Dell PowerEdge PDU Managed LED Technical Guide

30 PowerEdge R420 Technical Guide
Table 18 details the acoustical performance for the R420.
Table 18. Acoustical performance
Configuration
(23 ± 2°C
ambient)
CPUs
Hard
drives
Power
supply
unit
Memory
PCI
card/HDD
controller
Operating
mode
L
WA
-UL
1
(bels)
L
pA
2
(dBA)
Prominent
tones
3
Typical
x4 hot-plug
HDD chassis
2
(95W)
3 x 3.5“
300GB
SAS
(15K)
2 x
550W
6 x 4GB
1333Hz
1 x Dual
Port 1GbE
NIC
1 x PERC
H310 mini
Idle
4
5.1 32 None
Stress
5
5.1 33 None
Feature rich
X8 hot-plug
HDD chassis
2
(95W)
6 x 2.5“
300GB
SAS
(15K)
2 x
550W
8 x 8GB
1600Hz
1 x Quad
Port 10GbE
NIC
1 x PERC
H710 mini
Idle
4
5.2 32 None
Stress
5
5.5 33 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 bystander position A- weighted sound pressure level calculated per section 4.3 of ISO 9296 (1988) and
measured in accordance with ISO 7779 (2010). The system is placed within a rack enclosure (base of system is 75 cm
above 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 inside rack in 75 cm height and acoustic transducer, binaural head, 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
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 Dell Enterprise Acoustics white paper.

Dell PowerEdge PDU Managed LED Specifications

General

Brand	Dell
Model	PowerEdge PDU Managed LED
Category	Server
Language	English