I never stated SFF. It is a full desktop... Hence a full sized PSU and Corsair A50 heatsink.
service tag - DQNTP61
EXPRESS TAG - 29910307753
BIOS A08
MAX CPU FOUND TO RUN IS (SL7PU) - 0F41 - 3.0GHz 800MHz
all the info on the board is as follows
DS/n CN-0C7195-69861-56T-0335 C/0 CN
REV. A03 DELL© 2004
Riptide f2 (E 219542)
THE PWA & REV boxes are blank? no other identifying stickers or numbers