Dell PowerEdge T620 Technical Manual page 34

Table 21 details the acoustical performance for the T620.
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 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
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
Power
Hard
supply Memory
drives
unit
1 x 3.5"
250GB 1 x
1 x 2GB
SATA 495W
(7.2K)
8 x 2.5"
2 x
300GB 8 x 4GB
750W
SAS (15K)
) calculated per section 4.4.1 of ISO 9296 (1988) and measured in
WA
Operating
PCI cards
mode
4
Idle
None
5
Stressed
1 x PERC
4
Idle
H710
1 x 10GbE
5
Stressed
NIC
Dell Enterprise Acoustics
1 2
L -UL L
Prominent
WA pA
tones
(bels) (dBA)
3.7 24 None
3.8 24 None
4.6 30 None
4.6 30 None
white paper.
3