HP AlphaServer GS80, Руководство по модернизации

Страница: 13 / 88

Overview 1-3
System Upgrades
A system upgrade is achieved in three ways:
•
Adding a second drawer to a single drawer system
•
Adding a storage device to the single-drawer system
•
Adding an expander cabinet to accommodate any additional I/O devices
This manual details the procedures for the addition of a second drawer to the
system cabinet as well as the installation of a PCI box. The addition of an
expander cabinet is discussed in the AlphaServer GS80 Installation Guide
(EK-GSR80-IN).
CPU Upgrades
In this upgrade, the original 4-Mbyte B-cache B4125 CPUs are replaced with
faster B4166 CPUs (8-Mbyte B-cache) or B4168 CPUs (16-Mbyte B-cache); or
B4166 or B4168 CPUs are added to the existing system. The original system
has the following characteristics:
1. The system cabinet is blue.
2. The system drawer(s) supports 4 Mbytes of CPU B-cache.
3. The system contains 731 MHz B4125 CPUs only.
4. The system runs on a 9.6 ns clock.
The addition of B4166 or B4168 CPUs to an existing system with B4125 CPUs
results in a partial upgrade. In a fully upgraded system, all system drawers
would support the size of the CPU’s B-cache, and all B4125 CPUs would be
replaced with B4166 or B4168 CPUs.
The rules and procedures for upgrading an original system are discussed in
Appendix B.