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© Copyright IBM Corp. 2006. All rights reserved. 1
Chapter 1. General description
The IBM System p5 520 and IBM System p5 520Q rack-mount and deskside servers
(9131-52A) give you new tools for managing on demand business, greater application
flexibility, and innovative technology in 1-core, 2-core, and 4-core configurations — all
designed to help you capitalize on the on demand business revolution. To simplify naming,
both products are referred to as
p5-520 or p5-520Q.
The p5-520 and p5-520Q have POWER5+™ processors which provide performance and
reliability advances (or enhancements) over the POWER5™ architecture that it replaces.
Chief among the enhancements is 90 nm processor fabrication technology.
The p5-520 processor is packaged as a 1-core single-core module running at 1.65 GHz with
no L3 cache or as a 1-core single-core module running at 2.1 GHz with 36 MB of L3 cache or
a 2-core dual-core module running at 1.65 or 1.9 or 2.1 GHz with 36 MB of L3. The p5-520Q
offers the same features but comes with a 4-core POWER5+ quad-core module running at
1.5 or 1.65 GHz with two 36 MB of L3 caches.
When you purchase a p5-520 or p5-520Q Express Product Offering that is only available on
an initial order request, you might qualify for processor activation at no extra charge. The
number of processors, total memory, quantity and size of disk, and the presence of a media
device are the only features that determine if you are entitled to a processor entitlement at no
additional charge. Contact your marketing representative regarding the feature for Express
Product Offering or volume offering.
The p5-520 and p5-520Q server have a base of 1 GB of DDR2 memory that can be
expanded to 32 GB, designed for performance and exploitation of 64-bit addressing as used
in large database applications.
The p5-520 and p5-520Q include four front-accessible, hot-swap capable disk bays in a
minimum configuration with an additional four hot-swap capable disk bays as an optional
feature. The eight disk bays can accommodate up to 2.4 TB of disk storage using the 300 GB
Ultra320 SCSI disk drives. Other features included in the p5-520 and p5-520Q are six
hot-plug PCI-X slots with Enhanced Error Handling (EEH), integrated service processor,
integrated 10/100/1000 Mbps two-port Ethernet, two system, two USB, and two Hardware
Management Console (HMC) ports, integrated dual-channel Ultra320 SCSI controller,
hot-swappable power and cooling, and optional redundant power.
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