IBM System p5 Quad-Core Module Based on POWER5+ Technology: Technical Overview and Introduction

An IBM Redpaper publication

Note: This is publication is now archived. For reference only.

Published 22 August 2006

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IBM Form #: REDP-4150-01
(10 pages)

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Authors: Scott Vetter, Giuliano Anselmi, Bernard Filhol, SahngShin Kim, Gregor Linzmeier, Ondrej Plachy


The Quad-Core Module (QCM) is based on the well-known POWER5 Dual-Core Module (DCM) technology. The dual-core POWER5 chip and the dual-core POWER5+ chip are packaged with the L3 cache chip into a cost-effective DCM package. The QCM is a package that enables entry-level and midrange IBM System p5 servers to achieve additional processing density without increasing the footprint.

Table of contents

The POWER5+ chip
QCM support for IBM System p5 servers
QCM architecture

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