Non-Volatile Memory Usage - HP ProBook 11 G1 Maintenance And Service Manual

i. Reboot the system. If the system has a Trusted Platform Module (TPM) and/or fingerprint sensor,
one or two prompts will appear. One to clear the TPM and the other to Reset Fingerprint Sensor;
press
j. Remove all power and system batteries for at least 24 hours.
2. Remove and retain the storage drive or clear the contents of the drive.
Clear the drive contents by using the BIOS Setup Secure Erase command option, or by using a third party
utility designed to erase data from an SSD. To run Secure Erase, follow these steps:
a. Enter BIOS Setup by powering on the system, and then pressing
the bottom of the display.
b. Select the Security menu and scroll down to the Utilities menu.
c. Select Hard Drive Tools.
d. Under Utilities, select Secure Erase, and then select the desired hard drive.

Non-volatile memory usage

Non Volatile Amount
Memory Type (Size)
HP Sure Start 2 MB
flash (select
models only)
Real Time Clock 256 Bytes
(RTC) battery
backed-up CMOS
configuration
memory (CMOS)
Controller (NIC) 64 Kbytes
EEPROM (not customer
accessible)
102 Chapter 15 Statement of Volatility
F1 to accept or F2 to reject.
Does this Does this
memory memory
store retain data
customer when power
data? is removed?
No Yes
No Yes
No Yes
What is How is data input into this
the purpose memory?
of this
memory?
Provides Data cannot be written to this
protected device via the host processor.
backup The content is managed
of critical solely by the HP Sure Start
System BIOS Embedded Controller.
code, EC
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 105.
Stores system Using the F10 Setup utility or
date and time changing the Microsoft
and limited Windows date & time.
keyboard
controller data.
Store NIC Using a utility from the NIC
configuration vendor that can be run from
and NIC DOS.
firmware.
F10 when prompted near
How is this memory write
protected?
This memory is protected
by the HP Sure Start
Embedded Controller.
This memory is not write-
protected. HP
recommends password
protecting the F10 Setup
utility.
A utility is required to
write data to this memory
and is available from NIC
vendor. Writing data to
this ROM in an
inappropriate manner will
render the NIC non-
functional.