Abit IS7-V User Manual page 47

BIOS Setup 3-9
[Yes]: The system automatically detect the unused DIMM and PCI slots, and stop sending clock signal to
these unused PCI slots.
[No]: The system always send clock signal to all PCI slots.
NOTE: Set this option to [No] setting if there are adapters that cannot be automatically detected by the
system and will cause malfunction.
User's Manual