Reference Guide

01/2020
Statement of Volatility – Dell E2420H Monitor
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells
you how to avoid the problem
The purpose of this document is to certify that the Dell E2420H monitor will not save, retain,
or reproduce a signal to any internal or external component after power has been
removed and reapplied to the unit.
The Dell E2420H monitor contains both volatile and non-volatile (NV) memory ICs. Volatile
memory(s) lose their data immediately upon removal of power. Non-volatile memory ICs
continue to retain their data even after the power has been removed. However, no input
video data is written into these memory ICs during operation.
List below contains volatile and non volatile memory ICs used in the Dell E2420H monitor.
System EEPROM
ST M24C16
Size
16Kbit
Type [e.g. Flash PROM,
EEPROM]
EEPROM
Volatility Non-volatile
Can user programs or
operating system write data
to it during normal
operation?
OSD setting: Yes
Purpose
Storage of system setting (OSD)
How is data input to this
memory?
Controls the OSD menu and changes OSD settings
(ex. brightness, contrast, color) and the settings will
be stored into system EEPROM.
How is this memory write
protected?
Software write protected
VGA EDID EEPROM
ST M24C02
Size
2Kbit
Type [e.g. Flash PROM,
EEPROM]
EEPROM
Volatility
Non-volatile
Can user programs or
operating system write data
to it during normal
operation?
No