I have made a error and maybe the same as yours
I have connected the lframe (after cutting it) to pin #7 on the 49lf020 and to lpc pin 3 on the mobo the same time.
It worked for an hour or so an now I only get a red-green light after 4 times startup.
I just over read

this important issue in xboxexpert's tutorial.
Reconnect the lframe on the top mobo results in a normal working box but when I place the cheapmod again it frags!
So who have any idea to solve this?
Thnx!!
NEVERMIND!!!
It was a broken loose contact on lpcbus pin 2 (gnd). Never had this before
Thanks anyway!