4. BIOS SETUP Video Memory Cache Mode [UC] USWC (uncacheable, speculative write combining) is a new cache technol- ogy for the video memory of the processor. It can greatly improve the dis- play speed by caching the display data. You must set this to UC (uncacheable) if your display card cannot support this feature; otherwise your system may not boot. Configuration options: [UC] [USWC] Onboard PCI IDE Enable [Both] You can select to enable the primary IDE channel, secondary IDE channel, both, or disable both channels. Configuration options:
[Both] [Primary] [Sec- ondary] [Disabled] Memory Hole At 15M-16M [Disabled] This field allows you to reserve an address space for ISA expansion cards that require it. Setting the address space to a particular setting will make that memory space unavailable to the system. Expansion cards can only access memory up to 16MB. Configuration options: [Disabled] [Enabled] 4. BIOS SETUP Chip Configuration ASUS CUV4X-M User’s Manual 62