System fan wont work unless i push it but the led is on

[coldPanosM]

Consair af 120 quiet edition blue led wont work unless i push it by hand but the led is on.In the first week it worked perfectly but recently i realized that it isnt spining ,only the led worked.Then i pushed it with my hand and then worked but the maximum rpm that it reached was around 500 but in the first week it was around 1100 .
Your help would be appreciated.
Sorry for my bad english

 

[Sedivy]

Each fan has a minimum rpm and a max rpm it will work at. If you connected your fan to a system fan port on the motherboard, go into bios and check what that system fan port is set to voltage/dc controlled and not PWM controlled. Then adjust your temp/rpm curve to what you want depending on what your bios supports in terms of fan control.
Idea being that 7V (its lowest voltage cutoff below which it won't work) should be just below the temperature at which you want your fans to start spinning.
LED typically plugs into a completely separate port so it won't be affected.

 

[coldPanosM]

Each fan has a minimum rpm and a max rpm it will work at. If you connected your fan to a system fan port on the motherboard, go into bios and check what that system fan port is set to voltage/dc controlled and not PWM controlled. Then adjust your temp/rpm curve to what you want depending on what your bios supports in terms of fan control.
Idea being that 7V (its lowest voltage cutoff below which it won't work) should be just below the temperature at which you want your fans to start spinning.
LED typically plugs into a completely separate port so it won't be affected.

 

[coldPanosM]

I have a gigabyte mobo and the bios are weird ,how do i do that?

 

[Sedivy]

Uh..ok. Well gigabyte should have fan utility in your bios. Depending on which mobo you have, it'll look different. You want a utility that'll say q-fan or smartfan within the bios. If the bios gives you advanced and easy view, go for advanced or else you may not be able to see it. Might be easier if I knew what mobo you have so I know which bios it's using.

 

[coldPanosM]

Uh..ok. Well gigabyte should have fan utility in your bios. Depending on which mobo you have, it'll look different. You want a utility that'll say q-fan or smartfan within the bios. If the bios gives you advanced and easy view, go for advanced or else you may not be able to see it. Might be easier if I knew what mobo you have so I know which bios it's using.

 

[coldPanosM]

Uh..ok. Well gigabyte should have fan utility in your bios. Depending on which mobo you have, it'll look different. You want a utility that'll say q-fan or smartfan within the bios. If the bios gives you advanced and easy view, go for advanced or else you may not be able to see it. Might be easier if I knew what mobo you have so I know which bios it's using.

 

[coldPanosM]

I have gigabyte 78lmt-usb3 and i have CMOS .There is no such an option in there I think.What do i do now ? Sorry for my noob questions

 

[Sedivy]

Ohh...that's a bit older board. I don't know if that will actually offer any useful fan control.
I'm not sure what to tell you. I'm sure that gigabyte utilities will work either.
If you load something like SpeedFan, are you able to access fan speeds at all?

 

[coldPanosM]

Ohh...that's a bit older board. I don't know if that will actually offer any useful fan control.
I'm not sure what to tell you. I'm sure that gigabyte utilities will work either.
If you load something like SpeedFan, are you able to access fan speeds at all?

 

[coldPanosM]

I think speedfan is free allright?

 

[Sedivy]

Yes speedfan is free. It also tends to support older motherboard models so it might give you a measure of control over that fan....maybe. No guarantees it'll recognize your board correctly or that your hardware will let you control the fan at all.

 

[coldPanosM]

Thanks for helping me XD