Page 38 - Dell PowerEdge R620 Technical Guide

Table 23 details the acoustical performance for the R620.

Configuration Hard Power PCI Operating L WA -UL L pA Prominent
1
2
(23 ± 2°C CPUs drives supply Memory card/HDD mode tones
3
ambient) unit controller (bels) (dBA)
1 x 4
250G 1 x 2GB Idle 3.9 24 None
1 x
Minimum 1 B 495W 1 x PERC
H310
SATA 1333Hz 5
(7.2K) Stress 3.9 24 None

4 x Idle 4.4 31 None
4
300G 2 x 8 x 8GB 1 x PERC
Typical 2 H710
B SAS 750W 1600Hz 1 x Gb NIC
5
(10K) Stress 5.1 39 None
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
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 Dell Enterprise Acoustics white paper.