Chapter 5 - System Setup
5-10
PL-5910 Series User Manual
System BIOS Cacheable
Sets whether the System BIOS Cache is used or not. When the OS is set to use this
cache, the PL unit’s processing speed will increase. Settings available are [Enabled] and
[Disabled]. The factory setting is [Disabled] and is recommended for most users.
Video BIOS Cacheable
Sets whether the Video BIOS Cache is used or not. Settings available are [Enabled]
and [Disabled]. The factory setting is [Disabled]. When this feature is [Enabled], the
BIOS ROM range available for caching is from C0000h - F7FFFh, which will improve
video performance. However, if another program tries to write to this area of memory, a
system error may occur.
Memory Hole At 15M-16M
This setting determines whether to designate the memory space from 15MB to 16MB
as the buffer area for the ISA bus card. The available settings are [Disabled] and
[Enabled]. The factory default setting is [Disabled] and is recommended for most users.
CPU Latency Timer
If Enabled, a deferrable CPU cycle will only be Deferred after it has been in a Snoop
Stall for 31 scans and another ADS# has arrived. If Disabled, changeable CPU cycles
will be changed after an ADS number is received by GMCH.
Delayed Transaction
Designates the length of the pre-charge time. The available settings are [Enabled] and
[Disabled]. The factory default setting is [Enabled] and is recommended.
AGP Graphics Aperture Size
Designates the address range used for PCI memory addresses allocated to AGP graphic
memory. The available settings are [64MB] or [32MB]. [64MB] is the factory setting.
On-Chip Video Window Size
Designates the on-chip video window size used by the VGA driver. The available
settings are [Disabled] and [64MB]. The factory default setting is [64MB].
