Table 18. Acoustical Performance - Dell PowerEdge R320 Technical Manual

Table 18 details the acoustical performance for the R320.
Configuration
(23 ± 2°C CPU
ambient)
Typical
1
x4 hot-plug
(80W)
HDD chassis
Feature rich
1
x8 hot-plug
(95W)
HDD chassis
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 calculated per section 4.3 of ISO 9296 (1988) and
pA
measured in accordance with ISO 7779 (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; reference 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
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
30 PowerEdge R320 Technical Guide
Table 18. Acoustical performance
Power
Hard
supply Memory
drives
unit
3 x 3.5"
4 x 4GB
300GB 2 x
SATA 350W
1333Hz
(7.2K)
6 x 2.5"
6 x 8GB
300GB 2 x
SAS 350W
1600Hz
(10K)
) calculated per section 4.4.1 of ISO 9296 (1988) and measured in
WA
PCI
Operating
card/HDD
mode
controller
1 x
4
Idle
Broadcom
Dual Port
1GbE
5
Stress
1 x PERC
H310 mini
1 x Intel
4
Idle
Quad Port
10GbE
5
1 x PERC
Stress
H710 mini
Dell Enterprise Acoustics
1 2
L -UL L
Prominent
WA pA
tones
(bels) (dBA)
4.8 28 None
5.1 30 None
4.8 29 None
5.1 30 None
white paper.
3