i have a hitachi deskstar hdt7250 320gb 7200rpm in a desktop i think i have bricked the hddd. i want to put my laptop hdd a toshiba mq01abd050 500gb 5400rpm same connections. the systems they are out of are toshiba satelite c855d-s5229 laptop running win.7 home prem. mother board went out and the desktop win. vista compaq pc sr5123wm gc660aa-aba. i just want to know if i can run the laptop hdd using my destop without having any problems with the system messing up or anything. both systems dont have any extras with them in terms of hard ware aside from what they came with.