Dell PowerEdge M910 Manuel technique - Page 20

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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.

Table 3.

Acoustical Performance of M1000e Chassis with Four M910 Blades Installed

Typical Configuration (per blade) @ 23±2°C

Processors

2 x Intel

E7540

(105W)

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.

Temperature

Operating

Storage

Relative Humidity

Operating

Storage

Maximum Vibration

Operating

Storage

PowerEdge M910 Technical Guide

Ambient in M1000e Chassis

Hard

DIMMs

Drives

2 x 2.5‖

24 x 4GB

SAS (10K)

DDR3

146GB

Table 4.

Environmental Specifications

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

–40°C to 65°C (–40°F to 149°F) with a maximum temperature

gradation of 20°C per hour

20% to 80% (noncondensing) with a maximum humidity gradation of

10% per hour

5% to 95% (noncondensing) with a maximum humidity gradation of

10% per hour

0.26 Grms at 5–350Hz in operational orientations

1.54 Grms at 10–250Hz in all orientations

Operating

Mode

Mezzanine

Cards

4 x dual-

port

Idle

Broadcom

5709

LwA-UL

(bels)

8.1