How to stop fans being on 100%

[x Princess Leliana x]

I was plugging in a cable, blew into the hole to clear dust, plugged in my HDMI cable, and BOOM, fans ramped straight up to 100%, its extremely loud, and won't go down, help??? its never done this before.

[WiRiZi]

We are talking about GPU fans, yeah?

[x Princess Leliana x]

1 minute ago, WiRiZi said:

We are talking about GPU fans, yeah?

nope, MSI afterburner lists my gpu fans at 40%, what they usually are on.

[TidaLWaveZ]

Have you tried speedfan software? If it doesn't work there should be fan control options in BIOS or UEFI.

[WiRiZi]

1 minute ago, fordaov3rlord said:

nope, MSI afterburner lists my gpu fans at 40%, what they usually are on.

Unless your mobo supports fan control you need to buy a case fan controller to be able to turn them down.

[x Princess Leliana x]

1 minute ago, WiRiZi said:

Unless your mobo supports fan control you need to buy a case fan controller to be able to turn them down.

it has a built in one on the top of the case, and thats turned all the way down, like it always is, I don't get why they randomly turned all the way up to 100%, my only assumption would be it got a bit hot (which has never happened) or a bit of dust got in, but it's been an hour now, surely it'd have solved that problem.

[WiRiZi]

4 minutes ago, fordaov3rlord said:

it has a built in one on the top of the case, and thats turned all the way down, like it always is, I don't get why they randomly turned all the way up to 100%, my only assumption would be it got a bit hot (which has never happened) or a bit of dust got in, but it's been an hour now, surely it'd have solved that problem.

Just to try it. Does it make any diffrence if you turn the fan controllers all the way up?

[x Princess Leliana x]

1 minute ago, WiRiZi said:

Just to try it. Does it make any diffrence if you turn the fan controllers all the way up?

yeah i tried that, using them makes no difference at all.

[WiRiZi]

1 minute ago, fordaov3rlord said:

yeah i tried that, using them makes no difference at all.

What case do you have ?
EDIT: Did the case come with the fan controller?

[x Princess Leliana x]

NZXT Phantom 630

[WiRiZi]

1 minute ago, fordaov3rlord said:

NZXT Phantom 630

What fan controller do you have?

[x Princess Leliana x]

1 minute ago, WiRiZi said:

What fan controller do you have?

Just the built in one that comes with the case, dinky little thing with 8 slots behind the mobo tray.

[WiRiZi]

1 minute ago, fordaov3rlord said:

Just the built in one that comes with the case, dinky little thing with 8 slots behind the mobo tray.

You might want to try and connect the fans directly into the mobo instead of into the fan controller.

[x Princess Leliana x]

1 minute ago, WiRiZi said:

You might want to try and connect the fans directly into the mobo instead of into the fan controller.

Alright, but I still don't get WHY it suddenly ramped up to 100%