Systems Overview; Ibm Power 750 Express Server - IBM Power 750 Technical Overview And Introduction

1.1 Systems overview

Detailed information about the Power 750 Express server and Power 760 systems is within
the following sections. Figure 1-1 shows the front view of the Power 750 and Power 760.
Figure 1-1 Front view of the Power 750 Express and Power 760

1.1.1 IBM Power 750 Express server

The Power 750 Express server (8408-E8D) supports up to four POWER7+ processor dual
chip modules (DCMs). Each of the four processor DCMs is an 8-core DCM packaged with
2 x 4-core chips. All 8-core processor DCMs are either 3.5 or 4.0 GHz mounted on a
dedicated card. The Power 750 is in a 19-inch rack-mount, 5U (EIA units) drawer
configuration. Each POWER7+ processor DCM is a 64-bit, 8-core processor packaged on a
dedicated card with a maximum of 16 DDR3 DIMMs, 10 MB of L3 cache per core, and
256 KB of L2 cache per core. A Power 750 Express server can be populated with one, two,
three, or four DCMs providing 8, 16, 24, or 32 cores. All the cores are active.
The Power 750 Express server supports a maximum of 64 DDR3 DIMM slots, 16 per 8-core
DCM. Memory features (two DIMMs per memory feature) supported are 8, 16, and 32 GB
and run at a speed of 1066 MHz. A system with four DCMs installed has a maximum memory
of 1024 GB. The optional Active Memory Expansion feature enables the effective maximum
memory capacity to be much larger than the true physical memory. Innovative compression
and decompression of memory content using a new hardware accelerator can allow memory
expansion up to 125% for AIX partitions. A server with a maximum of 1024 GB can effectively
be expanded in excess of more than 2 TB. This can enhance virtualization and server
consolidation by allowing more partitions or running more work with the same physical
amount of memory.
The Power 750 Express server delivers great I/O expandability. In addition to the six PCIe
Gen2 slots in the system unit, up to four 12X-attached I/O drawers (FC 5802 or FC 5877),
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IBM Power 750 and 760 Technical Overview and Introduction
Power 750 Express (front views)
Power 760 (front views)