Dell Latitude E5550/5550 (Late 2014) - Manual (Page 2)

Dell - Internal Use - Confidential
Description
Reference
Designator
Volatility Description
User
Accessible
for external
data
Remedial Action (Action
necessary to prevent loss of
data)
present timing information for
correct operation of
system memory.
RTC
CMOS –
BBRAM
(battery
backed
up) UC1 Non Volatile memory, 256
Bytes.
Stores CMOS information. No N/A
Video
memory
– frame
buffer Using
system
memory
Volatile memory in off
state.
2 GB DDR3L for discrete
graphics systems. No N/A
Intel ME
Firmware UC2 Non Volatile memory, 64
Mbit (8MB) for vPro and non-
vPro, Intel ME firmware for
system configuration,
security and protection No N/A
Hard
drive(s) User
replaceable
- one
Non Volatile magnetic
media, various sizes in GB.
May also be SSD (solid
state flash drive). Yes Low level format
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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© 2014 Dell Inc.
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