Maintenance and Service Guide

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?
this memory
are not made
public.
and is typically
not made
available to the
public unless a
firmware
upgrade is
necessary to
address a
unique issue.
Webcam 64 KBits No Yes Store webcam
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
public unless a
firmware
upgrade is
necessary to
address a
unique issue.
Fingerprint
reader
512 KBytes
flash
Yes Yes Stores
fingerprint
templates.
By enrolling in
HP
ProtectTools
Security
Manager.
Only a digitally
signed
application can
make the call to
write to the
flash.
Questions and answers
1. How can the BIOS settings be restored (returned to default settings)?
a. Turn on or restart the computer and press F10 when prompted near the bottom of the
display.
b. Select File, then select Restore defaults.
c. Follow the on-screen instructions.
d. Select File, save changes and exit, then press Enter.
2. What kind of configuration data is stored on the DIMM Serial Presence Detect (SPD) memory
module? How would this data be written?
The DIMM SPD memory contains information about the memory module such as size, serial
number, data width, speed/timing, voltage and thermal information. This information is written by
the module manufacturer and stored on an EEPROM. This EEPROM cannot be written to when
the memory module is installed in a PC. Third party tools do exist that can write to the EEPROM
when the memory module is not installed in a PC. There are various third party tools available to
read SPD memory.
Questions and answers 27