Extended Configuration Submenu - Intel D845HV Technical Product Specification

4.2.1 Extended Configuration Submenu

To access this submenu, select Maintenance on the menu bar and then Extended Configuration.
Maintenance
Extended Configuration
The submenu represented by Table 61 is for setting video memory cache mode. This submenu
becomes available when User Defined is selected under Extended Configuration.
Table 61.

Extended Configuration Submenu

Feature
Extended Configuration
Video Memory Cache Mode
SDRAM Auto-Configuration
CAS# Latency
SDRAM RAS# to CAS#
Delay
SDRAM RAS# Precharge
SDRAM RAS# Active to
Precharge
Main Advanced
Options Description
Default User Defined allows setting memory control and video
(default) memory cache mode. If selected here, will also display in
the Advanced Menu as: "Extended Menu: Used ."
User Defined
USWC 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.
UC (default) 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.
Auto Sets extended memory configuration options to Auto or
(default) User Defined .
User Defined
3 Selects the number of clock cycles required to address a
column in memory.
2
Auto
(default)
3 Selects the number of clock cycles between addressing a
row and addressing a column.
2
Auto
(default)
3 Selects the length of time required before accessing a
new row.
2
Auto
(default)
7 Corresponds to tRAS.
6
5
Auto
(default)
Security Power
BIOS Setup Program
Boot Exit
97