Sun Microsystems SPARCstation 20 User Manual

Contents vii
11. System Board and Component Replacement 143
MBus Module 143
Removing a Single-Wide MBus Module 143
Installing a Single-Wide MBus Module 146
Removing a Double-Wide MBus Module 147
Installing a Double-Wide MBus Module 149
SBus Card 152
Removing an SBus Card 152
Installing an SBus Card 156
DSIMMs, VSIMMs, and NVSIMMs 159
DSIMM 159
VSIMM 160
NVSIMM 161
Removing a SIMM 161
Installing a SIMM 163
Auxiliary Video Board 168
Removing an AVB 168
Installing an AVB 170
System Board 171
Removing the System Board 171
Jumper Settings 173
Installing the System Board 175
OpenBoot PROM 177
Removing an OpenBoot PROM 178
Installing an OpenBoot PROM 179
NVRAM/TOD 180
Removing a NVRAM/TOD 180

Sun Microsystems SPARCstation 20 Specifications

General

Brand	Sun Microsystems
Model	SPARCstation 20
Category	Desktop
Language	English