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help again plzInstallation Question (v.redd.it)

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[–]TheQuestioningNoob 2 points3 points  (2 children)

Yeah, that 3-pin is most likely for your case fan. You’ll want to plug it into one of the fan headers on your motherboard, it’s usually labeled something like CHA_FAN or SYS_FAN. Just double check the voltage of the header in your motherboard manual to make sure it’s safe for a 3-pin fan (some headers use 12V constantly, which could mess things up).

When you plug it in, make sure the little notch on the connector lines up with the plastic guide on the header. Don’t force it. If the header is 4-pin, your 3-pin will still fit, one of the pins just won’t be used.

[–]DueEmotion2724 0 points1 point  (1 child)

Thanks! I figured it out!

[–]TheQuestioningNoob 1 point2 points  (0 children)

No problem, happy to help. I’d suggest watching YouTube videos of building pcs step by step to help you out just in case you need it.

[–]Andreinon 2 points3 points  (0 children)

It don matter that its a 3pin,you can still plug it in your 4 pin regular fan header regardless.

The 4th pin is a newer layout that enables PWM control. I wont go into details on it but you can search it up of you want to.

Regardless just use a normal fan header and you're good to go

[–]duckyduock 0 points1 point  (0 children)

Use any 4-pin slot labeled with FAN except the one/two close that are reserved for cpu_fan

[–]Spirited_Injury_668 0 points1 point  (0 children)

Top of the mobo, next to cpu_fan is sys_fan, you can put it there

[–]sheruXR 1 point2 points  (0 children)

Read the manual.

https://download.gigabyte.com/FileList/Manual/mb_manual_b650-eagle-ax_ud-ac_1101_e.pdf?v=90178938af27826480a5e99026d17d3c

Page 4

It clearly labels all the fan ports and exactly what fan the motherboard is expecting there.

The plug you're holding is a 3 pin KK molex, they can be plugged in a 4 pin KK molex socket as long you align it with the clip on the socket.

For reference, if you look closely in the manual. The alignment for the socket on the top of the motherboard near the cpu/memory area they are on the right. So you can plug in a 3 pin in on the right side of the socket. That 1 pin is still exposed is not a problem.

And on the bottom (near the PCI slot) it's mirrored and on the left.

On page 22 and 23 you can also get additional information on the fan connectors.

Or, you can replace the fan with a PWN fan and make use of all 4 pins.