Advantech PCA-6184, User Manual

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PCA-6184, ed. 1 User’s Manual 34
3.5.10 Video BIOS Cacheable
Selecting Enabled allows caching of the video BIOS, resulting in better
system performance. However, if any program writes to this memory
area, a system error may occur. The Choices: Enabled, Disabled.
3.5.11 Memory Hole At 15M-16M
Enabling this feature reserves 15 MB to 16 MB memory address space
for ISA expansion cards that specifically require this setting. This makes
memory from 15 MB and up unavailable to the system. Expansion cards
can only access memory up to 16 MB. The default setting is ìDisabled.
3.5.12 Delay Transaction
The chipset has an embedded 32-bit posted write buffer to support delay
transactions cycles. Select Enabled to support compliance with PCI spec-
ification version 2.1. The Choice: Enabled, Disabled.
3.5.13 Delay Prior to Thermal
The chipset has an ambedded 32-bit posted write buffer to support delay
transaction cycles. Select Enabled to support compliance with PCI speci-
fication version 2.1. The choice: Enabled, Disabled
3.5.14 AGP Apecture Size (MB)
Select the size of Accelerated Graphics Port (AGP) aperture. The aper-
ture is a portion of the PCI memory address range dedicated for graphics
memory address space. Host cycles that hit the aperture range are for-
warded to the AGP without any translation.