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?
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
public unless a firmware
upgrade is necessary to
address a unique issue.
Fingerprint Reader 512kByte
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 factory 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.
3.
Does the “Firmware Hub for System BIOS” contain the BIOS program? Is this chip writable, and if so
how?
The Firmware Hub does contain the BIOS program and is writable. A utility is required to perform the
write function.
4.
In some PC systems, the Firmware Hub for System BIOS is a flash memory chip so that updates can
be written by the customer. Is this true for these BIOS chips?
Yes, they are flash memory chips.
5.
What is meant by “Restore the nonvolatile memory found in Intel-based system boards”?
126 Chapter 13 Statement of Volatility
Summary of Contents for 14 TouchSmart
Page 4: ...iv Safety warning notice ...
Page 31: ...3 Illustrated parts catalog Computer major components Computer major components 23 ...
Page 104: ...96 Chapter 5 Using Setup Utility BIOS and HP PC Hardware Diagnostics UEFI in Windows 8 ...
Page 108: ...100 Chapter 6 Using Setup Utility BIOS and System Diagnostics in Windows 7 ...
Page 130: ...122 Chapter 12 Power cord set requirements ...
