I tried x2 4979 and then evoxM7 with pbl 1.4
I never got it to work.
I am hoping to find out that it is some simple goofy thing that I am not doing.
pbl 1.4 does work on my old xbox with a different bios, but not with these two. So I cant even get them working on an old xbox to figure out how it wants to be configured.
If I can get it to boot on the old one, then I know it is configured right, and I'll do it that way on my new xbox, to see if this exploit works on it.