Dell PowerEdge M620 Technical Guide - Page 29

Environmental specifications

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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 Minimum 1 x 80W (4 core) Hard drives 1 x SATA (7.2K) DIMMs HDD controller NDC PCI cards Operating mode 4 x 4GB Onboard SATA None Any mezz. card Standby3 Idle4 LWA-UL1 (bels) 6.8 7.4 LpA2 (dBA) 54 59 Typical 2 x 95W 2 x SAS (8 core) (10K) 16 x 8GB PERC H310 (mini) 1Gb Any mezz. card Standby3 Idle4 6.7 7.8 53 62 1LWA-UL is the upper limit sound power levels (LWA) calculated per section 4.4.1 of ISO 9296 (1988) and measured in accordance to ISO 7779 (2010). 2LpA 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). 3Standby: AC Power is connected to power supply units but the system is not turned on. 4Idle: Reference ISO 7779 (2010) definition 3.1.7; system is running in its operating system but no other specific activity.

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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
L
WA
-UL
1
(bels)
L
pA
2
(dBA)
Minimum
1 x 80W
(4 core)
1 x
SATA
(7.2K)
4 x
4GB
Onboard
SATA
None
Any mezz.
card
Standby
3
6.8
54
Idle
4
7.4
59
Typical
2 x 95W
(8 core)
2 x SAS
(10K)
16 x
8GB
PERC H310
(mini)
1Gb
Any mezz.
card
Standby
3
6.7
53
Idle
4
7.8
62
1
L
WA
-UL is the upper limit sound power levels (L
WA
) calculated per section 4.4.1 of ISO 9296 (1988) and measured in
accordance to ISO 7779 (2010).
2
L
pA
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).
3
Standby: AC Power is connected to power supply units but the system is not turned on.
4
Idle: Reference ISO 7779 (2010) definition 3.1.7; system is running in its operating system but no other specific activity.