Dell戴尔Dell U2722D Statement of Volatility 说明书 用户手册

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Mar 2021
Statement of Volatility – Dell U2722D
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the
problem.
The Dell U2722D 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 U2722D 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
W25Q32JVS
SJQ SOIC
8P 208MIL
U303 Non-volatile Flash memory,
32M bit. To store firmware.
Delta-E & Uniformity
calibration data.
No Part place on Interface Board,
it has hardware/software write
protected.
EEPROM
GT24C32B-
2GLI-TR
SOIC 8P
U302 Non-volatile memory,
32Kbit, To store Scaler data.
No Part place on Interface Board,
it has hardware/software write
protected.
EEPROM
GT24C02A-
2GLI-TR SO
8P
U1201/U120
2
Non-volatile memory, 2k bit.
To store HDMI EDID,
No Part place on Interface Board,
it has hardware/software write
protected.
Serial Flash
ROM
W25X40CL
SNIG SOIC
8P 150MIL
U1906 Non-volatile Flash memory,
4M bit. To store Hub
firmware.
No Part place on Interface Board,
it has hardware/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.