HP EliteBook 745 G2 HP Notebook PC and EliteBook 755 G2 Notebook PC - Maintenance and Service Guide

i. Reboot the system. If the system has a Trusted Platform Module (TPM) and/or ngerprint sensor,
one or two prompts will appear. One to clear the TPM and the other to Reset Fingerprint Sensor;
press F1 to accept or F2 to reject.
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 F10 when prompted near 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
Memory Type
Amount (Size) Does this
memory
store
customer
data?
Does this
memory
retain data
when power
is removed?
What is the
purpose of this
memory?
How is data input into this
memory?
How is this memory
write protected?
HP Sure Start ash
(select models
only)
2 MB No Yes Provides
protected
backup of
critical System
BIOS code, EC
rmware, and
critical PC
conguration
data for select
platforms that
support HP
Sure Start.
For more
information,
see Using HP
Sure Start
(select models
only)
on page 140.
Data cannot be written to this
device via the host processor.
The content is managed
solely by the HP Sure Start
Embedded Controller.
This memory is protected
by the HP Sure Start
Embedded Controller.
Real Time Clock
(RTC) battery
backed-up CMOS
conguration
memory (CMOS)
256 Bytes No Yes Stores system
date and time
and limited
keyboard
controller data.
Using the F10 Setup utility or
changing the Microsoft
Windows date & time.
This memory is not write-
protected. HP
recommends password
protecting the F10 Setup
utility.
Controller (NIC)
EEPROM
64 Kbytes (not
customer
accessible)
No Yes Store NIC
conguration
and NIC
rmware.
Using a utility from the NIC
vendor that can be run from
DOS.
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.
Non-volatile memory usage 137