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Dell PowerEdge R750XS is a rack-mount server for which acoustical out ranges from that appropriate for an office to that of data centers. Acoustical performance is provided in terms of two configurations: R750XS Software Defined Storage (with rear storage) & R750XS Entry. Configuration details are provided in Table 29, and acoustical performance data for these configurations are in Table 30.
Although the R750XS 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 | R750XS Software Defined Storage (with rear storage) | R750XS Entry |
CPU Type | Intel Ice Lake | Intel Ice Lake |
CPU TDP | 150W | 105W |
CPU Quantity | 2 | 1 |
RDIMM Memory | 16GB, DDR4 | 8GB, DDR4 |
Memory Quantity | 8 | 1 |
Backplane Type | Front 12x 3.5" BP + rear 2x 2.5” BP | 8x 3.5" BP |
HDD Type | SATA 3.5" 7.2K + rear 2.5” NVME | SATA 3.5" 7.2K |
HDD Quantity | 12+2 | 2 |
Flash Drives | X | X |
Flash Quantity | X | X |
PSU Type | 1400W | 800W |
PSU Quantity | 2 | 1 |
OCP | 2x10G | 4x1G |
PCI 1 | Adapt H345 | X |
PCI 2 | X | X |
PCI 3 | X | X |
PCI 4 | X | X |
PCI 5 | BROADCOM Dual port NIC Card (25G) | X |
PCI 6 | X | X |
M.2 BOSS | BOSS 1.5(OS) | X |
PERC | X | Front H345 |
Configuration | R750XS Software Defined Storage (with rear storage) | R750XS Entry | |
Acoustical Performance: Idle/ Operating @ 23 °C Ambient | |||
LwA,m | Idle | 6.7 | 4.7 |
Operating | 6.7 | 4.7 | |
Kv | Idle | 0.4 | 0.4 |
Operating | 0.4 | 0.4 | |
LpA,m | Idle | 52 | 33 |
Operating | 52 | 34 | |
Prominent tones | Prominence ratio < 15 dB | No audible tones | |
Acoustical Performance: Idle @ 28 °C Ambient | |||
LwA,m (B) | 7.2 | 5.2 | |
Kv (B) | 0.4 | 0.4 | |
LpA,m (dB) | 57 | 35 | |
Acoustical Performance: Max. Loading @ 35 °C Ambient | |||
LwA,m (B) | 7.6 | 5.6 | |
Kv (B) | 0.4 | 0.4 | |
LpA,m (dB) | 62 | 40 |
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.