james knott gjaidadguarogerscom carlos e r wrote thursday 20080214 1019 0800 john andersen wrote even cheapest cheap powersupplies handle spikes duration mention fact designed supply capacity tp park heads disk drives event total power failure extra capacity available handle spikes actually voice coil type heads park power current spring takes heads park position automatically say true stepper motor type heads use pcs perhaps 20 years actually drives designed heads land safely data area theres need spring years ago pulled cover drive dont recall spring pulling heads back hand old disk pack drives certainly retract mechanism consisting large capacitor relay would connect linear motor event power failure use openofficeorg tue 05 aug 2008 222428 0500 opensuse ot much power pc really consume