Dell PowerEdge R520 Podręcznik techniczny - Strona 30
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Table 17 details the acoustical performance for the R520.
Configuration
(23 ± 2°C
CPUs
ambient)
Typical
2
Maximum
2
1
L
-UL is the upper limit sound power levels (L
WA
accordance to ISO 7779 (2010).
2
L
is A-weighted sound pressure level at front bystander position measured by binaural head in accordance with ISO7779
pA
(2010) Section 8.6.2. The system is placed inside rack in 75 cm height.
3
Prominent tone: Criteria of D.6 and D.11 of ECMA-74 11th ed. (2010) are followed to determine if discrete tones are
prominent. The system is placed inside rack in 75 cm height and acoustic transducer, binaural head, is at front bystander
position, ref ISO7779 (2010) Section 8.6.2.
4
Idle: Reference ISO 7779 (2010) definition 3.1.7; system is running in its operating system but no other specific activity.
5
Stress: An operating mode per ISO 7779 (2010) definition 3.1.6. The software SPECPower at 50% is activated to stress the
processors and DIMM.
For more information on Dell's acoustical design, see the
Power
Hard
supply
Memory
drives
unit
6 x 2.5"
6 x 4GB
600GB
2 x
SAS
750W
1333Hz
(10K)
8 x 3.5"
12 x
600GB
2 x
32GB
SAS
750W
1333Hz
(15K)
) calculated per section 4.4.1 of ISO 9296 (1988) and measured in
WA
PCI
Operating
card/HDD
mode
controller
1 x Dual
4
Idle
Port 1GbE
NIC
1 x PERC
5
Stress
H710 mini
2 x Quad
4
Idle
Port 1GbE
NIC
1 x FC8
1 x PERC
5
Stress
H710P mini
1 x PERC
H810
Dell Enterprise Acoustics
1
2
L
-UL
L
Prominent
WA
pA
tones
(bels)
(dBA)
5.4
34
None
5.4
34
None
5.8
39
None
5.9
41
None
white paper.
3