Front Panel (Don't know model and both dxdiag and your Lenovo Vantage can't find it either)

[severe lichen]

Hello there! I just changed my case, and couldn't connect Front Panel to motherboard.
I detached the 5-pin button from the old case and connected it to the 5-pin socket in the motherboard and that's how I managed to turn the computer on.
The new case comes with those connections (power up, reset, etc. see picture) individually and I'm afraid I'm going to plug them and mess it up. So I figured I'd look up the manual to see exactly what each pin does but can't find it without the serial number.
As I mentioned, I tried running dxdiag and Lenovo vantage to get system model but didn't work.

I know its a Legion series and ChatGPT says it might be one of these: T530, T730, T540 or T740.

Any help would be much appreciated

[lime notch]

Can you take a screenshot of the front panel button area?

[severe lichen]

You mean the front panel pins on the actual motherboard or the buttons on the outside of the new case?

I hope is this what you mean

[lime notch]

Oh well you might need to use Multimeter to probe the old button and see how it's wired