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Thermal control also detects and responds to hardware configuration. Thermal management

adjusts cooling according to what the system really needs, and draws lower fan power draw and

generates lower acoustical noise levels than those without such controls.

 Environmental specifications: The optimized thermal management makes the PowerEdge

M620 reliable under a wide range of operating environments as shown in Table 24. When

operating above 30°C ambient, performance impacts may be seen. For more information see

the

Dell PowerEdge M620 Systems Owner's Manual

on Support.Dell.com/Manuals.

The acoustical performance of the PowerEdge M620 is reflected in Table 16. The addition of some

components can cause an increase in fan speed and acoustical output. Contributors to acoustical

output can include:

 The system thermal profile selected in BIOS (for example, Power optimized DAPC or

Performance optimized)

 Express Flash PCIe SSDs

 NDC

 Number of installed processors

 Population of modular, non-homogenous modular deployment

 Impedance of blanks

Configuration

(23 ± 2°C

ambient)

CPUs

Hard

drives

DIMMs

HDD

controller

NDC

PCI cards

Operating

mode

-UL

(bels)

(dBA)

Minimum

1 x 80W

(4 core)

1 x

SATA

(7.2K)

4 x

4GB

Onboard

SATA

None

Any mezz.

card

Standby

6.8

Idle

7.4

Typical

2 x 95W

(8 core)

2 x SAS

(10K)

16 x

8GB

PERC H310

(mini)

1Gb

Any mezz.

card

Standby

6.7

Idle

7.8

-UL is the upper limit sound power levels (L

) calculated per section 4.4.1 of ISO 9296 (1988) and measured in

accordance to ISO 7779 (2010).

is the average A-weighted sound pressure level from the four bystander positions calculated per section 4.3 of

ISO 9296 (1988) and measured in accordance with ISO 7779 (2010). The system is placed in a half rack enclosure (base

of system is 25 cm above reflective floor).

Standby: AC Power is connected to power supply units but the system is not turned on.

Idle: Reference ISO 7779 (2010) definition 3.1.7; system is running in its operating system but no other specific activity.

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