Table of Contents
Advertisement
Table 12-1
Troubleshooting steps for nonvolatile memory usage (continued)
Nonvolatile
Memory Type
Amount (Size)
Intel Management
1.5 MB or 7 MB
Engine Firmware
(present only in
select Elite or Z
models. For more
information, go to
http://www.hp.com/
support. Select
Find your product,
and then follow
the on-screen
instructions.)
Bluetooth flash
2 Mb
(select products
only)
802.11 WLAN
4 Kb to 8 Kb
EEPROM
Webcam (select
64 Kb
products only)
Fingerprint reader
512 KB flash
(select products
only)
Does
Does
This memory
This memory
store
retain data
customer
when power
data?
is removed?
Yes
Yes
No
Yes
No
Yes
No
Yes
Yes
Yes
What is the
purpose of
How is data input into
This memory?
This memory?
Stores
Management Engine Code is
Management
programmed at the factory.
Engine Code,
Code is updated via Intel
Settings,
secure firmware update utility.
Provisioning
Unique Provisioning Data can
Data and iAMT
be entered at the factory or by
third-party data
an administrator using the
store.
Management Engine (MEBx)
setup utility. The third party
data store contents can be
populated by a remote
management console or local
applications that have been
registered by an administrator
to have access to the space.
Stores
Bluetooth flash is
Bluetooth
programmed at the factory.
configuration
Tools for writing data to
and firmware.
This memory are not publicly
available but can be obtained
from the silicon vendor.
Stores
802.11 WLAN EEPROM is
configuration
programmed at the factory.
and calibration
Tools for writing data to
data.
This memory are not made
public.
Stores webcam
Webcam memory is
configuration
programmed using a utility
and firmware.
from the device manufacturer
that can be run from
Windows.
Stores
Fingerprint reader memory is
fingerprint
programmed by user
templates.
enrollment in HP ProtectTools
Security Manager.
How is This memory
write-protected?
support. Select Find your
product, and then follow
the on-screen
instructions.
The Intel chipset is
configured to enforce
hardware protection to
block all direct read/write
access to This area. An
Intel utility must be used
for updating the firmware.
Only firmware updates
digitally signed by Intel
can be applied using
This utility.
A utility must be used for
writing data to
This memory and is made
available through newer
versions of the driver
whenever the flash
requires an upgrade.
A utility must be used for
writing data to
This memory and is
typically not made
available to the public
unless a firmware upgrade
is necessary to address a
unique issue.
A utility must be used for
writing data to
This memory and is
typically not made
available to the public
unless a firmware upgrade
is necessary to address a
unique issue.
Only a digitally signed
application can make the
call to write to the flash.
Nonvolatile memory usage
93
Advertisement
Table of Contents
