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Extended Configuration Submenu
To access this submenu, select Maintenance on the menu bar, then Extended Configuration.
Maintenance
Main Advanced Security Power Boot Exit
Extended Configuration
The submenu represented by Table 16 is for setting video memory cache mode. This submenu
becomes available when User Defined is selected under Extended Configuration.
Table 16. Extended Configuration Submenu
Feature Options Description
Extended Configuration
• Default
• User-Defined
User Defined allows setting memory control and video
memory cache mode. If selected here, will also display
in the Advanced Menu as: “Extended Menu: Used.”
Video Memory Cache Mode
• USWC
• UC (default)
Selects Uncacheable Speculative Write-Combining
(USWC) video memory cache mode. Full 32 byte
contents of the Write-Combining buffer are written to
memory as required. Cache lookups are not
performed. Both the video driver and the application
must support Write-Combining.
Selects UnCacheable (UC) video memory cache mode.
This setting identifies the video memory range as
uncacheable by the processor. Memory writes are
performed in program order. Cache lookups are not
performed. Well suited for applications not supporting
Write-Combining.
ISA Enable Bit
• Disabled (default)
• Enabled
System Control No options
SDRAM Auto-Configuration
• Auto (default)
• User Defined
Allows configuration of memory.
CAS# Latency
• SDR 2.0/DDR 1.5
• SDR 3.0/DDR 2.0
• DDR 2.5
• Auto (default)
Corresponds to CL.
SDRAM RAS# to CAS#
delay
• 3
• 2
• Auto (default)
Corresponds to tRCD.
SDRAM RAS# Precharge
• 3
• 2
• Auto (default)
Corresponds to tRP.
SDRAM RAS Act. To Pre.
• 7
• 6
• 5
• Auto (default)
Corresponds to tRAS.
62 Intel Server Board S845WD1-E Product Guide