NEC MH4500 manual Security Menu, Advanced Chipset Control Submenu

Advanced Chipset Control Submenu

Feature	Choice	Description	Your Setting
Address Bit Permuting	Disabled	To be enabled, there must be a
	Enabled	power of 2 number of rows, all rows
		must be the same size, and all
		populated rows must be adjacent
		and start at row 0. Two-way or four-
		way permuting is set automatically
		based on memory configuration.
Base RAM Step	1 MB	Tests base memory once per MB,
	1 KB	once per KB, or every location.
	Every location
Extended RAM Step	1 MB	Tests extended memory once per
	1 KB	MB, once per KB, or every location.
	Every location
L2 Cache	Enabled	When enabled, secondary cache is
	Disabled	sized and enabled. For Core Clock
		Frequency-to-System Bus ratios
		equal to two, BIOS automatically
		disables the L2 cache.
ISA Expansion Aliasing	Enabled	When enabled, every I/O access
	Disabled	with an address in the range
		x100-x3FFh, x500-x7FFh,
		x900-xBFF, and xD00-xFFFh is
		internally aliased to the range
		0100-03FFh before any other
		address range checking is
		performed.
Memory Scrubbing	Disabled	When enabled, BIOS automatically
	Enabled	detects and corrects SBEs.
Read Prefetch for	16	Configures the number of Dwords
PXBOA	32	that are prefetched on Memory
	64	Read Multiple commands.
Read Prefetch for	16	Configures the number of Dwords
PBXOB	32	that are prefetched on Memory
	64	Read Multiple commands.

Security Menu

The following table lists the settings for the Security Menu.

Note: Enabling the Administrator Password field requires a password for entering Setup. The passwords are not case sensitive.

Security Menu

Feature	Choice	Description	Your Setting
User Password is	Clear	Status only; user cannot modify.
		Once set, this can be disabled by

3-10 Configuring Your System