I have recently purchased a sun v40z off ebay that did work. After stuffing around with the menus on the LCD screen, when I apply power the LCD screen stays blank with the CPU fans on at max. I spent a bit of money on this (I'm only 14 and like my hard earned money :) ) and am a bit disappointed that it isn't working.
I have tried:_
Resetting CMOS (with jumpers and by taking out battery)
Random different combinations of buttons
Taking out HDDs
I am trying right now (after I post this):*
Taking out individual RAM sticks and CPUs
Throwing the server out of the window into the neighbors yard if that doesn't work ;) ( <- I might need some help cause I don't think I can throw 36kgs ;p)
No. No additional thought from me.
That's what "I have no experience with the v20Z/v40Z platform" happens to mean.
Your older thread on this box mentioned your original cost was something like $50, so you are smart to sell it off by individual parts. You'll stand a great chance of recovering the investment if you do.