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where to plug kuhler 620 on motherboard for gfx cooling

post #1 of 17
Thread Starter 
i will be doing the mod with a dwood bracket and the antec kuhler 620. but im wondering which motherboard header should i put the 620 in? my corsair h80 is already in the cpu header. i have a gigabyte z68x-ud3h-b3 motherboard.

also do you guys recommend that i use the stock antec fan so that i can take advantage of the auto fan speed that corresponds to temperature? or should i use a push/pull setup and hook them to my fan controller? the only thing that ****s me around about that is that i would have to keep an eye on my temps and adjust the speed accordingly.

any help is appreciated, thanks.
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Black Ninja
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post #2 of 17
However.. you .. want.

I have a had a couple of different fans on my 620's rad with pretty minimal impact on temps.

What will really make the difference is rad placement. place it somewhere to bring in fresh air and all will be good.
post #3 of 17
Thread Starter 
Quote:
Originally Posted by Xinoxide View Post

However.. you .. want.

I have a had a couple of different fans on my 620's rad with pretty minimal impact on temps.
What will really make the difference is rad placement. place it somewhere to bring in fresh air and all will be good.

skipped the main question though, what motherboard header will work to power pump and control fan speed based on temp? any of the system fan headers?

and i have both of my radiators set up as exhausts, that way theres virtually no hot air expelled into my case besides the heat off the ram and other modules, which is very minimal.
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post #4 of 17
You mean you havent read your boards manual? It will tell you what headers have what features.
post #5 of 17
Thread Starter 
Quote:
Originally Posted by Xinoxide View Post

You mean you havent read your boards manual? It will tell you what headers have what features.

well i didnt think that most people put pumps and such on normal sys fans so i wanted to get an experience opinion.
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post #6 of 17
OH! The pump on the kuhler isnt really deisgned like some of the full fledged pumps out there, its really just enough for the kuhler, and designed to be easy so it works on fan headers.

As long as your pump doesnt buzz, I would say any header, or perhaps even a molex adapter. If it does buzz, a small reduction in pump speed is usually a viable fix.

The fan can be plugged into any speed controllable fan header, Or even the heads fluid temperature controlled fan cable.
post #7 of 17
Thread Starter 
Quote:
Originally Posted by Xinoxide View Post

OH! The pump on the kuhler isnt really deisgned like some of the full fledged pumps out there, its really just enough for the kuhler, and designed to be easy so it works on fan headers.
As long as your pump doesnt buzz, I would say any header, or perhaps even a molex adapter. If it does buzz, a small reduction in pump speed is usually a viable fix.
The fan can be plugged into any speed controllable fan header, Or even the heads fluid temperature controlled fan cable.

well if i only use 1 fan with hte kuhler it can be plugged in line with the pump. but idk ill have to play around with the different headers and see if they work right.
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post #8 of 17
Thread Starter 
which fan header should i plug the 620 into in order to be able to auto adjust the fan

my motherboards fan header are as follows...im assuming use sys fan 2?

Sys_fan1 and Pwr_fan headers always run at full speed
- Sys_fan2 header runs with voltage control but you can only control it with Speedfan, bios and ET6 have no settings for it.
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post #9 of 17
I've actually been wondering because I don't know anything about water cooling - does PWM work for the Kuhler's pump? Is it desirable for *any* pump (risk of turning off and air bubbles forming)?

Also, I disconnected my CPU heatsink from my PWM header and plugged one of my Kuhler's in there with the fan connected to the pump's header and didn't notice any changes in fan speed with speedfan or visibly/audibly - is PWM actually a feature of the Kuhler 620?

Anyway, AFAIK you can't have "auto" control without connecting it to a PWM header or a fan controller. Maybe speedfan will let you setup a profile for your system fan headers.

I don't own your board, but IME Gigabyte boards work like mine and most others - only one PWM header for the CPU and two or six system fan headers. If you try and split a single PWM header to cool two different sources it should still work in theory but speedfan and the like will give you weird temperatures and fan speeds. Alternatively there's a PWM header on you GPU - Gelid makes a cable that would allow you to connect your Kuhler there and control the speed via MSI Afterburner or an equivalent, but you might want to keep that header open for a fan for your VRMs (although you could probably split that too).

I put my pumps on one system fan header running at 100% and my radiator fans on another running at 50% (lowest my motherboard will go).
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post #10 of 17
Quote:
Originally Posted by claes View Post

Alternatively there's a PWM header on you GPU - Gelid makes a cable that would allow you to connect your Kuhler there and control the speed via MSI Afterburner or an equivalent, but you might want to keep that header open for a fan for your VRMs (although you could probably split that too).
^this is what you're asking for
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