The author of the patch tool said to me that the special X60 bios is already patched, no error 180* so I have to add SLIC only.....will do it next days.
the all 7B0000~7B00B5 (B6H long bytes) FF bytes are a part of MARKER. so the new blank module size is 717AH
Ohhh, yes, you are right!!! Now it's plausible to me........ ROMHOLES, reserved for the MARKER. I will update my instructions. Thank you very much. Not sure what will happen if you ignore the marker ROMHOLE..... EDIT: Instructions are updated, thanks again for that useful info.