Case comes with three fans, but motherboard only has one connector?

Divergent1221

Prominent
Mar 1, 2017
4
0
510
I'm building a PC and my case (Rosewill ATX Mid Tower Galaxy-03) comes with three fans, but my motherboard (Gigabyte GA-H110M-A) only has one fan connector (besides the CPU one). I've read about buying fan splitters but can my motherboard handle having three fans in only one connector slot? This is my first time building an PC so sorry if this is a dumb question.

Also, if anyone has the same case, how do I make the fan near the front light up? Thanks!
 
Solution
The 1 amp limit for load on a single fan header is standard for most mobos. Your case's docs give no info on the fans included, but most use less than 0.2 amps each. Even allowing for twice that on the front fan that has LED's, you are OK using those three fans on a single header via a splitter.

Case manual says nothing about how to light the LED's. I suspect they will just light up because they are connected in parallel with the motor.

Your mobo's SYSFAN header uses Voltage Control Mode, so it will work with either 3-pi or 4-pin fans.
You can connect many fans to single header via splitter, AS LONG as their total amperage does not exceed header limit. Unfortunately, manuals for Gigabyte boards do not specify this limit. For other boards it's usually 1A.
Other way to connect extra fans is to use 4-pin to molex adapter. You can connect as many fans this way as you want. But they will always run at full speed when connected this way.
 


Yeah, I had the same approach ... until I heard my both CM JetFlo running at full speed. Then I changed my mind :)
 

Paperdoc

Polypheme
Ambassador
The 1 amp limit for load on a single fan header is standard for most mobos. Your case's docs give no info on the fans included, but most use less than 0.2 amps each. Even allowing for twice that on the front fan that has LED's, you are OK using those three fans on a single header via a splitter.

Case manual says nothing about how to light the LED's. I suspect they will just light up because they are connected in parallel with the motor.

Your mobo's SYSFAN header uses Voltage Control Mode, so it will work with either 3-pi or 4-pin fans.
 
Solution