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Dell PowerEdge R650 is a rack-mount server appropriate for attended data center environment. Acoustical performance is provided in terms of four configurations: minimum, typical-1 (2.5”), typical-2 (3.5”), and feature rich. Configuration details are provided in Table 17, and acoustical performance data associated with each configuration of PE R650 is provided in Table 18.
Although the R650 is designed for use in data centers, some users may prefer to use it in a quieter setting. Tips for acoustically sensitive environments can be helpful for such a situation. Note however that in most cases, the idle air mover speed of the system cannot be lowered without changing the configuration of the system, and sometimes even a configuration change may not reduce idle air mover speeds.
Finally, please also the following specific cases that result in increase in acoustical output.
Configuration | Minimum | Typical-1, 2.5” | Typical-2, 3.5” | Feature Rich |
CPU Type | Intel Bottom Silver | Intel Low Gold 5 | Intel Low Gold 5 | Intel Top bin |
CPU TDP | 105W / 8C | 150W / 16C | 150W / 16C | 270W / 32C |
CPU Quantity | 1 | 2 | 2 | 2 |
RDIMM Memory | 8GB DDR4 | 32GB DDR4 | 16GB DDR4 | 64GB DDR4 |
Memory Quantity | 8 | 16 | 8 | 32 |
Backplane Type | 4x3.5" BP | 10x2.5" BP | 4x 3.5" BP + 2x 2.5" Rear BP | 10x2.5" BP |
HDD Type | 3.5” 7.2K RPM SATA | 6x 2.5” 10K RPM SAS | 4x 3.5” 7.2K RPM SAS | 2.5” 1TB NVMe |
HDD Quantity | 2 | 10 | 4+2 | 10 |
PSU Type | 800 W | 1400 W | 800 W | 1400 W |
PSU Quantity | 2 | 2 | 2 | 2 |
M.2 | X | BOSS S2 | X | BOSS S2 |
OCP | Dual Port 10GbE | Dual Port 25GbE | Dual Port 10GbE | Dual Port 25GbE |
PCI 1 | X | Dual Port 25GbE | X | Dual Port 200GbE |
PCI 2 | X | Dual Port 25GbE | X | X |
Front PERC | PERC H345 | PERC H745P | PERC H745P | PERC H745P |
LOM Card | 1 GB | 1 GB | 1 GB | 1 GB |
PERC | no | Yes | Yes | Yes |
Configuration | Minimum | Typical-1 | Typical-2 | Feature Rich | |
Acoustical Performance: Idle/ Operating @ 25 °C Ambient | |||||
LwA,m | Idle | 5.0 | 6.4 | 6.0 | 6.4 |
Operating | 5.0 | 6.4 | 6.0 | 6.4 | |
Kv | Idle | 0.4 | 0.4 | 0.4 | 0.4 |
Operating | 0.4 | 0.4 | 0.4 | 0.4 | |
LpA,m | Idle | 35 | 47 | 42 | 47 |
Operating | 35 | 47 | 43 | 47 | |
Prominent tones | No audible tones | Prominence ratio < 15 dB | |||
Acoustical Performance: Idle @ 28 °C Ambient | |||||
LwA,m (B) | 5.3 | 6.6 | 6.4 | 6.8 | |
Kv (B) | 0.4 | 0.4 | 0.4 | 0.4 | |
LpA,m (dB) | 37 | 48 | 47 | 52 | |
Acoustical Performance: Max. Loading @ 35 °C Ambient | |||||
LwA,m (B) | 6.8 | 7.9 | 7.6 | 7.9 | |
Kv (B) | 0.4 | 0.4 | 0.4 | 0.4 | |
LpA,m (dB) | 51 | 60 | 62 | 63 |
LwA,m: The declared mean A-weighted sound power level (LwA) is calculated per section 5.2 of ISO 9296 with data collected using the methods described in ISO 7779 (2010). Engineering data presented here may not be fully compliant with ISO 7779 declaration requirements.
LpA,m: The declared mean A-weighted emission sound pressure level is at the bystander position per section 5.3 of ISO 9296 and measured using methods described in ISO 7779. The system is placed in a 24U rack enclosure, 25cm above a reflective floor. Engineering data presented here may not be fully compliant with ISO 7779 declaration requirements.
Prominent discrete tones: Criteria of Annex D of ECMA-74 & Prominence Ratio method of ECMA-418 are followed to determine if discrete tones are prominent and to report them, if so.
Idle mode: Idle mode is the steady-state condition in which the server is energized but not operating any intended function.
Operating mode: Operating mode is represented by the maximum of the steady state acoustical output at 50% of CPU TDP or active storage drives for the respective sections of Annex C of ECMA-74.