5486m520.fm Draft Document for Review October 18, 2004
124 IBM Eserver i5 and iSeries System Handbook
External towers
Migration towers are not supported on the Model 520. PCI towers are supported
with upgrades for migration only.
Refer to Chapter 15, “Towers, racks, and high-speed link” on page 259, for
information about supported towers for the Model 520, and “Summary of the
iSeries expansion units and towers” on page 105 for a table of configuration
maximums.
Model 520 upgrades
See Chapter 16, “Upgrades to iSeries servers” on page 307, for general upgrade
considerations and server-to-server upgrade possibilities. Supported model
upgrades for the Model 520 are identified in IBM Eserver iSeries Supported
Upgrades, REDP-0322.
Note: The placement of PCI cards follows special rules. Refer to “PCI card
technology” on page 340 and PCI Card Placement Rules for the IBM
Eserver iSeries Server Version 5 Release 2, REDP-3638, before you
propose any configuration.