Lenovo 7D8T, Maintenance Manual

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Environment ThinkEdge SE450 complies with ASHARE Class A3 specifications. Depending on the
hardware configuration, some models comply with ASHARE Class A4 specifications.
System performance may be impacted when operating temperature is outside AHSARE
A3 specification.
• Air temperature:
– Operating
– ASHARE Class A2: 10°C to 35°C (50°F to 95°F); the maximum ambient
temperature decreases by 1°C for every 300 m (984 ft) increase in altitude
above 900 m (2,953 ft).
– ASHARE Class A3: 5°C to 40°C (41°F to 104°F); the maximum ambient
temperature decreases by 1°C for every 175 m (574 ft) increase in altitude
above 900 m (2,953 ft).
– ASHARE Class A4: 5°C to 45°C (41°F to 113°F); the maximum ambient
temperature decreases by 1°C for every 125 m (410 ft) increase in altitude
above 900 m (2,953 ft).
– NEBS Level 3
1
:
• Operating Temperature: 5°C to 40°C. Humidity: 5%~85% RH, Non-
condensing.
• Maximum rate of change(°C /hr) should ≤ 20 Humidity transition rate should
≤10%/hr.
• High Altitude Operating temperature 1829m (6000ft) to 3960m (13000ft): 5-
35°C
• Short Term Operating Temp
2
: -5°C to 55°C.
– Server off: -10°C to 60°C (°F to °F)
– Shipment/storage: -40°C to 70°C (-40°F to 158°F)
• Maximum altitude: 3,000 m (10,000 ft)
• Relative Humidity (non-condensing):
– Operating
– ASHRAE Class A2: 8% to 80%; maximum dew point: 21°C (70°F)
– ASHRAE Class A3: 8% to 85%; maximum dew point: 24°C (75°F)
– ASHRAE Class A4: 8% to 90%; maximum dew point: 24°C (75°F)
– NEBS Level 3: 5%~85% RH, Non-condensing
• Particulate contamination
Attention:
Airborne particulates and reactive gases acting alone or in combination
with other environmental factors such as humidity or temperature might pose a risk to
the server. For information about the limits for particulates and gases, see
“Particulate contamination” on page 7 .
Note:
The server is designed for standard data center environment and recommended
to be placed in industrial data center.
6
ThinkEdge SE450 Maintenance Manual
1. Configuration:
• Chassis: 300mm chassis
• Processor: 28-core 165W with standard 2U heat sink
• Memory: eight 64GB 3200MHz RDIMMs
• M.2: Two 480GB M.2 drives with SATA-RAID
• Internal storage: Four 960GB SATA drives
• PCIe adapters: Intel N810-DA2 (Slot 5), Intel ACC100 (Slot 3, 4, 6)
• No OCP
2. Short-term conditions: period of no more than 96 consecutive hours and a total of not more than 15 days in 1 year.
(This refers to a total of 360 hours in any given year, but no more than 15 occurrences during that 1- year period.)