Dell Precision M4800 (Late 2013) User Manual

Page 2

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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)

CMOS1

Non Volatile memory, 64
Bytes.
Stores CMOS information.

No

Video
memory –
frame
buffer

On MXM
cards
(nVidia
N15X or
AMD
Saturn):

Volatile memory in off state.
4/8 GB GDDR5 for nVidia
N15EQ1/EQ3/EQ5 discrete
graphics systems.
2 GB GDDR5 for AMD Saturn
discrete graphics systems.

No

N/A

LOM Serial
Flash
Memory

UH1

Non Volatile memory, built
in PCH for MAC address,
LED mode, WOL settings,
PXE settings.

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)

and Hybrid HDD.

Yes

Low level format

CD-
ROM/RW/
DVD/
DVD+RW/
Diskette
Drives

User
replaceable

Non Volatile optical media.

Yes

Low level
format/erase

Internal
ROM for
EEDID

U23

Non Volatile, built in
RTD2136R, eDP to LVDS
converter for EDID

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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