Lenovo ThinkCentre M50 User Manual - Page 20

Specifications

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Specifications This section lists the physical specifications for your computer. Dimensions Height: 104 mm (4.1 in.) Width: 360 mm (14.2 in.) Depth: 412 mm (16.2 in.) Heat output (approximate) in British thermal units (Btu) per hour: Minimum configuration: 257 Btu/hr (75 watts) Maximum configuration: 683 Btu/hr (200 watts) Weight Minimum configuration as shipped: 8.1 kg (18 lb) Maximum configuration: 9.1 kg (20 lb) Environment Airflow Approximately 0.45 cubic meters per minute (16 cubic feet per minute) maximum Acoustical noise-emission values Air temperature: For microprocessors less than 2.8 GHz: System on: 10° to 35°C (50° to 95° F) System off: 10° to 43°C (50° to 110° F) Maximum altitude: 2134 m (7000 ft) Note: The maximum altitude, 2134 m (7000 ft), is the maximum altitude at which the specified air temperatures apply. At higher altitudes, the maximum air temperatures are lower than those specified. Humidity: System on: 8% to 80% System off: 8% to 80% Average sound-pressure levels: At operator position: Idle: 28 dBA Operating: 30 dBA At bystander position - 1 meter (3.3 ft): Idle: 27 dBA Operating: 29 dBA Declared (upper limit) sound-power levels: Idle: 4.2 bels Operating: 4.3 bels Electrical input Input voltage: Low range: Minimum: 100 V ac Maximum: 127 V ac Input frequency range: 50-60 Hz Voltage switch setting: 115 V ac High range: Minimum: 200 V ac Maximum: 240 V ac Input frequency range: 50-60 Hz Voltage switch setting: 230 V ac Input kilovolt-amperes (kVA) (approximate): Minimum configuration as shipped: 0.08 kVA Maximum configuration: 0.25 kVA Note: Power consumption and heat output vary depending on the number and type of optional features installed and the power-management optional features in use. For microprocessors greater than or equal to 2.8 GHz: Average sound-pressure levels: At operator position: Idle: 29 dBA Operating: 31 dBA At bystander position - 1 meter (3.3 ft): Idle: 28 dBA Operating: 29 dBA Declared (upper limit) sound-power levels: Idle: 4.3 bels Operating: 4.4 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:
104
mm
(4.1
in.)
Width:
360
mm
(14.2
in.)
Depth:
412
mm
(16.2
in.)
Weight
Minimum
configuration
as
shipped:
8.1
kg
(18
lb)
Maximum
configuration:
9.1
kg
(20
lb)
Environment
Air
temperature:
System
on:
10°
to
35°C
(50°
to
95°
F)
System
off:
10°
to
43°C
(50°
to
110°
F)
Maximum
altitude:
2134
m
(7000
ft)
Note:
The
maximum
altitude,
2134
m
(7000
ft),
is
the
maximum
altitude
at
which
the
specified
air
temperatures
apply.
At
higher
altitudes,
the
maximum
air
temperatures
are
lower
than
those
specified.
Humidity:
System
on:
8%
to
80%
System
off:
8%
to
80%
Electrical
input
Input
voltage:
Low
range:
Minimum:
100
V
ac
Maximum:
127
V
ac
Input
frequency
range:
50-60
Hz
Voltage
switch
setting:
115
V
ac
High
range:
Minimum:
200
V
ac
Maximum:
240
V
ac
Input
frequency
range:
50–60
Hz
Voltage
switch
setting:
230
V
ac
Input
kilovolt-amperes
(kVA)
(approximate):
Minimum
configuration
as
shipped:
0.08
kVA
Maximum
configuration:
0.25
kVA
Note:
Power
consumption
and
heat
output
vary
depending
on
the
number
and
type
of
optional
features
installed
and
the
power-management
optional
features
in
use.
Heat
output
(approximate)
in
British
thermal
units
(Btu)
per
hour:
Minimum
configuration:
257
Btu/hr
(75
watts)
Maximum
configuration:
683
Btu/hr
(200
watts)
Airflow
Approximately
0.45
cubic
meters
per
minute
(16
cubic
feet
per
minute)
maximum
Acoustical
noise-emission
values
For
microprocessors
less
than
2.8
GHz:
Average
sound-pressure
levels:
At
operator
position:
Idle:
28
dBA
Operating:
30
dBA
At
bystander
position
-
1
meter
(3.3
ft):
Idle:
27
dBA
Operating:
29
dBA
Declared
(upper
limit)
sound-power
levels:
Idle:
4.2
bels
Operating:
4.3
bels
For
microprocessors
greater
than
or
equal
to
2.8
GHz:
Average
sound-pressure
levels:
At
operator
position:
Idle:
29
dBA
Operating:
31
dBA
At
bystander
position
-
1
meter
(3.3
ft):
Idle:
28
dBA
Operating:
29
dBA
Declared
(upper
limit)
sound-power
levels:
Idle:
4.3
bels
Operating:
4.4
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