Reference Guide

November 2015
Statement of Volatility
Dell Precision Tower 3620 Mini Tower
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells
you how to avoid the problem.
The Dell Precision Tower 3620 Mini Tower contains both “volatile” and “non-volatile” (NV) components.
Volatile components lose their data immediately upon removal of power from the component. Non-volatile
components continue to retain their data even after the power has been removed from the component.
The following volatile and NV components are present on the Dell Precision Tower 3620 Mini Tower
motherboard:
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 lose data)
Embedded
Flash memory in
embedded
controller SMSC
SCH5555V-NU
U138 2K of on-chip ROM and
256 bytes of on-chip
RAM
No N/A
System BIOS SPI1 Non-volatile memory,
128Mbits(16MB), System
BIOS and Video BIOS for
basic boot operation,
ePSA (on board
diagnostics.)
No N/A
TPM Nuvoton
NPCT650JA0YX
UF1 24K bytes non-volatile
memory located in the
TPM module.
No N/A
System Memory
– DDR4 DIMM
memory
Connectors:
DIMM1,
DIMM2,
DIMM3,
DIMM4
Volatile memory in OFF
state (see state
definitions later in text)
One to four modules will
be populated. System
memory size will depend
on DIMM modules and
will be between 4GB to
32GB.
Yes Power off system.
System memory
SPD EEPROM
On memory
DIMM(s)
Non-volatile EEPROM
memory. 2Kbits (256
No N/A