Technoland TL-SBC 8280, User Manual

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BIOS SETUP
TL-SBC 8280 User’s Manual 41
DRAM RAS# Precharge
This option sets the number of cycles required for the RAS to
accumulate its charge before the SDRAM refreshes. The default setting
for the Active to Precharge Delay is
3 .
Memory Frequency For
This field sets the frequency of the DRAM memory installed. The
default setting is
Auto . The other settings are PC200 and PC266 .
System BIOS Cacheable
The setting of Enabled allows caching of the system BIOS ROM at
F000h-FFFFFh, resulting in better system performance. However, if
any program writes to this memory area, a system error may result.
Video BIOS Cacheable
The Setting Enabled allows caching of the video BIOS ROM at
C0000h-F7FFFh, resulting in better video performance. However, if
any program writes to this memory area, a system error may result.
Memory Hole At 15M-16M
In order to improve performance, certain space in memory can be
reserved for ISA cards. This memory must be mapped into the memory
space below 16 MB. The choices are
Enabled and Disabled .
Delayed Transaction
The chipset has an embedded 32-bit posted write buffer to support
delay transactions cycles. Select
Enabled to support compliance with
PCI specification version 2.1.
Delay Prior to Thermal
This field activates the CPU thermal function after the systems boots
for the set number of minutes. The options are
16Min and 64Min .
AGP Aperture Size
The field sets aperture size of the graphics. The aperture is a portion of
the PCI memory address range dedicated for graphics memory address
space. Host cycles that hit the aperture range are forwarded to the AGP
without any translation. The default setting is
64M .