Overview
This manual describes the upgrade of your DIGITAL Personal Workstation with the latest
hardware enhancements.
Kit Components
Table 1-1 list the parts included in the SN-PBXBB Upgrade Kit for the AA, AB and CA
variations.
For further information, see the DIGITAL Systems and Options Catalog (SOC).
Table 1-1 SN-PBXBB Kit List
Description
Main Logic Board 500 MHz EV56
Main Logic Board 600 MHz EV56
Main Logic Board w/o CPU
Speed button 500a
Speed button 500au
Speed button 600a
Speed button 600au
PC164 Riser
Fan pipe 600 MHz
The Upgrade
Part Number
Used on Model
Variation
54-25222-02
-AA
54-25222-03
-BA
54-25222-04
-CA
74-51176-39
-AA
74-51176-50
-AA
74-51176-55
-BA
74-51176-56
-BA
54-25166-01
-AA, -BA, -CA
74-52419-01
-AA, -BA, -CA
DIGITAL Personal Workstation Upgrade Guide 1–1
1