PB540/550/560 CMOS Setup

Menu Item Option Description
Base Memory 512KB
640KB
Sets the Base Memory Size.
ISA LFB Size Disabled
1 MB
3 MB
7 MB
Creates a "hole" in the memory map, requests to read/write memory in this "hole" are redirected to the ISA bus.
PCI IDE Prefetch Buffers Enabled
Disabled
Caching system for the PCI IDE controllers.
Latency Timer 0-255 Time is entered manually.