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Prime Z490-A unlabled headers

compmike19
Level 7

‎05-03-2021 02:50 PM

Does anyone know exactly what the 2 unlabeled headers are for, maybe an LPC and TMP header?

The first on is just behind the M2 (WIFI) slot. It's a 2 x 5 with 1 pin missing.

The second is next to the power button on the board. It's a 2 x 5 with 1 pin missing.

Neither are mentioned in the manual at all.
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4 REPLIES 4

thomas_yiu
Level 9

‎05-04-2021 02:12 PM

Hello, please provide image of the pin? It might be for repair service only
Sincerely,
TY
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compmike19
Level 7
In response to thomas_yiu

‎05-04-2021 03:01 PM

8857788578

I am sure they are for repair service, what bus or protocol do they use?
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rmadoo
Level 7
In response to compmike19

‎05-21-2021 04:16 PM

the one pictured next to the m.2 is the spi(bios) service header ..
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Blake1
Level 10

‎06-24-2021 11:33 PM

Hi there,
Sorry for our late confirmation.
Both of the headers are for service, so that's why they are not labeled.
One is for installing BIOS and one is for debug.
Thank you very much.
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