User Manual

Table 18. Acoustical configurations of R350 (continued)
Configuration Volume Feature Rich
OCP N/A N/A
Power Supply Unit 600 W (60 mm) 600 W (60 mm)
Power Supply Quantity 2 2
PCI 1 PERC H355, 2x 1GbE Broadcom PERC H755, 2x 1GbE Broadcom
Bezel Yes N/A
Other N/A N/A
Table 19. Acoustical performance of R350 acoustical configurations
Configuration Volume Feature Rich
Acoustical Performance: Idle/ Operating @ 25 °C Ambient
L
wA,m
(B) Idle 5.5 5.5
Operating 5.5 5.5
K
v
(B) Idle 0.4 0.4
Operating 0.4 0.4
L
pA,m
(dB) Idle 40 40
Operating 40 40
Prominent tones No prominent tones in Idle and Operating
Acoustical Performance: Idle @ 28 °C Ambient
L
wA,m
(B) 5.5 5.5
K
v
(B) 0.4 0.4
L
pA,m
(dB) 40 40
Acoustical Performance: Max. Loading @ 35 °C Ambient
L
wA,m
(B) 5.6 7.8
K
v
(B) 0.4 0.4
L
pA,m
(dB) 40 63
L
wA,m
: The declared mean A-weighted sound power level (LwA) is calculated per section 5.2 of ISO 9296 (2017) with data
collected using the methods described in ISO 7779 (2010). Data presented here may not be fully compliant with ISO 7779.
L
pA,m
: The declared mean A-weighted emission sound pressure level is at the bystander position per section 5.3 of ISO 9296
(2017) and measured using methods described in ISO 7779 (2010). The system is placed in a 24U rack enclosure, 25 cm above a
reflective floor. Data presented here may not be fully compliant with ISO 7779.
Prominent tones: Criteria of D.6 and D.11 of ECMA-74 are followed to determine if discrete tones are prominent and to report
them, if so.
Idle mode: The steady-state condition in which the server is energized but not operating any intended function.
Operating mode: The maximum of the steady state acoustical output at 50% of Processor TDP or active HDDs per C.9.3.2 in
ECMA-74 .
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Power, thermal, and acoustics