Intel S845WD1-E manual Extended Configuration Submenu, Uswc

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 allows setting memory control and video
	•	User-Defined	memory cache mode. If selected here, will also display
			in the Advanced Menu as: “Extended Menu: Used.”
Video Memory Cache Mode	•	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.
ISA Enable Bit	•	Disabled (default)
	•	Enabled
System Control	No options
SDRAM Auto-Configuration	•	Auto (default)	Allows configuration of memory.
	•	User Defined
CAS# Latency	•	SDR 2.0/DDR 1.5	Corresponds to CL.
	•	SDR 3.0/DDR 2.0
	•	DDR 2.5
	•	Auto (default)
SDRAM RAS# to CAS#	•	3	Corresponds to tRCD.
delay	•	2
	•	Auto (default)
SDRAM RAS# Precharge	•	3	Corresponds to tRP.
	•	2
	•	Auto (default)
SDRAM RAS Act. To Pre.	•	7	Corresponds to tRAS.
	•	6
	•	5
	•	Auto (default)

62 Intel Server Board S845WD1-E Product Guide