Dell PowerEdge T20 - Manual

2013 - 07
Statement of Volatility – Dell PowerEdge T20
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the
problem.
The Dell PowerEdge T20 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. Components chosen as user-definable configuration options (those not
soldered to the motherboard) are not included in the Statement of Volatility. Configuration option information (pertinent to options
such as microprocessors, remote access controllers, and storage controllers) is available by component separately. The
following NV components are present on the Dell PowerEdge T20 server.
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
SMSC5555 UO1 96K bytes non-volatile
memory.
2K bytes non-volatile memory for
keyboard controller. No N/A
System BIOS SPI_1, SPI_3 Non-volatile memory, 64M
bits (8MB), 32Mbits (4MB)
System BIOS and Video
BIOS for basic boot operation,
PSA (on board diags.) No N/A
TPM UF2 4K bytes non-volatile memory
located in the TPM module. No N/A
System
Memory –
DDR3 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
1GB to 8GB. Yes Power off system.
System
memory SPD
EEPROM On memory
DIMM(s) –
one, two,
three, or four
present Non-volatile EEPROM
memory. 2K bits (256 bytes).
One Device present on each
DIMM.
Stores memory manufacturer
data and timing information
for correct operation of
system memory. No N/A
RTC CMOS BATTERY Volatile battery back-backed
CMOS memory 256 bytes.
Stores CMOS information. No Removing the on
board Coin
Cell battery.
Video memory UMA
architecture-
uses system
DDR3. Volatile memory in off state.
UMA uses main system
memory size allocated out of
main memory. No Enter S3-S5
state below.