Table 23. Acoustical Performance - Dell PowerEdge R620 Technical Manual

Table 23 details the acoustical performance for the R620.
Configuration
(23 ± 2°C CPUs
ambient)
Minimum 1
Typical 2
1
L -UL is the upper limit sound power levels (L
WA
accordance to ISO 7779 (2010).
2
L is the average A-weighted sound pressure level from the four bystander positions calculated per section 4.3 of
pA
ISO9296 (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
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 in a half rack enclosure (base of system is 75 cm above reflective floor) and acoustic
transducer is at front bystander position, ref ISO 7779 (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
Stressed processor: An operating mode per ISO 7779 (2010) definition 3.1.6. The software SPECPower at 50% loading is
activated to stress the processors.
For more information on Dell's acoustical design, see the
37 PowerEdge R620 Technical Guide
Table 23. Acoustical performance
Power
Hard
supply Memory
drives
unit
1 x
250G
1 x 2GB
1 x
B
495W
1333Hz
SATA
(7.2K)
4 x
8 x 8GB
300G 2 x
B SAS 750W
1600Hz
(10K)
) calculated per section 4.4.1 of ISO 9296 (1988) and measured in
WA
PCI
Operating
card/HDD
mode
controller
4
Idle
1 x PERC
H310
5
Stress
4
Idle
1 x PERC
H710
1 x Gb NIC
5
Stress
Dell Enterprise Acoustics
1 2
L -UL L
Prominent
WA pA
tones
(bels) (dBA)
3.9 24 None
3.9 24 None
4.4 31 None
5.1 39 None
white paper.
3