Datasheet

Chapter 1. Introduction to IBM Flex Systems and IBM PureSystems offerings 19
Draft Document for Review January 29, 2013 12:52 pm 8068ch01-Intro.fm
Figure 1-10 IBM Flex System x220 Compute Node
The IBM Flex System x220 Compute Node features the Intel Xeon E5-2400 series
processors. The Xeon E5-2400 series processor has models with either four, six or eight
cores per processor with up to 16 threads per socket. The processors have up to 20 MB of
shared L3 cache, Hyper-Threading, Turbo Boost Technology 2.0 (depending on processor
model), one QuickPath Interconnect (QPI) link that runs at up to 8 GT/s, one integrated
memory controller, and three memory channels supporting up to two DIMMs each.
The x220 also supports an Intel Pentium 1403 or 1407 dual-core processor for entry-level
server applications. Only one Pentium processor is supported in the x220. CPU socket 2 must
be left unused and only six DIMM socks are available.
The x220 supports Low Profile (LP) DDR3 memory registered DIMMs (RDIMMs) and
unbuffered DIMMs (UDIMMs). The server supports up to six DIMMs when one processor is
installed and up to 12 DIMMs when two processors are installed. Each processor has three
memory channels, and there are two DIMMs per channel.
The x220 server has two 2.5-inch hot-swap drive bays accessible from the front of the blade
server as shown in Figure 1-10. The server optionally supports three internal disk controllers
allowing a greater number of internal drives up to a maximum of eight with the ServeRAID
M5115 controller and also supports 1.8-inch solid-state drives.
Each IBM Flex System x220 Compute Nodehas an Integrated Management Module version 2
(IMMv2) onboard and uses the Unified Extensible Firmware Interface (UEFI).
Embedded 1 Gb Ethernet controller
Some models of the x220 include an Embedded 1 Gb Ethernet controller (also known as LAN
on Motherboard or LOM) built into the system board. Each x220 model that includes the
controller also has the Compute Node Fabric Connector installed in I/O connector 1 (and
physically screwed onto the system board) to provide connectivity to the Enterprise Chassis
midplane.
The Fabric Connector enables port 1 on the controller to be routed to I/O module bay 1 and
port 2 to be routed to I/O module bay 2. The Fabric Connector can be unscrewed and
removed, if required, to allow the installation of an I/O adapter on I/O connector 1.