Table 1. Specifications (continued)
Specification
Description
System fans This server comes with the following fans:
• One heat sink and fan assembly (80 x 80 x 25 mm)
• Two front system fans for drives (92 x 92 x 25 mm)
• One rear system fan (120 x 120 x 25 mm)
Electrical input Universal input:
• Low range: 100 to 127 Vac
• High range: 200 to 240 Vac
• Input frequency range: 50 to 60 Hz
Note: ThinkSystem ST250 V2 only supports AC input power. Do not use 240 VDC
input.
Power supply Depending on your configuration, the server comes with one of the following power
supply configurations:
• One 250W or 300W fixed power supply
• One or two 550W redundant power supplies
Acoustical noise
emissions
The server has the following acoustic noise emissions declaration:
• Sound power level (L
WAd):
– Idling: 4.3 Bel (Typical), 4.4 Bel (Max)
– Operating: 4.3 Bel (Typical), 4.5 Bel (Max)
• Sound pressure level (L
pAm):
– Idling: 27.4 dBA (Typical), 28.6 dBA (Max)
– Operating: 27.6 dBA (Typical), 29.0 dBA (Max)
Notes:
• These sound levels were measured in controlled acoustical environments according
to procedures specified by ISO7779 and are reported in accordance with ISO 9296,
SPL is measured by bystander position(1m).
• The declared acoustic sound levels are based on the following configurations, which
may change depending on configuration/conditions, for example M.2 drive,
Broadcom 57414 25Gb NIC, Broadcom 57416 10Gb NIC, T1000, etc.
– Typical: 1x 80W CPU, 4x 32GB DIMM, 2x HDD or SSD, RAID 5350-8i, 1x 300W
PSU
– Max: 1x 95W CPU, 4x 32GB DIMM, 2x HDD or SSD, 2x 550W PSU
Approximate heat output
• Minimum configuration: 358.05 BTU per hour (105 watts)
• Maximum configuration: 1029.82 BTU per hour (302 watts)
6 ThinkSystem ST250 V2 Maintenance Manual
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