HP EliteBook Folio 9480m Maintenance and Service Guide - Page 123

Non Volatile, Memory Type

Page 123 highlights

Non Volatile Memory Type Amount (Size) Does this memory store customer data? DIMM Serial 256 Bytes per No Presence Detect memory (SPD) module, 128 configuration data Bytes programmabl e (not customer accessible) System BIOS 4 to 5 MBytes Yes Intel Management 1.5 or 5MByte Yes Engine Firmware (present only in models ending in a 'p','w', or 'm' or with Intel Centrino Pro technology) Bluetooth flash 2Mbit No 802.11 WLAN EEPROM 4kb to 8kb No Web Camera 64K bit No 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? battery management). on the HP website. Writing data to this ROM in an inappropriate manner can render the PC nonfunctional. Yes Stores memory Programmed by the memory Data cannot be written to module vendor. this memory when the information. module is installed in a PC. The specific write protection method varies by memory vendor. Yes Store system System BIOS code is A utility is required for BIOS code and programmed at the factory. writing data to this PC Code is updated when the memory and is available configuration system BIOS is updated. on the HP website. Writing data. Configuration data and data to this ROM in an settings are input using the inappropriate manner can F10 setup utility or a custom render the PC non- utility. functional. Yes Stores Management Engine Code is The Intel chipset is Management programmed at the factory. configured to enforce HW Engine Code, Code is updated via Intel protection to block all Settings, secure firmware update direct read/write access to Provisioning utility. Unique Provisioning this area. An Intel utility is Data and iAMT Data can be entered at the required for updating the third party data factory or by an administrator firmware. Only firmware store. using the Management Engine updates digitally signed (MEBx) setup utility. The third by Intel can be applied party data store contents can using this utility. populated by a remote management console or local applications registered by an administrator to have access to the space. Yes Stores Programmed at the factory. A utility is required for Bluetooth Tools for writing data to this writing data to this configuration memory are not publicly memory and is made and firmware. available but can be obtained available through newer from the silicon vendor. versions of the driver if the flash requires an upgrade. Yes Stores Programmed at the factory. A utility is required for configuration Tools for writing data to this writing data to this and calibration memory are not made public. memory and is typically data. not made available to the public unless a firmware upgrade is necessary to address a unique issue. Yes Store Web Cam Using a utility from the device A utility is required for configuration manufacturer that can be run writing data to this and firmware. from Windows. memory and is typically not made available to the Non-volatile memory usage 111

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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?
battery
management).
on the HP website. Writing
data to this ROM in an
inappropriate manner can
render the PC non-
functional.
DIMM Serial
Presence Detect
(SPD)
configuration
data
256 Bytes per
memory
module, 128
Bytes
programmabl
e (not
customer
accessible)
No
Yes
Stores memory
module
information.
Programmed by the memory
vendor.
Data cannot be written to
this memory when the
module is installed in a
PC. The
specific
write
protection method varies
by memory vendor.
System BIOS
4 to 5 MBytes
Yes
Yes
Store system
BIOS code and
PC
configuration
data.
System BIOS code is
programmed at the factory.
Code is updated when the
system BIOS is updated.
Configuration
data and
settings are input using the
F10 setup utility or a custom
utility.
A utility is required for
writing data to this
memory and is available
on the HP website. Writing
data to this ROM in an
inappropriate manner can
render the PC non-
functional.
Intel Management
Engine Firmware
(present only in
models ending in a
‘p’,‘w’, or ‘m’ or
with Intel Centrino
Pro technology)
1.5 or 5MByte
Yes
Yes
Stores
Management
Engine Code,
Settings,
Provisioning
Data and iAMT
third party data
store.
Management Engine Code is
programmed at the factory.
Code is updated via Intel
secure
firmware
update
utility. Unique Provisioning
Data can be entered at the
factory or by an administrator
using the Management Engine
(MEBx) setup utility. The third
party data store contents can
populated by a remote
management console or local
applications registered by an
administrator to have access
to the space.
The Intel chipset is
configured
to enforce HW
protection to block all
direct read/write access to
this area. An Intel utility is
required for updating the
firmware.
Only
firmware
updates digitally signed
by Intel can be applied
using this utility.
Bluetooth
flash
2Mbit
No
Yes
Stores
Bluetooth
configuration
and
firmware.
Programmed at the factory.
Tools for writing data to this
memory are not publicly
available but can be obtained
from the silicon vendor.
A utility is required for
writing data to this
memory and is made
available through newer
versions of the driver if
the
flash
requires an
upgrade.
802.11 WLAN
EEPROM
4kb to 8kb
No
Yes
Stores
configuration
and calibration
data.
Programmed at the factory.
Tools for writing data to this
memory are not made public.
A utility is required 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.
Web Camera
64K bit
No
Yes
Store Web Cam
configuration
and
firmware.
Using a utility from the device
manufacturer that can be run
from Windows.
A utility is required for
writing data to this
memory and is typically
not made available to the
Non-volatile memory usage
111