Lenovo 7X19 Setup Manual page 14

Table 1. Specifications, Type 7X18 and 7X19 (continued)
Electrical input
Minimal configuration for
debugging
Acoustical noise emissions
Heat output
ThinkSystem SR850 Setup Guide
6
This server comes with three types of power supply units:
• 750-watt platinum power supply
– Input power 115V or 220V ac
• 1100-watt platinum power supply
– Input power 115V or 220V ac
• 1600-watt platinum power supply
– Input power 220V ac
Two power supplies provide N+1 redundancy support.
CAUTION:
1. 240 V dc input (input range: 180-300 V dc) is ONLY supported in Chinese
Mainland.
2. Power supplies with 240 V dc are not hot-swappable. To remove the power
cord, ensure you have turned off the server or disconnected the dc power
sources at the breaker panel.
3. In order for the ThinkSystem products to operate error free in both a DC or AC
electrical environment, a TN-S earthing system which complies to 60364-1 IEC
2005 standard has to be present or installed.
• Two processors in processor socket 1 and 2
• Two DIMMs in slot 8 and 20
• One power supply
• One drive with RAID adapter and backplane (If OS is needed for debugging)
• Six system fans (fan 1 to fan 6)
• Sound power, idling
– 5.2 bels, minimum
– 5.8 bels, typical
– 6.4 bels, maximum
• Sound power, operating
– 5.8 bels, minimum
– 6.8 bels, typical
– 7.0 bels, maximum
Approximate heat output:
• Minimum configuration: 447 BTU, 131 W (in BTU per hour and watts)
• Maximum configuration: 5265 BTU, 1543 W (in BTU per hour and watts)