
guess I am still a sub par search user.
I will list the facts I am aware of.
1. Linux bios will boot everytime.
2. If u load the 4997 bios in slot 0 on chip you CAN boot slayer if u put original hd back in box.
3. If you try to load up a diff hd other then stock it will whipe your bios slot 0.
4. I have taken his 120gig and it works in my xbox. And oddly enough after a fresh bios load I have been able to boot my hd in his. (same with swapping chips)
5. This problem is also connected to SOME peoples problems with freezing on post, black screen no video, sound playing but video not moving.
6. All cables/connections/and hardware are in working order. (just seems to be the hd/chip/xbox that where together when problem happened dont work together. (Yet

)
Another thing I have had to do at times, if u leave the xbox you are working on unplugged for to long before u attempt the initial mod on it you CAN NOT boot any disk from the cdrom even though they are good. Problem being is you have to put original hd in and reset date/time, not sure why. (this is posted somewhere else but not enough should be added to someones sticky or something far to many people talking about this problem and noone getting the proper answer.) But after that if you have a good iso burn and one of the dvd's that actually are able to work with your media type it will boot to slayer. (exception see 3 above).
Hopefully with that info one of the talented people here know have to address this problem. I do not post much to boards please let me know if any of the info above is incorrect not trying to pass on false info. You will be hearing more from me know that I am gaining knowledge in this area. Anyways this is real long winded if anyone can help fill in more facts about this problem please do. Hopefully we can knock it out with some team work.