If you have been to the PcChips Lottery and determined that your board is not the M730 (or any of the other PII/PIII Slot 1 BXpert motherboards), then possibly it is an Amptron PII-3300V motherboard. Check the picture at the following link to see if it matches your motherboard:
The M761 is an Intel 440BX/ZX chipset motherboard and the M762V has 4 PCI, 3 ISA & 3 DIMMs. Would it be possible for you to post a picture of the motherboard?