Table 1. Server specifications (continued)
Specification
Description
apply to you and your server installation. The actual sound pressure levels in your 
installation depend upon a variety of factors, including the number of racks in the 
installation; the size, materials, and configuration of the room; the noise levels 
from other equipment; the room ambient temperature, and employee's location in 
relation to the equipment. Further, compliance with such government regulations 
depends on a variety of additional factors, including the duration of employees' 
exposure and whether employees wear hearing protection. Lenovo recommends 
that you consult with qualified experts in this field to determine whether you are in 
compliance with the applicable regulations.
Electrical input
One or two hot-swap power supplies for redundancy support:  
Table 3.  Electrical input for power supplies
Power supply 100–127 V 
ac
200–240 V ac 240 V dc -48 V dc
500-watt 80 PLUS 
Platinum
√ √ √
750-watt 80 PLUS 
Platinum
√ √ √
1100-watt 80 
PLUS Platinum
√ √ √
1800-watt 80 
PLUS Platinum
√ √
750-watt 80 PLUS 
Titanium
√ √
1100-watt
√
CAUTION: 
•  240 V dc input (input range: 180-300 V dc) is supported in Chinese Mainland 
ONLY.
•  Power supply with 240 V dc input cannot support hot plugging power cord 
function. Before removing the power supply with dc input, please turn off 
server or disconnect dc power sources at the breaker panel or by turning off 
the power source. Then, remove the power cord.
Environment
The server is supported in the following environment: 
•  Air temperature:
–  Operating: 
–  ASHRAE class A2: 10–35°C (50–95°F); when the altitude exceeds 900 m 
(2953 ft), the maximum ambient temperature value decreases by 1°C (1.8°F) 
with every 300 m (984 ft) of altitude increase.
–  ASHRAE class A3: 5–40°C (41–104°F); when the altitude exceeds 900 m 
(2953 ft), the maximum ambient temperature value decreases by 1°C (1.8°F) 
with every 175 m (574 ft) of altitude increase.
–  ASHRAE class A4: 5–45°C (41–113°F); when the altitude exceeds 900 m 
(2953 ft), the maximum ambient temperature value decreases by 1°C (1.8°F) 
with every 125 m (410 ft) of altitude increase.
–  Server off: 5–45°C (41–113°F)
–  Shipping or storage: -40–60°C (-40–140°F)
Chapter 1. Introduction 9