helped

I made a printscreen in the uploaded picture.

i ve read the whole Speedfanbhelp and couldn't find anything. I also google it. I hope it isn't a stupid mistake or somthing...

Anyway thanks for your time and help in advance.

If you need more info don't bother asking !


Thanks !
TagsNo tags attached.
Motherboard Model
Video Card Model7900 gt (x)

Activities

2008-05-05 21:54

 

speedfan.jpg (130,893 bytes)   
speedfan.jpg (130,893 bytes)   

alfredo

2008-05-05 23:54

manager   ~0003475

Did you contact Asus to know which fan can be controlled?

norman02us

2008-05-06 02:12

reporter   ~0003476

Last edited: 2008-05-06 02:13

According to your Motherboard manual at least 2 case fans can be controlled. Have you tried to connect the fans with all 3 pins to the motherboard? Are you using a 3pin or 4pin fan on the CPU_FAN header?

Why did you connect any fan cables to the PSU?

Badslats

2008-05-06 08:52

reporter   ~0003478

Hi supposed all of them can be controlled.

1) Cpu_fan: 4 pin connector (connected with 3pin, 4 pin converter needed to control ('ve read on forum). But not nessecarry to me atm.

2) Pow_fan: to connect power fan

3) Case_fan1: cannot controle (yet)

4) Case_fan2: Graka fan can be controlled. Graka fan is connected with 3 pin black - red - white.
   Case_fan2: Case fan cannot be controlled. Case fan is connected to 4 pin powersupply and to mainbord with single cable empty - empty - yellow

=> or is the fan power by the mainbord? I thought impossible because its a single cable into a 3 pin connector.

4 pin to PWS = power
1 pin to MB = control

norman02us

2008-05-06 09:27

reporter   ~0003480

On the case fan headers only 3pin fans can be controlled and all 3pins have to be connected to the motherboard. I also believe that you should try and remove the fan from the CPU_FAN header because on other Asus Boards connecting a fan here (not PWM) will block the control over the other headers.

Badslats

2008-05-06 10:25

reporter   ~0003483

So a fan can only be controlled if and only if it's connected to the MB with a 3 pin connector.

I have a thermaltake Tsunami with 2 120 mm fans. They have big 4 pin connector witch goes to the powersupply and a single cable into a 3 pin connector for the mainboard. So i thought the cable to the mainboard is for the controlling? Or is the single cable to the mainboard is only for the speed monitoring? Why you need to monitor speed if you can't control the fan? lol
So the speed of the fan is can only be controlled through the power delivered to it?

Thanks in advance for any help

Badslats

2008-05-06 10:45

reporter   ~0003484

I think i've found it! The single cabale to the MB is only for fanspeed monitoring...? There is more here:

http://images.google.com/imgres?imgurl=http://www.hardwarezone.com/img/data/articles/2004/1192/10-fan_header_install.jpg&imgrefurl=http://www.hardwarezone.com/articles/print.php%3Fcid%3D2%26id%3D1192&h=375&w=500&sz=36&hl=nl&start=6&sig2=uUmd-g6XvnmK4FJc0nT2Zg&um=1&tbnid=aj10jkWeKRBzPM:&tbnh=98&tbnw=130&ei=9hcgSN30B6KYxAGd-MDqCw&prev=/images%3Fq%3Dfan%2Bconnector%26um%3D1%26hl%3Dnl.

Maybe you can add this into your help file? Somthing like: Proper fan connection.

Does a fancontroller exist for a 4 pin molex?

regards

norman02us

2008-05-06 11:35

reporter   ~0003485

You could use a 4pin to 3pin adapter to connect the fans to the motherboard. Then, you should be able to control them but monitoring will probably not work.

alfredo

2008-05-06 11:51

manager   ~0003486

I think that such an adapter would certainly still allow fan speed reporting, if the original 4-pin adapter had this info.

Issue History

Date Modified Username Field Change
2008-05-05 21:54 Badslats New Issue
2008-05-05 21:54 Badslats Status new => assigned
2008-05-05 21:54 Badslats Assigned To => alfredo
2008-05-05 21:54 Badslats File Added: speedfan.jpg
2008-05-05 21:54 Badslats Video Card Model => 7900 gt (x)
2008-05-05 23:54 alfredo Note Added: 0003475
2008-05-05 23:54 alfredo Status assigned => acknowledged
2008-05-06 02:12 norman02us Note Added: 0003476
2008-05-06 02:13 norman02us Note Edited: 0003476
2008-05-06 08:52 Badslats Note Added: 0003478
2008-05-06 09:27 norman02us Note Added: 0003480
2008-05-06 10:25 Badslats Note Added: 0003483
2008-05-06 10:45 Badslats Note Added: 0003484
2008-05-06 11:35 norman02us Note Added: 0003485
2008-05-06 11:51 alfredo Note Added: 0003486