I picked up a new G4 Cube off of eBay and previous owner couldn't get it quite working. Not sure what problems they ran into. Everything seems fine with a few exceptions: Only boots off of a firewire external Can boot to disk, hardware test shows no errors Won't boot from or even see internal HDD, spins up and seems to read it tho. Processor upgraded (didn't take apart to see which) but it shows 0mhz speed in about this mac Was looking around inside and noticed this thing(resistor?) soldered to this other thing (also don't know what it's called). I compared it to my other fully functioning cube and this is not present. Looks like an after user-soldered addition. Can anyone identify what this is and the possible purpose?