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S1 - What does this socket do?

Posted: Mon May 13, 2024 5:59 pm
by MiyaCulpa
What does the socket I marked in the photo do?
Bios programming or 2.5" hdd socket ?

Re: S1 - What does this socket do?

Posted: Tue May 14, 2024 10:58 pm
by dragonpoo
If I were to guess, it's some kind of serial port for internal debugging. Since it's on the side that doesn't face customers, I expect it wasn't intended for use by normal people like us.

Still, it looks interesting.

Re: S1 - What does this socket do?

Posted: Wed May 15, 2024 12:46 am
by Gabe
Something for internal debugging would be my guess as well, especially because of where it is.

Re: S1 - What does this socket do?

Posted: Wed May 15, 2024 3:00 am
by dragonpoo
Zooming in and counting the pins, it appears to have 10 of them, which seems to match a classic serial cable. More evidence that it's probably debugging.

Still, I get MiyaCulpa's questioning. I love finding those "easter egg" features on devices that offer more than you'd expect. Kinda like RAM limits. :)

Re: S1 - What does this socket do?

Posted: Wed May 15, 2024 10:31 am
by MiyaCulpa
Some mini PCs have a 2.5" HDD socket. I had hoped for such a thing, but it is not. There are 10 pins in total and there is 3 volts on the outer pins. I think it is something like a debug port. Another thing that interests me is the I/O integrated (ite IC etc. .) not on this pc.

Re: S1 - What does this socket do?

Posted: Fri May 17, 2024 3:13 am
by barry777
This interface is used for internal debugging;
Currently, S1 does not support expansion of 2.5-inch SSD. It is recommended to connect qi'ta through the USB3.0 interface.