Dell
PowerEdge M910 Technical Guide
20
5.3
Acoustics
Table 3 shows the acoustical performance for a typical configuration of the M1000e chassis with four
PowerEdge M910 blade servers installed. Acoustical performance varies with hardware
configurations.
Acoustical Performance of M1000e Chassis with Four M910 Blades Installed
Table 3.
Typical Configuration (per blade) @ 23±2°C
Ambient in M1000e Chassis
Operating
Mode
LwA-UL
(bels)
Processors
Hard
Drives
DIMMs
Mezzanine
Cards
2 x Intel
E7540
(105W)
2 x 2.5‖
SAS (10K)
146GB
24 x 4GB
DDR3
4 x dual-
port
Broadcom
®
5709
Idle
8.1
Definitions
Idle:
Reference ISO7779 (2010) definition 3.1.7; system is running in its OS but has no other specific
activity.
LwA–UL:
The upper limit sound power level (LwA) calculated per section 4.4.2 of ISO 9296 (1988) and
measured in accordance to ISO 7779 (2010).
5.4
Environmental Specifications
Table 4 lists the environmental specifications for the PowerEdge M910.
Environmental Specifications
Table 4.
Temperature
Operating
10°C to 35°C (50°F to 95°F) with a maximum temperature gradation
of 10°C per hour
NOTE: For altitudes above 2950 feet, the maximum operating
temperature is derated 1°F/500ft
Storage
–40°C to 65°C (–40°F to 149°F) with a maximum temperature
gradation of 20°C per hour
Relative Humidity
Operating
20% to 80% (noncondensing) with a maximum humidity gradation of
10% per hour
Storage
5% to 95% (noncondensing) with a maximum humidity gradation of
10% per hour
Maximum Vibration
Operating
0.26 Grms at 5–350Hz in operational orientations
Storage
1.54 Grms at 10–250Hz in all orientations
