Concept Guide

May 2021
Statement of Volatility – Dell P2722H
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the
problem.
The Dell P2722H contains both volatile and non-volatile (NV) components. Volatile components lose their data immediately
after power is removed from the component. Non-volatile (NV) components continue to retain their data even after power is
removed from the component. The following NV components are present on the system board.
Table 1. List of Non-Volatile Components on System Board
Description
Reference
Designator
Volatility Description
User
Accessible
for external
data
Remedial Action (Action
necessary to prevent loss of
data)
Serial Flash
ROM
XM25QH80
BJIGT
U302 Non-volatile Flash memory,
8M bit. To store firmware.
No Part place on Interface Board,
it has hardware/software write
protected.
EEPROM
24C02
U1001/U120
1
Non-volatile memory, 2k bit.
To store VGA/HDMI EDID,
No
Part place on Interface Board,
it has hard ware/software write
protected.
EEPROM
24C16
U303
Non-volatile EEPROM 16Kbit.
To store scaler data.
No
Part place on Interface Board,
it has hard ware/software write
protected.
CAUTION: All other components on the system board lose data if power is removed from the system. Primary power
loss (unplugging the power cord and removing the battery) destroys all user data on the memory (DDR3, 1067 MHz).
Secondary power loss (removing the on-board coin-cell battery) destroys system data on the system configuration
and time-of-day information.