I can only see my GPU fan in FanSpeed

[wantwinlose]

I have 3 fans with 4 pins connections each connected to this splitter -
https://www.newegg.com/global/il/Product/Product.aspx?Item=N82E16812423164
This splitter 4 pin female is connected the motherboard only 4 pin slot. (think it's labeled SYS-FAN)
But only the gpu FAN is showing on FanSpeed and hwmonitor shows all 3 fans at 0 RPM.
My motherboard is GA-H110M-S2H (rev 1.0)

 

[Barty1884]

Do you have 3x the same fan?

I would assume, because of the additional power via molex (and potentially mismatched fans), you're not going to see any show up.

You're not going to be able to "see" them independently regardless - as far as the MB is concerned, there is one fan connected.

 

[wantwinlose]

Do you have 3x the same fan?

I would assume, because of the additional power via molex (and potentially mismatched fans), you're not going to see any show up.

You're not going to be able to "see" them independently regardless - as far as the MB is concerned, there is one fan connected.

Yes - https://www.amazon.com/gp/product/B01G5I6O4Q/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
all three.
And also, when i connected a single fan to that slot on the mobo it still didn't show up.

 

[TJ Hooker]

The splitter provides 4 connectors, but only one of those includes a pin for the tachometer reading that allows speed to be monitored. I'm guessing you happened to plug your fans into the other 3 connectors.

I don't know why you don't have a CPU fan speed though. If you have the CPU fan plugged into that splitter, then that's wrong. It should be plugged into the CPU fan header.

 

[wantwinlose]

The splitter provides 4 connectors, but only one of those includes a pin for the tachometer reading that allows speed to be monitored. I'm guessing you happened to plug your fans into the other 3 connectors.

I don't know why you don't have a CPU fan speed though. If you have the CPU fan plugged into that splitter, then that's wrong. It should be plugged into the CPU fan header.

Cpu fan is connected straight to the MB.
Also, i edited the comment before - Even when i connect a single fan straight to the MB - it still doesn't show up.
could the mb simply be faulty?

 

[TJ Hooker]

Try a different monitoring utility. I've always liked hwinfo64. Select "sensors only" when you launch it.

 

[wantwinlose]

Try a different monitoring utility. I've always liked hwinfo64. Select "sensors only" when you launch it.

I can see the CPU RPM there, and gpu - but no other fans.
Is there any converter/splitter that can run these 3 fans and show them up?

 

[TJ Hooker]

When using a splitter you can never monitor the speed of more than one of the fans on the splitter. Might be able to do it with a fan hub though. But if you still don't get any speed for the case fan even with it plugged directly into the mobo, then the splitter isn't your issue. Although it may be worth checking to see if you can monitor the speed of a single fan plugged directly into the mobo using hwinfo64.

 

[Barty1884]

If a single fan connected to the board directly isn't showing up, then it won't matter what splitter you use.

Do they (well, one) appear in the BIOS?

 

[wantwinlose]

If a single fan connected to the board directly isn't showing up, then it won't matter what splitter you use.

Do they (well, one) appear in the BIOS?

I'm not entierly sure if this is it - there was one CPU and the other one called SYSTEM
I couldn't control the system one at all, stuck at 2500 rpm. (even when changed to manual or silent mode.)
https://imgur.com/a/JHDF3hF

 

[TJ Hooker]

Yes, the system one would be your case fan. Is that with the fan connected directly to the mobo? When you tried to change the speed, you were sure to click the "apply to" button and select system 1, and then save the settings right?

 

[wantwinlose]

Yes, the system one would be your case fan. Is that with the fan connected directly to the mobo? When you tried to change the speed, you were sure to click the "apply to" button and select system 1, and then save the settings right?

Yes - Changed settings --- apply to (system 1) - saved and exit bios.