I recentley went to a local computer fair and found a stall selling modded xbox 's so i looked around and found this one that looks very professional. It had a load of new buttons on the front and one switch i asked him if it was chipped he laughed and just answered yes so i bought it not really knowing much abou the xbox scene. i got it home opened it up and found it had 120gb seagate 8mb cache X-Ecuter 2 V2.2 Pro so i though cool then i noticed all these other boards and jumpers not knowing what these were i closed it back up and started playing games i then flicked this big switch and a blue light came on???? and a load of fans not even knowing it i had overclocked my xbox from 733 to 1.4 my games run at top spped load at top speed and avi playback is much smoother. so if neone else has found a turbo xbox or a site that sells them please let me know.