Sun Microsystems SPARCstation 20 - Subassemblies, Boards, and Components; FIGURE 1-1 Sparcstation 20 System

2 SPARCstation 20 Service Manual • July 1996
FIGURE 1-1 SPARCstation 20 System
Subassemblies, Boards, and Components
The SPARCstation 20 system contains the following subassemblies, boards, and
components (see
FIGURE 1-2):
■ System board
■ SIMMs
■ DSIMMs (eight maximum)
■ VSIMMs (two maximum)
■ Non-volatile SIMM (NVSIMM) (one)
■ SBus card (four maximum)
■ MBus module (two maximum)
■ Hard disk drive, 3.5-inch (88.0-mm), single connector (two maximum)
■ SunCD 2Plus drive or SunCD 4 drive (optional)
■ Diskette drive (3.5-inch) (optional)
■ Power supply (150 watt, two-fan)