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Dell - Internal Use - Confidential
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Statement of Volatility – Dell Latitude 5285
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the
problem.
The Dell Latitude 5285 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 Latitude 5285
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)
SSD drive(s)
Non Volatile magnetic media, various
sizes in GB. SSD (solid state flash
drive).
No
Low level format
System
BIOS
UH1
Non Volatile memory, 128Mbit (16MB), and
Video BIOS for basic boot operation, PSA
(on board diags), PXE diags.
No
NA
USB-Type C
PD
U22
Non Volatile memory for USB type-C PD
F/W
No
NA
LCD Panel
EEDID
EEPROM
Part of panel
assembly
Non Volatile memory, Stores panel
manufacturing information, display
configuration data
No
NA
System
Memory –
LPDDR3
memory
Four pcs on
board
LPDDR3
memory:
UD1,UD2,U
D3,UD4
Volatile memory in OFF state (see state
definitions later in text)
Four pcs on board LPDDR3 memory.
System memory size will depend on chip
size and must be between 4 GB,8GB and
16 GB.
Yes
Power off system
RTC CMOS
UC1 (PCH)
Non Volatile memory 256 bytes
Stores CMOS information
No
NA
Video
memory –
frame buffer
For UMA
platform:
Using
system
memory
Volatile memory in off state.
UMA uses main system memory size
allocated out of main memory.
No
Power off system
Intel ME
Firmware
Conbine on
BIOS ROM
Non Volatile memory, Intel ME firmware
for system configuration, security and
protection
No
N/A
Security
Controller
Serial Flash
Memory
U1 (up-sell
USH
daughter
board)
Non Volatile memory, 32 Mbit
(4Mbyte)
No
N/A
TPM
Controller
U4246
Non Volatile memory, 192K bits (24K
bytes) ROM
No
N/A

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