Main Logic Board And Component Replacement; Sbus Cards; Removing Sbus Cards - Sun Microsystems SPARCclassic Service Manual

11
CHAPTER
Main Logic Board and Component
Replacement
This chapter describes procedures for removing and replacing the main logic board
and its components. In addition, the default SPARCstation LX ISDN jumper settings
are also described.
4 "SBus Cards" on page 107
4 "Video SIMM (VSIMM)" on page 113
4 "DRAM Single In-line Memory Modules (DSIMMs)" on page 117
4 "Main Logic Board" on page 124
4 "Nonvolatile RAM (NVRAM)" on page 138
4 "SPARCstation LX ISDN Jumper Settings" on page 140

SBus Cards

This section describes the procedures for removing and replacing a faulty SBus card.
If you are adding a new SBus card, and not replacing one, refer instead to the Desktop
SPARC Hardware Owner's Guide and the documentation supplied with the new card.

Removing SBus Cards

To remove an SBus card from the system unit:
1. Prepare to work on the system as described in Chapter 6, and in Chapter 7.
107