Reference Guide

Month yyyy
InternalUse‐Confidential
Statement of Volatility – Dell Precision 3930 Rack
Workstation
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
The Dell Precision 3930 Rack Workstation, Statement of Volatility 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 Dell Precision
3930 Rack Workstation 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)
N/A U3 N/A No N/A
System
BIOS
U60
NonVolatilememory,256Mbit(32MB),System
BIOSforbasicbootoperation,PSA(onboarddiags),
PXEdiags.
No N/A
ECFlash
U74
NonVolatilememory,4Mbit,ECEEPROMforsystem
temperaturemonitoretc.
No N/A
AQC107
10G
controller
Flash
U51
NonVolatilememory,32Mbit.ForMACaddress
settings
No N/A
CPLD
U66 NonVolatilememory,forbasicbootsequenceetc. No N/A
System
Memory–
DDR4
memory
FourUDIMM
connectors:
CON1,CON2,CO
N3,CON4
N/A Yes Poweroffsystem
RTCCMOS
BATT1 NonVolatilememory,
StoresCMOSinformation.
No N/A
Hard
drive(s)
Userreplaceable
‐oneortwo.
NonVolatilemagneticmedia,varioussizesinGB.
MayalsobeSSD(solidstateflashdrive).
Yes Lowlevelformat
EEPROM U11(Riser1A)  4KbitserialI²CbusEEPROMforPCIEReDriver
equalizationsetting
No N/A
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.
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