Dell P2421 Statement of Volatility
Summary
This comprehensive technical document provides detailed product information, installation guidance, configuration procedures, and operational instructions to ensure optimal product utilization in professional environments. This document provides comprehensive guidance for a Dell display solution. It covers display setup, image adjustment, input management, and advanced display features to optimize visual performance. It is designed for end users who need reliable technical documentation for deployment, management, and support of the product.
Page 1 Text Content
Statement of Volatility – Dell P2421 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 Dell’s P2421 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 P2421 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 Dell P2421 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 OSD setting: Yes operation?
Purpose Storage of system setting (OSD)
Control the OSD menu and change OSD setting (ex. Brightness,
How is data input to this memory? contrast, color setting) and the setting 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 No operation?
Purpose Storage of VGA EDID
VGA EDID is embedded in the firmware, and copied to EEPROM
How is data input to this memory? after F/W programming.
(or via customized EDID tool)
How is this memory write protected? Hardware and software write protected
May 2020
Page Summary Contents For Dell P2421 Statement of Volatility
Manual Details
| Brand | Dell |
|---|---|
| Pages | 3 |
| File Size | 108.97 KB |
| Published | June 22, 2026 |
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Frequently Asked Questions
Does the Dell P2421 monitor save video data after power is removed?
No, the monitor does not save, retain, or reproduce a signal to internal or external components after power removal.
Which memory types are non-volatile in this monitor?
The monitor contains both volatile memory (which loses data upon power removal) and non-volatile memory ICs like System EEPROM, EDID EEPROMs, and Flash ROMs.
How is the system EEPROM write protected?
The system EEPROM is software write protected.
What is the purpose of the Flash ROM ICs?
The Flash ROMs store firmware and USB firmware respectively.