Lenovo ThinkCentre M51 User Manual - Page 20

Specifications

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Specifications This section lists the physical specifications for your computer. Dimensions Height: 89 mm (3.5 in.) Width: 276 mm (10.9 in.) Depth: 273 mm (10.7 in) Weight Minimum configuration as shipped: 6.3 kg (13.4 lb) Maximum configuration: 6.4 kg (14.1 lb) Environment Air temperature: Operating at 0 - 3000 ft (914.4 m): 10° to 35°C (50° to 95°F) Operating at 3000 ft - 6562 ft (2000 m): 10° to 32°C (50° to 89.6°F) Non-operating: 10° to 43°C (50° to 110°F) Humidity: Operating: 8% to 80% Non-operating: 8% to 80% Transit: 8% to 90% Maximum altitude: 2000 m (6562 ft) Electrical input Input voltage: Low range: Minimum: 100 V ac Maximum: 127 V ac Input frequency range: 50/60 Hz High range: Minimum: 200 V ac Maximum: 240 V ac Input frequency range: 50/60 Hz Input kilovolt-amperes (kVA) (approximate): Minimum configuration as shipped: 0.09 kVA Maximum configuration: 0.23 kVA Heat output (approximate) in British thermal units (Btu) per hour: Minimum configuration: 256 Btu/hr (75 watts) Maximum configuration: 682 Btu/hr (200 watts) Airflow Approximately 20 cubic feet (0.57 cubic meters) per minute Acoustical noise-emission values Average sound-pressure levels: At operator position: Idle: 26 dBA Operating: 34 dBA At bystander position - 1 meter (3.3 ft): Idle: 28 dBA Operating: 30 dBA Declared (upper limit) sound-power levels: Idle: 3.8 bels Operating: 4.3 bels Note: These levels were measured in controlled acoustical environments according to the procedures specified by the American National Standards Institute (ANSI) S12.10 and ISO 7779 and are reported in accordance with ISO 9296. Actual sound-pressure levels in a given location might exceed the average values stated because of room reflections and other nearby noise sources. The declared sound-power levels indicate an upper limit, below which a large number of computers will operate. 4 User Guide

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Specifications
This
section
lists
the
physical
specifications
for
your
computer.
Dimensions
Height:
89
mm
(3.5
in.)
Width:
276
mm
(10.9
in.)
Depth:
273
mm
(10.7
in)
Weight
Minimum
configuration
as
shipped:
6.3
kg
(13.4
lb)
Maximum
configuration:
6.4
kg
(14.1
lb)
Environment
Air
temperature:
Operating
at
0
-
3000
ft
(914.4
m):
10°
to
35°C
(50°
to
95°F)
Operating
at
3000
ft
-
6562
ft
(2000
m):
10°
to
32°C
(50°
to
89.6°F)
Non-operating:
10°
to
43°C
(50°
to
110°F)
Humidity:
Operating:
8%
to
80%
Non-operating:
8%
to
80%
Transit:
8%
to
90%
Maximum
altitude:
2000
m
(6562
ft)
Electrical
input
Input
voltage:
Low
range:
Minimum:
100
V
ac
Maximum:
127
V
ac
Input
frequency
range:
50/60
Hz
High
range:
Minimum:
200
V
ac
Maximum:
240
V
ac
Input
frequency
range:
50/60
Hz
Input
kilovolt-amperes
(kVA)
(approximate):
Minimum
configuration
as
shipped:
0.09
kVA
Maximum
configuration:
0.23
kVA
Heat
output
(approximate)
in
British
thermal
units
(Btu)
per
hour:
Minimum
configuration:
256
Btu/hr
(75
watts)
Maximum
configuration:
682
Btu/hr
(200
watts)
Airflow
Approximately
20
cubic
feet
(0.57
cubic
meters)
per
minute
Acoustical
noise-emission
values
Average
sound-pressure
levels:
At
operator
position:
Idle:
26
dBA
Operating:
34
dBA
At
bystander
position
-
1
meter
(3.3
ft):
Idle:
28
dBA
Operating:
30
dBA
Declared
(upper
limit)
sound-power
levels:
Idle:
3.8
bels
Operating:
4.3
bels
Note:
These
levels
were
measured
in
controlled
acoustical
environments
according
to
the
procedures
specified
by
the
American
National
Standards
Institute
(ANSI)
S12.10
and
ISO
7779
and
are
reported
in
accordance
with
ISO
9296.
Actual
sound-pressure
levels
in
a
given
location
might
exceed
the
average
values
stated
because
of
room
reflections
and
other
nearby
noise
sources.
The
declared
sound-power
levels
indicate
an
upper
limit,
below
which
a
large
number
of
computers
will
operate.
4
User
Guide