Lenovo ThinkSystem ST250 V2 Setup Manual page 15

Table 1. Specifications (continued)
Specification
Ambient temperature
management
Environment
Description
Adjust ambient temperature when specific configuration is applied:
• Eight 3.5-inch drives
– When a 95W TDP CPU and a 95W performance heatsink are installed:
– Keep ambient temperature to 35°C or lower. M.2 drives (up to 240GB) are
supported in this configuration.
– Keep ambient temperature to 30°C or lower when a 480GB M.2 drive is
installed.
– When an 80W (or lower) TDP CPU and an 80W heatsink are installed:
– Keep ambient temperature to 35°C or lower. M.2 drives (up to 240GB) are
supported in this configuration.
– Keep ambient temperature to 30°C or lower when a 480GB M.2 drive is
installed.
• Sixteen 2.5-inch drives
– When a 95W TDP CPU and a 95W performance heatsink are installed:
– Keep ambient temperature to 35°C or lower. M.2 drives (up to 240GB) are
supported in this configuration.
– Keep ambient temperature to 30°C or lower when a 480GB M.2 drive is
installed.
– When an 80W (or lower) TDP CPU and an 80W heatsink are installed:
– Keep ambient temperature to 35°C or lower. M.2 drives (up to 240GB) are
supported in this configuration.
– Keep ambient temperature to 30°C or lower when a 480GB M.2 drive is
installed.
• Eight 2.5-inch drives and four 3.5-inch drives
– When an 80W TDP CPU and an 80W heatsink are installed:
– Keep ambient temperature to 40°C or lower.
– GPUs, M.2 drives, 10/25GbE Ethernet adapters, and redundant power supplies
should not be installed in this configuration.
– When a 70W (or lower) TDP CPU and an 80W heatsink are installed:
– Keep ambient temperature to 45°C or lower.
– GPUs, M.2 drives, 10/25GbE Ethernet adapters, and redundant power supplies
should not be installed in this configuration.
The ThinkSystem ST250 V2 server complies with ASHRAE Class A2 specifications.
Depending on the hardware configurations, some models comply with ASHRAE Class
A3 and A4 specifications. System performance may be impacted when operating
temperature is outside ASHRAE A2 specification.
• Air temperature:
– Operating
– ASHRAE 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).
– ASHRAE 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).
– ASHRAE 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).
.
Chapter 1 Introduction
7