P6BAT-A+ v2.0 maximum CPU and HDD supported information as below,
HDD:30G
CPU: Pentium III(SECC2). 100Mhz FSB CPU–850Mhz Pentium III(FCPGA). 100Mhz FSB CPU - 850Mhz
Pentium III(FCPGA). 133Mhz FSB CPU - No support Celeron (PPGA). 66Mhz FSB CPU - 533Mhz
Celeron (FCPGA). 66Mhz FSB CPU - 733Mhz Celeron (FCPGA). 100Mhz FSB CPU - 800Mhz
VIA C3 100Mhz FSB CPU - 700Mhz
VIA C3 133Mhz FSB CPU - No support