Read Arround write : Disabled
DRAM optimization feature: If a memory read is addressed to a location
whose latest write is being held in a buffer before being written to memory,
the read is satisfied through the buffer contents, and the read is not sent to
the DRAM
M emory Hole
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.
Enabled Memory hole supported.
Disabled Memory hole not supported.
Concurrent PCI/Host : Disabled
When Disabled, CPU bus will be occupied during the entire PCI operation
period.
System BIOS Cacheable
Select 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.
Enabled BIOS access cached
Disabled BIOS access not cached
Video BIOS Cacheable
Selecting Enabled allows caching of the video BIOS ROM at C0000h to
C7FFFh, resulting in better video performance. However, if any program
directly writes to this memory area, a system error may result.
Video RAM Cacheable
Selecting Enabled allows caching of the video memory (RAM) at A0000h to
AFFFFh, resulting in better video performance. However, if any program
writes to this memory area, a memory access error may result.
AGP Aperture Size (MB)
Select the size of the Accelerated Graphics Port (AGP) aperture. 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 forward-
ed to the AGP without any translation. See www.agpforum.org for APG
information.
Auto Detect DIMM/PCI Clk: Enabled
The default setting is "Enabled" To reduce the occurence of electro magnetic
inteference (EMI) the BIOS detects the precense or absence of components in
DIMM and PCI -slots. and turns of the system generator pulses to empty slots.
Spread spectr um : Disabled
Using the default setting (Disabled) increases system stabillity.
3303955 User's Manual
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Summary of Contents for 3303955
Page 1: ...User s Manual Single Board Computer 3303955 Version 1 1 June 2001 ...
Page 10: ...Board Layout Front VT82C596B S o u th b rid g e 1 4 3 1 8 6 3303955 User s Manual ...
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