My Xbox is locking up all the time in the beginning of Xbox games and sometimes during the boot screen. Is it my bios? I dont think it is, because I had an old mobo/hdd and tried my Xecuter2.3b chip, worked on all the games/fine. Then my mobo/hdd broke, so I bought a new combo. Installed the chip, and sometimes it locks up, and locks up everytime in a game in the beginning. My bios is 4981.06 and EvoX is 3935. I am just checking to make sure it aint my bios, because it worked perfectly before with my old mobo. By the way, the new mobo/hdd I got, it plays DVD's, runs apps, everything fine, cept the Xbox games. Please help, thanx.