Powerbook G4 15" A1001 Titanium Ivory 800MHz Motherboard 

 

This was taken from a working 800Hz which functioned normally.
Further, both the L2 256KB and the L3 1MB cache were functional, as well VRAM, and both RAM slots (chips removed after testing).

This is still quite a powerful CPU/motherboard.

Pictures are of item for sale.
It is stored and will come wrapped in a Static Free Bag for protection.

Apple Part #  820-1292-A 

There are many helpful web sites to help in the installation of this. However, note this may not be easy for the average person, and of course I can't take responsibility if something goes wrong in installation. 
For installation instructions do a Google search of the following words
installing titanium G4 motherboard

Shipping in US is Insured Priority Mail, and includes Delivery Confirmation Number, and usually occurs within 1 business day.