Questions And Answers - HP Stream 11 Pro G2 Maintenance And Service Manual

Non Volatile
Memory Type
Webcamera
Fingerprint
reader

Questions and answers

1. How can the BIOS settings be restored (returned to default settings)?
a. Turn on or restart the computer and press
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.
76 Chapter 10 Statement of Volatility
Amount (Size) Does
this memory
store customer
data?
64 KBits No
512 KBytes flash Yes
Does What
this memory is the purpose
retain data of this memory?
when power
is removed?
Yes Store webcam
configuration
and firmware.
Yes Stores
fingerprint
templates.
F10 when prompted near the bottom of the display.
How is data How
input into is this memory
this memory? write
protected?
address a unique
issue.
Using a utility A utility
from the device is required for
manufacturer writing data to
that can be run this memory
from Windows. and is typically
not made
available
to the public
unless a
firmware
upgrade
is necessary to
address a unique
issue.
By enrolling in Only a digitally
HP ProtectTools signed
Security application can
Manager. make the call to
write
to the flash.