"two Intel Mendocino 1300 PPGA"
What are these? Are they the .13 micron Tualatin series? Socket adapters?
The BP6 only can handle Celeron-1 PPGA, Celeron2/FCPGA1 with socket adapter(s), or P-III/FCPGA1 with socket adapters & BIOS update for P3 microcode