IBM PureFlex System and IBM Flex System Products and Technology

145

The x240 is a half wide compute node and requires that the chassis shelf is installed in the

IBM Flex System Enterprise Chassis. Figure 5-5 shows the chassis shelf in the chassis.

Figure 5-5 The IBM Flex System Enterprise Chassis showing the chassis shelf

The shelf is required for half-wide compute nodes. To allow for installation of the full-wide or

larger, shelves must be removed from within the chassis. Slide the two latches on the shelf

towards the center and then slide the shelf from the chassis.

5.2.4 System architecture

The IBM Flex System x240 Compute Node type 8737 features the Intel Xeon E5-2600 series

processors. The Xeon E5-2600 series processor has models with two, four, six, and eight

cores per processor with up to 16 threads per socket. The processors have the following

features:

򐂰 Up to 20 MB of shared L3 cache

򐂰 Hyper-Threading

򐂰 Turbo Boost Technology 2.0 (depending on processor model)

򐂰 Two QuickPath Interconnect (QPI) links that run at up to 8 GT/s

򐂰 One integrated memory controller

򐂰 Four memory channels that support up to three DIMMs each

The Xeon E5-2600 series processor implements the second generation of Intel Core

microarchitecture (Sandy Bridge) by using a 32nm manufacturing process. It requires a new

socket type, the LGA-2011, which has 2011 pins that touch contact points on the underside of

the processor. The architecture also includes the Intel C600 (Patsburg B) Platform Controller

Hub (PCH).

146 IBM PureFlex System and IBM Flex System Products and Technology

Figure 5-6 shows the system architecture of the x240 system.

Figure 5-6 IBM Flex System x240 Compute Node system board block diagram

The IBM Flex System x240 Compute Node has the following system architecture features as

standard:

򐂰 Two 2011-pin type R (LGA-2011) processor sockets

򐂰 An Intel C600 PCH

򐂰 Four memory channels per socket

򐂰 Up to three DIMMs per memory channel

򐂰 24 DDR3 DIMM sockets

򐂰 Support for UDIMMs, RDIMMs, and new LRDIMMs

򐂰 One integrated 10 Gb Virtual Fabric Ethernet controller (10 GbE LOM in diagram)

򐂰 One LSI 2004 SAS controller

򐂰 Integrated HW RAID 0 and 1

򐂰 One Integrated Management Module II

򐂰 Two PCIe x16 Gen3 I/O adapter connectors

򐂰 Two Trusted Platform Module (TPM) 1.2 controllers

򐂰 One internal USB connector

QPI

links

(8 GT/s)

x4 ESI link

I/O connector 1

10GbE LOM

HDDs or

SSDs

LSI2004

SAS

PCIe x4 G2

USB

Internal USB

Front USB

Intel

C600

PCH

Management to midplane

Front KVM port

IMM v2

Video &

serial

PCIe x8 G2

I/O connector 2

Sidecar connector

PCIe x16 G3

PCIe x16 G3

PCIe x8 G3

PCIe x8 G3

PCIe x16 G3

Intel

Xeon

Processor 1

DDR3 DIMMs

4 memory channels

3 DIMMs per channel

Intel

Xeon

Processor 2

x1 USB