I have modded 4 XBoxes and 3 went well. The fourth one was upgraded from one of the others. I have Modded 1.0,1.1, and 2 1.6 ... all is doing fine but this last one. I have a Xenium GOLD and it installed fine and it's working fine. However I installed it on 4 XBoxes and 3 of those did fine and working great, good product ... however the last one of mine that I did it does 3 things that I can't figure out. 1. All games lockup ... ALL!!! Nothing has worked yet ... from HALO to Madden ... they play for about 3 to 5 mins then lockup, freeze ... sometime sooner. 2. UnleashX after about 2 to 5 mins will just reboot .... Crash out of it and reboot back to my main dashboard AvaLaunch. 3. I try to edit my Emulator names in AvaLaunch and save by pushing Y button but it will not save ??? the other three Xboxes that I modded do fine and are doing fine. A 1.0, 1.1, 1.6 ... but mine a 1.6 will not ??? I have had some problems but have figured them out after studying what to look for and have learned allot, but this one has stopped me dead and have no clue??? I have cleared out Cache, deleted my save games, turned off IGR and reinstalled everything from scratch and still nothing different. I flashed straight from the working Xboxes but mine don’t work like the others. Would you think it would be the chip or not ... the OS and everything else does fine just those 3 things. Play games from the DVD from the Xbox Dash with mod turned off and all plays fine. Thinking it may be an over heating problem??? … UnleashX tells me that the CPU is at around 136 … sounds high for me … I speed up the fan and it seems to help some. But the other Xboxes did fine, no problems. I have tried 3 hard drives now, one of them being the original one and still no go I copy and move back and forth from my Computer fine also both with FTP and SMB workgroups … found that SMB is faster and better. For most things. So have my hard drive and chip still installed so to keep testing and working on a good clean setup … but these three things will not go away???