ASUS ROG Maximus IX Formula fan headers

Valantar

Golden Member
Aug 26, 2014
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There's an ancient saying in the PC world:

RTFM

Seriously, though. All you need is to look up the manual. It's all there, clearly marked up and laid out. This is what a manual is for.
 

pcslookout

Lifer
Mar 18, 2007
11,959
157
106
There's an ancient saying in the PC world:

RTFM

Seriously, though. All you need is to look up the manual. It's all there, clearly marked up and laid out. This is what a manual is for.

I did.

It is easier with a colored picture for me.

Sorry.
 

Valantar

Golden Member
Aug 26, 2014
1,792
508
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Okay. On page 1-2 of the manual, you have an annotated image of all connections on the motherboard (the name/designstion/purpose of each header is clearly written next to it on the picture). The next page has a list of all the connections, although that's not very useful as all fan-related outputs are grouped together. On page 1-25 you have a thorough rundown of all fan connectors, their power delivery, pinouts, locations, the works.

A short rundown of designations:
CPU_FAN: well...
CPU_OPT: optional connection for multi-fan cpu coolers. Or another fan, if you're so inclined.
H_AMP: high amperage output, suitable for unpowered pwm hubs and the like. Or just a regular fan.
CHA_FAN: chassis fan
EXT_FAN: connector for an external fan splitter/controller daughterboard. I believe this is bundled with the motherboard.
W_PUMP: Water pump connector. Probably delivers more power than a regular fan header. Can still power a fan, if you want, but located close to where pumps are most often mounted in the case. Runs at full speed unless directed otherwise.
AIO_PUMP: Same as above, though more conveniently located close to the CPU socket for use with AIOs. Same power delivery as regular fan header. Runs at dull speed unless directed otherwise.
W_FLOW: connections for a water flow sensor. Not a fan connector, even if it looks the same.

As to where these are located specifically: RTFM. And yes, you have something like twice the number of connections you need for your five fans. Two for the CPU, four cha_fan, two pump headers, one high amp, and some on the extension board. Don't worry.