User manual

Chapter 3 - System Setup
PS-2000B Series User Manual 3-9
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Video BIOS Cacheable
Sets whether the Video BIOS Cache is used or not. Settings available are [En-
abled] 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.
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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 [Dis-
abled] and [Enabled]. The factory default setting is [Disabled] and is recom-
mended for most users.
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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.
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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.
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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.
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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] and is
recommended for most users.