HP 240R G9

iv. 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.
NOTE: The amount of time it takes for Disk Sanitizer to run can take several hours. Plug the
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 Volatility description Storage user data How to erase
Primary storage device, holds the
OS, applications, and application
settings
Non-volatile, 8-256 GB of
eMMC or NVMe SSD storage,
removable
Yes
1
Follow instructions below
under “Erase the Primary
Storage Device”
System memory (RAM), holds
transient data during system
operation
Volatile, SODIMM socket.
Removable (4 GB/8 GB/16 GB)
Yes Unplug unit from power
Permanent system BIOS settings Non-volatile; 16 KB; stored
No
2
Follow instructions below
under “Clearing BIOS
Settings”
System boot ROM (BIOS) Non-volatile memory, 128 Mbit
(16 MB) socketed, removable
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
RTC (CMOS) RAM Volatile memory, 256 bytes
located in AMD embedded
System on Chip (SoC)
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. Press and hold power
button for 12 seconds.
2. Press Windows key + V,
and then press power
button.
Keyboard/mouse (ROM) Non-volatile, 2 KB embedded in
the super I/O controller (SIO2)
Yes N/A
Keyboard/mouse (RAM) Volatile, 256 bytes embedded in
the super I/O controller (SIO2)
No Unplug unit from main power
LOM EEPROM Non-volatile, 2 MB embedded in
LAN controller
No N/A
Trusted Platform Module (TPM) Non-volatile; 51 KB ROM for
firmware and 38 KB system
parametric data
No
3
Follow instructions below
under “Clearing TPM”
Nonvolatile memory usage 73