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Nonvolatile Memory Usage; Questions And Answers - HP Chromebox G4 Maintenance And Service Manual

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iv.
NOTE:
computer into an AC outlet before starting.

Nonvolatile memory usage

Use this table to troubleshoot nonvolatile memory usage.
Table 8-1
Troubleshooting steps for nonvolatile memory usage
Description
Primary storage device, holds the
OS, applications, and application
settings
System memory (RAM), holds
transient data during system
operation
Permanent system BIOS settings
System boot ROM (BIOS)
RTC (CMOS) RAM
Keyboard/mouse (ROM)
Keyboard/mouse (RAM)
LOM EEPROM
Trusted Platform Module (TPM)
1
Under typical operation, the only user data stored on the primary storage device are preferences for device configuration and
settings for connections. However, the administrator can configure the system to allow users to store data locally.
2
Only user data potentially stored in BIOS Settings are the ownership and asset tags, administrator password, and startup
password.
3
The Trusted Platform Module may contain encrypted passwords or certificates generated from user or administrator input.

Questions and answers

Use this section to answer your questions about nonvolatile memory.
Under Utilities, select Disk Sanitizer, select the hard drive with the data that you want to
clear, and then follow the on-screen instructions to continue.
The amount of time it takes for Disk Sanitizer to run can take several hours. Plug the
Volatility description
Non-volatile, 8-256 GB of
eMMC or NVMe SSD storage,
removable
Volatile, SODIMM socket.
Removable (4 GB/8 GB/16 GB)
Non-volatile; 16 KB; stored
Non-volatile memory, 128 Mbit
(16 MB) socketed, removable
Volatile memory, 256 bytes
located in AMD embedded
System on Chip (SoC)
Non-volatile, 2 KB embedded in
the super I/O controller (SIO2)
Volatile, 256 bytes embedded in
the super I/O controller (SIO2)
Non-volatile, 2 MB embedded in
LAN controller
Non-volatile; 51 KB ROM for
firmware and 38 KB system
parametric data
Storage user data
How to erase
1
Follow instructions below
Yes
under "Erase the Primary
Storage Device"
Yes
Unplug unit from power
2
Follow instructions below
No
under "Clearing BIOS
Settings"
No
Download the latest BIOS
for your model from the
HP website and follow the
instructions to flash the BIOS
that are on the website
No
Unplug unit from main power,
remove top cover and press
Clear CMOS button
Yes
N/A
No
Unplug unit from main power
No
N/A
3
Follow instructions below
No
under "Clearing TPM"
Nonvolatile memory usage
49

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