durinn

What is this button? [Lenovo 20L6S01Q2Y motherboard]

https://programming.dev/post/47186720

What is this button? [Lenovo 20L6S01Q2Y motherboard] - programming.dev

[https://programming.dev/pictrs/image/7dda833c-8f17-40e4-8692-37b90c1c9060.png][https://programming.dev/pictrs/image/0aa1bc09-567c-4fea-b62d-c512d94f006a.png] I was flashing Libreboot on to my ThinkPad T480, when I noticed this little button. Sorry for the poor images! [https://programming.dev/pictrs/image/d5798fc8-c6df-4f19-bc34-d4ff08fa0ee7.jpeg]

Mar 14 at 1:09pmWeb
Show threadanamethatisntMar 14

No idea what the button is and I found nothing about it in the Hardware Maintenance Manual
download.lenovo.com/pccbbs/…/t480_hmm_en.pdf

The system board has the part id 01YU859
pcsupport.lenovo.com/se/sv/parts-lookup?partId=01…

Show threadanamethatisntMar 14
Scribd has the schematic of the board, but I’m not technical enough to use it and answer your question.
scribd.com/…/Lenovo-ThinkPad-T480-01YR328-NM-B501…
Lenovo T480 NM-B501 Schematic Overview | PDF | Computer Related Introductions | Computer Architecture

This document contains a title page and 104 sheets detailing the logic schematics for the WD-2 motherboard. The sheets are organized by subsystem and component, including the CPU, memory interfaces, display connections, storage interfaces, power delivery systems, and more. A block diagram on sheet 1 shows the high-level system architecture connecting the main components like the CPU, GPU, memory channels, wireless modules, and display.

Scribd
Show threaddurinnMar 14
Noice! I was in fact looking for that information too! :D
Show threadtychosmooseMar 14

That is the button behind the “emergency reset hole” in the bottom case panel. It’s explained in the user manual.

Emergency Reset Hole

Gotta be a punk rock band name, no?

Show threadanamethatisntMar 14
Makes sense! That reset button has saved me many a trips out to troubled end users.
Show threaddurinnMar 14

No luck on the punk rock band, but I thank you for the help with the manual! XD

Show threadtychosmooseMar 14
Dang it. Well it’s at least where I wanted to throw an HP laptop years ago. Piece of shit. Right into the emergency reset hole.
Show threadpastermilMar 14
“i need somebody to touch my emergency reset hole.”