Where to place case fans?

[BoxGuardian]

Hey,

I just bought a pre-built on sale but two of the case fans weren’t installed on the system. I have two 120mm fans left, there are 3 other fans installed by the radiator in the front of case. (I don’t know which way round is in or out but I’ve taken a picture). Where should I put the remaining two fans?

 

Also where should I plug them in? I have pictured the motherboard layout from the manual and i think I should plug them in at CHA_FAN1 But I’m not quite sure. The fans use 4 Pin plugs.

 

Thanks so much for your help.

- Max

[Yo soy Jack]

Given that hot air rises to the top of a container the best place to put an exhaust fan would be at the top left near the io port.

[WhitetailAni]

Put one on the rear intake slot and connect it to the CHA_FAN1 header.

Put one in the upper left fan mount and connect it to the CHA_FAN2 header.

Connect the 2 AIO fans to CPU_FAN and CPU_OPT.

[BoxGuardian]

Yeah, Would be great but the cables from the case fans aren’t long enough to reach the CHA_FAN2 and 3 Headers, I think the CHA_FAN2 Header and the AIO_PUMP header are combined into one as the AIO is plugged into something higher up. I think this because there is a four pin section and a five pin section (pictured) could I plug them both into that combined header?

 

Also the orientation of the fans, should the fan on the back Intake slot be intake and the one on the top Goes out or should they both be out to counteract the fans by the radiator?

Edited January 11, 2021 by BoxGuardian
Oops, Grammar Mistake

[BoxGuardian]

1 minute ago, BoxGuardian said:

Yeah, Would be great but the cables from the case fans aren’t long enough to reach the CHA_FAN2 and 3 Headers, I think the CHA_FAN2 Header and the AIO_PUMP header are combined into one as the AIO is plugged into something higher up. I think this because there is a four pin section and a five pin section (pictured) could I plug them both into that combined header?

 

Also the orientation of the fans, should the fan on the back Intake slot be intake and the one on the top Goes out or should they both be the opposite of the fans by the radiator?

 

[Hairless Monkey Boy]

2 minutes ago, BoxGuardian said:

Also the orientation of the fans, should the fan on the back Intake slot be intake and the one on the top Goes out or should they both be out to counteract the fans by the radiator?

They should both be exhaust.

[Ripred]

All the places

[Ripred]

12 hours ago, BoxGuardian said:

Yeah, Would be great but the cables from the case fans aren’t long enough to reach the CHA_FAN2 and 3 Headers, I think the CHA_FAN2 Header and the AIO_PUMP header are combined into one as the AIO is plugged into something higher up. I think this because there is a four pin section and a five pin section (pictured) could I plug them both into that combined header?

 

Also the orientation of the fans, should the fan on the back Intake slot be intake and the one on the top Goes out or should they both be out to counteract the fans by the radiator?

I have the basically the same board and I've plugged fans into that header before and they work but you'll have to control it from the pump section in bios because it thinks it's reading pump speed...

Intake only were there's filters unless you like disassemble and dust it all the time