Dell PowerEdge R415 - Acoustical Performance

Dell
26
PowerEdge R415 Technical Guide
Table 7. Acoustical Performance
Configuration @ 23 ± 2 °C
Operating
Mode
L
WA
-UL
(Bels)
L
pA
(dBA)
Prominent
Tones
CPU
RAID
DIMM
Power Supply
1 x AMD 4122
4 core 2.2GHz
Embedded
SAS 6/iR
1 x 1GB
1 x 480W
Non-
redundant
Idle
5.5
39
None
Stressed
5.5
39
None
2 x AMD 4122
4 core 2.2GHz
Embedded
SAS 6/iR
4 x 2GB
2 x 500W
Redundant
Idle
5.6
40
None
Stressed
5.6
40
None
2 x AMD 4184
6 core 2.8GHz
PERC H800
8 x 8GB
2 x 500W
Redundant
Idle
5.9
46
None
Stressed
6.4
46
None
Definitions
Idle: Reference ISO7779 (1999) definition 3.1.7; system is running in its OS but no other specific activity.
Stressed Processor: An operating mode per ISO7779 (1999) definition 3.1.6. The software SPECPower_ssj2008
is utilized to stress the processors. SPECPower is set to 50% loading.
LwA – UL: The upper limit sound power level (LwA) calculated per section 4.4.2 of ISO 9296 (1988) and
measured in accordance to ISO 7779 (1999).
LpA: Average bystander A-weighted sound pressure level. The system is placed in a rack with its bottom at
25 cm from the floor. The acoustic transducers are at the four bystander positions, ref ISO7779 (1999)
Section 8.6.2.
Prominent tone: Criteria of D.5 and D.8 of ECMA-74 9th ed. (2005) are followed to determine if discrete
tones are prominent. The system is placed in a rack with its bottom at 75 cm from the floor. The acoustic
transducer is at front bystander position, ref ISO7779 (1999) Section 8.6.2.