[Hdd Lock]

If you don't care about the contents, you could just zero the drive with a Linux live boot, using your PC.  You don't even need to wait for dd to finish.  Just let it run for a bit.

dd if=/dev/zero of=/dev/(your hard drive)

[XEcuter 3 Bios Bank Question]

Can't say I ever realized this.  Thank you.

[Mod Chip Bank Switch Wiring Schematics]

Schematic for the X3 is something I've often wondered about, in case that cable ever were to break.   Thank you!

[X3 Control Panel Dip Switch Button Led Issues]

Something similar happened to me.  I hit the solder points on the underside of the switchboard itself.  I did not see anything obvious.  Seemed to work though.  In my case, they were not completely dead to begin with.  They were not staying on consistently.

[Hello]

Looking forward to getting involved in OG Xbox again.  Been many years.