Help needed to identify RGB pin 1 on Gigabyte mobo

Splinterdog · Sep 5, 2022

I'm not sure which is pin 1 on B450 Aorus Pro WiFi, but I do know that the arrow on the RGB connector lead needs to meet it. The pins aren't numbered but there may be a rule of thumb that I'm not aware of.
This is from the manual:

Motherboard:

Perhaps the orientation of the manual drawing is a hint?
Thanks.

AM4isGOD · Sep 5, 2022

They did a great job marking the header on the board for pin 1

SpittinFax · Sep 5, 2022

I would just use a multimeter grounded to the chassis to find the 12V pin. It's best to check and be on the safe side.

Looking at the PCB for clues, the bottom pin has a wider trace on it than the other three. So I suspect the bottom one is 12V.

ir_cow · Sep 5, 2022

My guess is the left is 12v (button pin in photo). Because the text above it makes that the top. It would go 12v-R-G-B. I plug them in wrong all the time. If you don't get lights, flip it around.

Athlonite · Sep 6, 2022

Ruru · Sep 6, 2022

I agree on this one as I have a Gigabyte board as well. But it should be just like pointed out in the pic above.

Chomiq · Sep 6, 2022

Splinterdog said:
I'm not sure which is pin 1 on B450 Aorus Pro WiFi, but I do know that the arrow on the RGB connector lead needs to meet it. The pins aren't numbered but there may be a rule of thumb that I'm not aware of.
This is from the manual:
View attachment 260782

Motherboard:
View attachment 260783

Perhaps the orientation of the manual drawing is a hint?
Thanks.

First drawing is always oriented the same way the connector is actually oriented on the board. Pin 1 is the bottom one.

Splinterdog · Sep 6, 2022

Thanks for all your help!

Ruru · Sep 7, 2022

Splinterdog said:
Thanks for all your help!
View attachment 260874

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System Name	Ryzen Monster
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Processor	Ryzen 5 5600X
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Processor	Ryzen 7 5800X3D
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Help needed to identify RGB pin 1 on Gigabyte mobo

Splinterdog

AM4isGOD

SpittinFax

ir_cow

Athlonite

Ruru

S.T.A.R.S.

Chomiq

Splinterdog

Ruru

S.T.A.R.S.