HP 11-n010dx x360 manual Nonvolatile memory usage, See Using HP Sure Start Select models Only

Nonvolatile memory usage

Nonvolatile	Amount (Size)	Does this	Does this	What is the	How is data input into this	How is this memory
Memory Type		memory	memory	purpose of this	memory?	write-protected?
		store	retain data	memory?
		customer	when power
		data?	is removed?
HP Sure Start	2 MBytes	No	Yes	Provides	Data cannot be written to this	This memory is protected
flash (select				protected	device via the host processor.	by the HP Sure Start
models only)				backup of	The content is managed	Embedded Controller.
				critical System	solely by the HP Sure Start
				BIOS code, EC	Embedded Controller.
				firmware, and
				critical PC
				configuration
				data for select
				platforms that
				support HP
				Sure Start.
				For more
				information,
				see Using HP
				Sure Start
				(select models
				only)
				on page 81.
Real Time Clock	256 Bytes	No	Yes	Stores system	RTC battery backed-up CMOS	This memory is not write-
(RTC) battery				date and time	is programmed using the	protected.
backed-up CMOS				and noncritical	Computer Setup (BIOS), or
configuration				data.	changing the Microsoft
memory					Windows date & time.
Controller (NIC)	64 KBytes (not	No	Yes	Stores NIC	NIC EEPROM is programmed	A utility is required to
EEPROM	customer			configuration	using a utility from the NIC	write data to this
	accessible)			and NIC	vendor that can be run from	memory and is available
				firmware.	DOS.	from the NIC vendor.
						Writing data to this ROM
						in an inappropriate
						manner will render the
						NIC non-functional.
DIMM Serial	256 Bytes per	No	Yes	Stores memory	DIMM SPD is programmed by	Data cannot be written to
Presence Detect	memory			module	the memory vendor.	this memory when the
(SPD)	module, 128			information.		module is installed in a
configuration data	Bytes					PC. The specific write-
	programmable					protection method varies
	(not customer					by memory vendor.
	accessible)
System BIOS	4 MBytes to 5	Yes	Yes	Stores system	System BIOS code is	NOTE: Writing data to
	MBytes			BIOS code and	programmed at the factory.	this ROM in an
				PC	Code is updated when the	inappropriate manner
				configuration	system BIOS is updated.	can render the PC non-
				data.	Configuration data and	functional.
					settings are input using the	A utility is required for
					Computer Setup (BIOS) or a
						writing data to this
					custom utility.
						memory and is available
						on the HP website; go to
						http://www.hp.com/
						support, and select your
						country. Select Drivers &

78 Chapter 10 Statement of memory volatility