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H100 + scythe gentle typhoons rpm control

post #1 of 20
Thread Starter 
I have four scythe gentle typhoons to attach to my h100, can I control the rpm of these fans?
I've heard I can't, and I can only measure the rpm, if not, do I just attach the typhoons to the h100 etc and then just attach one of the 4 pin molex cables directly to my psu,
Really need help on this , thanks all
Edited by Mcgrab - 2/26/12 at 1:57am
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post #2 of 20
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post #3 of 20
Low-speed or high-speed GTs?

Neither can be controlled out of the box but you could attach a fan connector to them instead of the molex connector. Or make a fan connector that plugs in to the motherboard header and then goes to a molex connector to which you hook up the fans. Don't connect too many fans on 1 header though (you should check your motherboard manual to see the max Amperage it can deliver. Fans use more Amperage at start-up)
Your motherboard should have an option to regulate the fans via voltage that way, or you could attach them to a fan controller.

If you have the high-speed GT (AP-29, 30 or 31) then read on. I would strongly advise against hooking them up to the motherboard because they pull too much power.

So if you have the high-speeds then there's something else you can do which is actually a better solution IMHO.
PWM mod: http://www.overclock.net/t/1045524/gentle-typhoon-pwm-mod
This will basically make your fans PWM fans. It's easy to do and works flawlessly. I currently run 3 this way. Keep the power lines on the molex to not stress your motherboard.
A few notes:
I don't know if there's a limit on how may times you can split a PWM signal but I currently have it split 4 times (3 Scyhte GTs and 1 MCP35X) and no problems whatsoever.
When connecting them to a single PWM header on the motherboard only allow 1 RPM signal to return to the motherboard otherwise you'll see insane fan speeds ^^ ( motherboard just adds them up).
Edited by Bloitz - 2/26/12 at 2:41am
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post #4 of 20
Thread Starter 
Quote:
Originally Posted by Bloitz View Post

Low-speed or high-speed GTs?
Neither can be controlled out of the box but you could attach a fan connector to them instead of the molex connector. Or make a fan connector that plugs in to the motherboard header and then goes to a molex connector to which you hook up the fans. Don't connect too many fans on 1 header though (you should check your motherboard manual to see the max Amperage it can deliver. Fans use more Amperage at start-up)
Your motherboard should have an option to regulate the fans via voltage that way, or you could attach them to a fan controller.
If you have the high-speed GT (AP-29, 30 or 31) then read on. I would strongly advise against hooking them up to the motherboard because they pull too much power.
So if you have the high-speeds then there's something else you can do which is actually a better solution IMHO.
PWM mod: http://www.overclock.net/t/1045524/gentle-typhoon-pwm-mod
This will basically make your fans PWM fans. It's easy to do and works flawlessly. I currently run 3 this way. Keep the power lines on the molex to not stress your motherboard.
A few notes:
I don't know if there's a limit on how may times you can split a PWM signal but I currently have it split 4 times (3 Scyhte GTs and 1 MCP35X) and no problems whatsoever.
When connecting them to a single PWM header on the motherboard only allow 1 RPM signal to return to the motherboard otherwise you'll see insane fan speeds ^^ ( motherboard just adds them up).


I have the AP-15s mate and my mobo is the rampage 4 extreme, could u give us a quick guide on connecting these fans out of the box to either my mobo or the fan controller using some kind of adapter, I could always run them at full power without a controller I guess?
But yeah, there's a tach cable which is yellow, and the two power molex connectors, which molex do I use etc
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post #5 of 20
Your best bet is to just buy a fan controller if you want to control the fan speed. Personally I love the NZXT fan controllers. I control 7 fans off of my NZXT Sentry LX, 5 of them GTs, and it works a charm.

The only issue you will have is that if you forget to turn the fans on, your CPU isn't getting any active cooling, and a H100 won't work as a passive radiator tongue.gif But, as long as you don't forget that, you're all good.
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post #6 of 20
Thread Starter 
Quote:
Originally Posted by cHaoSphEre View Post

Your best bet is to just buy a fan controller if you want to control the fan speed. Personally I love the NZXT fan controllers. I control 7 fans off of my NZXT Sentry LX, 5 of them GTs, and it works a charm.
The only issue you will have is that if you forget to turn the fans on, your CPU isn't getting any active cooling, and a H100 won't work as a passive radiator tongue.gif But, as long as you don't forget that, you're all good.

Would I just be able to connect the scythe gts ap15s directly to my psu? Have them running all the time? How have other people used 4 scythe gentle typhoons push / pull with the h100?

Just a little confused on how to implement this, I initially thought u could plug all four of these fans into the h100 fan controller
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post #7 of 20
375

This is quick paint mash-up I made to help explain.

You should make 2 (wouldn't put more than 2 fans on 1 header) of these. That way you can have your fans regulated by voltage without having to fiddle too much with them.

EDIT:
You only need 1 fan's RPM line since they'll both run at circa the same speed.
To pull the plugs out of the fan connector you need to push a tiny "hook" down with a knife or something that fits in the cutouts.
If you want to plug them into the H100 fan controller I would check the manual or tech specs to see how many fans you'r allowed to put on 1 fan header.

Okay, that image is very confusing with the colours.
The red 12V line has to go where the yellow line on the molex is.
Edited by Bloitz - 2/26/12 at 3:40am
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post #8 of 20
Sorry for the double-post but apparently my edits aren't being displayed...

so here's some lovely copy-pasta:
Quote:
EDIT:
You only need 1 fan's RPM line since they'll both run at circa the same speed.
To pull the plugs out of the fan connector you need to push a tiny "hook" down with a knife or something that fits in the cutouts.
If you want to plug them into the H100 fan controller I would check the manual or tech specs to see how many fans you'r allowed to put on 1 fan header.

Okay, that image is very confusing with the colours.
The red 12V line from the fan header has to go where the yellow line on the molex is.
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post #9 of 20
Thread Starter 
Would this mean I have to break the red n black wires between the fan and the 3 pin connector?

The AP15 GTs came with this adapter , could i use that instead?

It's the 4 pin adapter that has those two molex plugs and a tach line :-/

Thanks for the effort btw mate, very nice pic
Edited by Mcgrab - 2/26/12 at 3:57am
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post #10 of 20
there are also y cable splitters where you can hook up the fans directly to 12v molex adapter but using only the pwm signal from the mainboard.
this means that the power comes from the psu but the signal can still be used by the mainboard/bios settings
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