well I have checked the voltages and no issues the cube ran fine last nite. The day before the drive just stoped and then the machine did not boot ie no hard drive. May be the dc to dc board is over heating. This has happened with 2 hd's now. I am tring to get it to fail while I have a meter on it. Both the 12 v and 5 v looks fine when it is operating correctly. once the machine cools off it starts up just fine.