Lenovo ThinkSystem SR655 V3 - Page 14

Expansion slots
• Up to six PCIe slots
• One OCP module slot
PCIe slot availability is based on riser selection. See “Rear view” on page 18 and “PCIe slots and PCIe adapters” on
page 40
.
Storage controller
• ThinkSystem RAID 940-8i 4GB Flash PCIe Gen4 12Gb Adapter
• ThinkSystem RAID 940-16i 4GB Flash PCIe Gen4 12Gb Adapter
• ThinkSystem RAID 940-16i 8GB Flash PCIe Gen4 12Gb Adapter
Note: For more information about the RAID/HBA adapters, see
Lenovo ThinkSystem RAID Adapter and HBA Reference.
Integrated functions and I/O connectors
• Lenovo XClarity Controller (XCC), which provides service processor control and monitoring functions, video
controller, and remote keyboard, video, mouse, and remote drive capabilities.
– The server supports Lenovo XClarity Controller 2 (XCC2). For additional information about Lenovo XClarity
Controller 2 (XCC2), refer to
https://sysmgt.lenovofiles.com/help/topic/lxcc_frontend/lxcc_overview.html.
• Front connectors:
– One VGA connector (optional)
– One USB 3.1 Gen 1 (5 Gbps) connector
– One USB 2.0 connector
– One external diagnostics connector
• Rear connectors:
– One VGA connector
– Three USB 3.1 Gen 1 (5 Gbps) connectors
– One XCC system management port
– Two or four Ethernet connectors on the OCP module (optional)
Network
• OCP module
System fan
• Supported fan types:
– Standard fan 6038 (single-rotor, 17000 RPM)
– Performance fan 6056 (dual-rotor, 21000 RPM)
• Fan redundancy: N + 1 redundancy, one redundant fan rotor
– Without riser 3: four hot-swap system fans (one redundant fan rotor)
– With riser 3: six hot-swap system fans (one redundant fan rotor)
Notes:
• Single-rotor hot-swap fans cannot be mixed with dual-rotor hot-swap fans.
• The redundant cooling by the fans in the server enables continued operation if one rotor of a fan fails.
4 ThinkSystem SR655 V3 User Guide