Lenovo ThinkSystem SR645 Setup Manual page 13

Table 1. Server specifications (continued)
Specification
Acoustical noise emissions
Electrical input
Environment
Description
• Sound power levels, idle
– 6.0 bels, typical
– 6.9 bels, maximum
• Sound power levels, operating
– 6.5 bels, typical
– 6.9 bels, maximum
Notes:
• These sound power levels are measured in controlled acoustical environments
according to procedures specified by ISO 7779 and are reported in accordance
with ISO 9296.
• The declared acoustic noise levels are based on specified configurations, which
may change slightly depending on configuration/conditions.
One or two hot-swap power supplies for redundancy support:
Table 2. Electrical input for power supplies
Power supply
500-watt 80 PLUS
Platinum
750-watt 80 PLUS
Platinum
750-watt 80 PLUS
Titanium
1100-watt 80 PLUS
Platinum
1100-watt 80 PLUS
Platinum
1800-watt 80 PLUS
Platinum
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.
Your server complies with ASHRAE class A2 specifications. Depending on the
hardware configuration, some server models comply with ASHRAE class A3 and
class A4 specifications, see "" on page .
100–127 V 200–240 V
ac ac
√ √
√ √
√
√ √
√
240 V dc -48 V dc
√
√
√
√
√
√
.
Chapter 1 Introduction
9