The following information is a summary of the features and specifications of the server. Depending on the model, some features might not be available, or some specifications might not apply.
Table 1. Specifications, Type 7X18 and 7X19.
Specification
Description
Dimension
2U server
Height: 86.5 mm (3.4 inches)
Width:
With rack handles: 482 mm (19.0 inches)
Without rack handles: 444.6 mm (17.5 inches)
Depth: 763.7 mm (30.1 inches)
Note
The depth is measured with rack handles installed, but without the security bezel installed.
Weight (depending on the configuration)
27.0 kg (59.6 lb) in maximum.
Processor (depending on model)
Supports multi-core Intel Xeon processors, with integrated memory controller and Intel Ultra Path Interconnect (UPI) architecture.
Two processor sockets (expandable up to four) with minimal requirement of two installed on the system board.
Slots: 24 two-way interleaved slots (expandable to 48)
Note
List of supported memory module is different for 1st generation (Skylake) and 2nd generation (Cascade Lake) Intel Xeon processors. Make sure to install compatible memory modules to avoid system error.For a list of supported DIMMs, see: Lenovo ServerProven website.
Lenovo XClarity Controller (XCC), which provides service processor control and monitoring functions, video controller, and remote keyboard, video, mouse, and remote drive capabilities.
One system-management RJ-45 connector on the rear to connect to a systems-management network. This connector is dedicated to the Lenovo XClarity Controller functions and runs at 1 GB speed.
Light-path diagnostics
Four universal serial bus (USB) ports:
Two on the front of the server
One USB 2.0 with Lenovo XClarity Controller management
One USB 2.0 or 3.0 (depending on the model)
Two USB 3.0 on the rear of the server
One serial port
Network
This server supports 1GbE and 10 GbE LOM adapters with the following requirements:
1GbE LOM adapter: maximal bandwidth of network environment is 1GB.
10GbE LOM adapter: minimal bandwidth of network environment is 1GB.
RAID adapter(depending on model)
The following options with support for RAID levels 0, 1, and 10 are available for this server:
Six (60 mm x 38 mm) internal system fans (N+1 redundancy)
Electrical input
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
240 V dc input (input range: 180-300 V dc) is ONLY supported in Chinese Mainland.
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.
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.
Minimal configuration for debugging
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)
Acoustical noise emissions
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
Heat output
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)
Environment
ThinkSystem SR850 complies with ASHRAE Class A2 specifications. Depending on the hardware configuration, some models comply with ASHRAE Class A3 and Class 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).
Server off: 5°C to 45°C (41°F to 113°F)
Shipment/storage: -40°C to 60°C (-40°F to 140°F)
Maximum altitude: 3,050 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)
Shipment/storage: 8% to 90%
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.
To maintain component reliability, system performance might vary at ambient temperature higher than 35°C while all the fans are functioning. With one fan failing, system performance might vary at ambient temperature higher than 27°C.
Particulate contamination Attention: Airborne particulates (including metal flakes or particles) and reactive gases acting alone or in combination with other environmental factors such as humidity or temperature might pose a risk to the device that is described in this document.