Dell PowerEdge R815 User Manual

Dell
PowerEdge R815 Technical Guide 25
Table 6. Acoustical Performance for 4-Socket Configuration
4-Socket Configuration @ 23 ± 2 °C
Operating
Mode
L
WA
-
UL
(Bels)
L
pA
(dBA)
Prominent
Tones
CPU HDD RAID DIMM
4x 6400 MT
4x 15 krpm
SAS
PERC
H700
32x
4GB
DDR3
Idle 5.6 41 None
SPEC 50% 5.6 41 None
HDD
active
5.6
41 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.
HDD Active: An operating mode per ISO7779 (1999) definition 3.1.6. The software IOMeter is utilized
to stress the installed HDDs. IOMeter is running ECMA-74 active mode.
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.

Dell PowerEdge R815 Specifications

General

Brand	Dell
Model	PowerEdge R815
Category	Server
Language	English