ASUS Z87I-Pro and four fans to control

[KingShinobi]

Hello everyone,

I want to build my new gaming PC based on the ASUS Z87I-Pro which offer three PWM connectors for fans. All together I want to install four case fans, all 3-pin.

Front: 230mm
Top: 2x120mm
Rear: 140mm

My question are: Can I use a PWM splitter like this one to combine the two top fans? http://www.akasa.com.tw/update.php?tpl=product/product.detail.tpl&no=181&type=Cables&type_sub=Fan%20...

I guess I cannot control them separatly when I use the splitter, but that is not a problem. My concern is just, that the fans are all only 3-pin and maybe they don't work with a PWM splitter.

If that doesn't work, does anyone know any other workarounds (expect a fan control like the Bitfenix Recon)?

Thank you in advance!


BR

[Chino]

Welcome to the Republic of Gamers forum, KingShinobi.

A little heads up for you. Check your fan's power draw before you go connecting them to the fan headers. The fan headers on your motherboard support a maximum of 1A fan power. So as long as the power draw for both fans don't exceed 1A, you can use a Y splitter to connect both of them to one header.

You can use that Akasa PWM splitter with no problems. But if you're looking for a little bit of style, Bitfenix has some sleeved ones with the color of your choosing. 😉

[KingShinobi]

Thx fot the quick reply. The fans would be two bitfenix spectre pro 120mm. Would they work or do you have some other suggestions for a good amd silent fan?

[Chino]

The COUGAR CF-V12HPB is a pretty awesome PWM fan. It's pretty silent at 17.9 dBA but moves around 70.5 CFM of air.

[KingShinobi]

Ok thx, but the spectre should work as well, right? 0,11A do they say on the bitfenix homepage

[Chino]

KingShinobi wrote:
Ok thx, but the spectre should work as well, right? 0,11A do they say on the bitfenix homepage

Yeah, they'll work without problems. 😉

[Praz]

KingShinobi wrote:
HAll together I want to install four case fans, all 3-pin.

My question are: Can I use a PWM splitter like this one to combine the two top fans? http://www.akasa.com.tw/update.php?tpl=product/product.detail.tpl&no=181&type=Cables&type_sub=Fan%20...

This will not work. Connecting 3 pin fans to that adapter will result in the fans running full speed. If you are using 3 pin fans the fan power needs to be provided by the motherboard's fan header for control of the speed

[KingShinobi]

Thank you Praz. Chino already suggested a simple Y splitter, which will work and also not overload the header, since the fans only operate at 0,11A.

[Praz]

KingShinobi wrote:
Thank you Praz. Chino already suggested a simple Y splitter, which will work and also not overload the header, since the fans only operate at 0,11A.

I must have missed that. I read that the PWM splitter would work and that is not the case here. If you do use a 3 pin Y adapter you will need to be sure that the RPM signal from only one fan is fed back to the motherboard fan header.

[KingShinobi]

how can I achieve that? I will use the exact same fans with the Y-cable. I guess thats the best solution...