H100 fans running at full speed ?

scotslad

scotslad

scotslad

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I have a corsair H100.

i have in the bios managed to get all my other fans to slow down and speed up under more and less stress etc.

But, for some reason, even though I have the Q fan funtion enabled and set at standard setting and the h100 set up full on setting 3 (meant to be the correct setting as far as I know for the fans to slow down and speed up automatically), the speed of the fans stay the same full speed even on idle.

I have it connected to the cpu fan header and the other wire goes to the molex on psu, the wires were there, so thats the way I guess its meant to be wired up :confused:

Anyway, I want the h100 fans to slow down when the cpu isnt under stress, does anyone know how this is done, asus, corsair and intel have been absolutely useless in either not responding or just talking garbage.

Hope someone can maybe give me and idea, thanks.

p.s
my pc spec is in my signature.;)
 
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the h100 was running fine until i tried a certain overclock and now doesnt seem to change the fan running speed even at default clocks now.
 
Has anyone tried running it without the molex and just the other cable to the fan header on the board, I am sure I read somewhere on here that if something is connected to the molex it will run at full speed all the time, hmmm, cant remember where the post is though :confused:
 
Afaik the molex powers the lot so kinda need that plugged in. Header is just to monitor pump speed.

Mines been fine and only time fans run full is on start up.

H100 should only run full once coolanthits 40c. Mine is always set to medium (2lights on pump). Only runs full under heavy load.

I'd check molex whilst system running. Give it a shake.

Check pump speed on bios, power might be on but if not pumping well temps of coolant might cause fans to go full.
 
Had you all tried the firmware reset?


Technical Support

The firmware reset only fix the non functioning fan controller only, not a completely dead unit. This is the procedure to reset the firmware, it's probably worth a shot:


To reset the firmware, use the following procedure:

1. While the computer is running, hold down the profile button for approximately five seconds
2. Wait one minute, while the unit continues to run
3. Shut down your computer
4. Press and hold the profile button for five seconds while turning on the power to your computer.

Thanks

(taken off corsair forums)
 
RaveyDaveyUK said:
Afaik the molex powers the lot so kinda need that plugged in. Header is just to monitor pump speed.

Mines been fine and only time fans run full is on start up.

H100 should only run full once coolanthits 40c. Mine is always set to medium (2lights on pump). Only runs full under heavy load.

I'd check molex whilst system running. Give it a shake.

Check pump speed on bios, power might be on but if not pumping well temps of coolant might cause fans to go full.
Click to expand...

The cpu fan header on the motherboard can power a fan and monitor the speed of the fans too, never heard anything about it monitoring the pump at all :confused:

I have my pump set on set on full speed, thats with 3 lights on, as far as corsair say in reviews etc on youtube videos etc it should be set like this so that the fans will automatically get faster and slower under more or less cpu stress etc, seemingly this function doesnt work in setting 1 or 2 (1st and 2nd lights on), but I am not 100% sure about this :confused:

Could you tell me mate (or anyone), what speed are your two H100 stock fans running at on idle and under stress please ?
 
RaveyDaveyUK said:
Had you all tried the firmware reset?


Technical Support

The firmware reset only fix the non functioning fan controller only, not a completely dead unit. This is the procedure to reset the firmware, it's probably worth a shot:


To reset the firmware, use the following procedure:

1. While the computer is running, hold down the profile button for approximately five seconds
2. Wait one minute, while the unit continues to run
3. Shut down your computer
4. Press and hold the profile button for five seconds while turning on the power to your computer.

Thanks

(taken off corsair forums)
Click to expand...

Thanks mate, I have never heard this mentioned before, I appreciate your input etc, but as its new to me I would like to see if anyone has more comments on doing this as my H100 is working fine and I dont want to mess it up, the only prob that I think might be happening just now is like I said before, the fans appear to be running at full speed all the time, its not a great big issue as they aint really that noisey to me, but it would just be good to see them slowing down when the system isnt under stress, thats all ;)
 
They speed up and slow down regardless of what setting you have it on, the only thing that changes is the rate they speed up and the top speed of the fans.

I run my 2600k at 4.6ghz and under load it tops out at 58c and the vans are running just slightly louder than idle.
 
scotslad said:
The cpu fan header on the motherboard can power a fan and monitor the speed of the fans too, never heard anything about it monitoring the pump at all :confused:

I have my pump set on set on full speed, thats with 3 lights on, as far as corsair say in reviews etc on youtube videos etc it should be set like this so that the fans will automatically get faster and slower under more or less cpu stress etc, seemingly this function doesnt work in setting 1 or 2 (1st and 2nd lights on), but I am not 100% sure about this :confused:

Could you tell me mate (or anyone), what speed are your two H100 stock fans running at on idle and under stress please ?
Click to expand...

I have an H100 too, and the connector which plugs into the cpu header only monitors the pump speed (it does not provide power either.) The pump will always run at the same speed, regardless of temperature.

The fans will auto adjust their speed based on the coolant temperature, and it doesn't matter which profile is selected (1, 2 or 3.) The profiles just set the lower and upper ranges for the fan speed.

There is no way to monitor the coolant temp or actual fan speed without Corsair's link commander thingy.

I have mine on profile 1 or 2. The third is waaay too loud.

You could always attach the fans to spare fan headers on your mobo or a fan controller if you want more control over the speed.
 
X3T said:
I have an H100 too, and the connector which plugs into the cpu header only monitors the pump speed (it does not provide power either.) The pump will always run at the same speed, regardless of temperature.

The fans will auto adjust their speed based on the coolant temperature, and it doesn't matter which profile is selected (1, 2 or 3.) The profiles just set the lower and upper ranges for the fan speed.

There is no way to monitor the coolant temp or actual fan speed without Corsair's link commander thingy.

I have mine on profile 1 or 2. The third is waaay too loud.

You could always attach the fans to spare fan headers on your mobo or a fan controller if you want more control over the speed.
Click to expand...


+1
 
Just re-read above Scotslad.

Apologise for asking silly question, but wanted to confirm:

1. Molex is plugged into your PSU?
2. Pump is plugged into cpu fan header?
3. Fans both plugged into top of pump?
 
If you look at the video reviews etc on youtube and all that (good ones), it says that setting the h100 to setting 3 then thats the only way the fans will speed up and slow down depending on the stress on the cpu etc, thats where I got my info from (i think).

No one has yet said what thier fan speeds are, if you use a program like the latest edition of aida64 (2.50) then it shows you all your fan speeds including the h100 fans.

if someone could tell me what thier speeds are running at it would give me/us a better idea of what speeds we are talking about here please :)
 
scotslad said:
If you look at the video reviews etc on youtube and all that (good ones), it says that setting the h100 to setting 3 then thats the only way the fans will speed up and slow down depending on the stress on the cpu etc, thats where I got my info from (i think).

No one has yet said what thier fan speeds are, if you use a program like the latest edition of aida64 (2.50) then it shows you all your fan speeds including the h100 fans.

if someone could tell me what thier speeds are running at it would give me/us a better idea of what speeds we are talking about here please :)
Click to expand...

(and they aint that noisy either even on full throttle, maybe I must be going deaf or you guys have ultra sensative hearing, lol).
 
scotslad said:
If you look at the video reviews etc on youtube and all that (good ones), it says that setting the h100 to setting 3 then thats the only way the fans will speed up and slow down depending on the stress on the cpu etc, thats where I got my info from (i think).

No one has yet said what thier fan speeds are, if you use a program like the latest edition of aida64 (2.50) then it shows you all your fan speeds including the h100 fans.

if someone could tell me what thier speeds are running at it would give me/us a better idea of what speeds we are talking about here please :)
Click to expand...

BUMP : ;)
 
As I said, the H100 doesn't report the connected fan speeds, only the pump speed. So AIDA won't help here. (The pump speed will show up as CPU fan speed.)
 
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