HP Omnibook XE2 Bios Password Removal

I have a client who has lost the bios password on two of their HP Omnibook XE2’s.
now HP are not very helpfull in the uk when we ask for some tech info.
i have tried the usuall take the battery off methods but with no luck.
aparently there is a cmos clear jump you can do across two solder points.
The only problem is i dont know which ones.
Does anyone out there know ?