I don't have a lot of T6x experience, so I'm throwing this out there to see what thoughts are on it. I picked up a T60 (2007-5DU) for parts this morning. The price was good enough that just the RAM in it, and power adapter long with other stuff thrown in are worth it, so I don't have money, sentiment or anything else tied up in this thing.
What it gives is the 2 short beep POST error, giving the ThinkPad splash screen, then going right off immediately after. Right now, I'm assuming that the MB has an issue somewhere. Any other thoughts?
Straight up "for parts" machine, or worth resurrecting if I get a MB and screen (cracked) at a good price? I don't need anything else. I have drives, memory, batteries, etc. Obviously, we don't "need" it!

Family Daily Drivers- T430s, T530, X220
Work- Sadly, the ThinkPads have gone away...... and replaced by HP ProDesk SFF drone machines
Other Projects- Edge 15, Z61m (Titanium)
Historic Retired ThinkPads- T42p, X20, A31p, 701c, 760XD, WorkPad C505