Nonvolatile Memory Usage - HP 250R G9 Maintenance And Service Manual

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

Nonvolatile memory usage

Use this table to troubleshoot nonvolatile memory usage.
Table 10-1 Troubleshooting information 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)
78 Chapter 10 Statement of memory volatility
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
Follow instructions below
2
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 Desktop computers with a
CMOS button:
Unplug unit from main power,
remove top cover and press
the Clear CMOS button.
Notebook and desktop
computers without a CMOS
button:
1.
2.
Yes N/A
No Unplug unit from main power
No N/A
3 Follow instructions below
No
under "Clearing TPM"
Press and hold power
button for 12 seconds.
Press Windows key + V,
and then press power
button.