Single Inline Memory Modules (Simms); Sbus Boards - Sun Microsystems SPARCstation 2 Service Manual

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Single Inline Memory Modules (SIMMs)

SBus Boards

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The workstation's sound capabilities can be shown with Soundtool, an
audio demonstration program included with SunOS. To test the
workstation's sound, see "Speaker" in Chapter 4. For additional
information, see "SunOS Features" in Chapter 6 of the SPARCstation 2
Installation Guide, and "Appendix C" in the Sun System User's Guide.
At present, up to 64 MBs of memory, contained in 4 MB Single Inline Memory
Modules (SIMMs), can be added in increments of 16 MBs (see Figures 1-2, 1-3,
and 1-4). See "Single Inline Memory Modules (SIMMs)" in Chapter 4 for
SIMM installation and removal instructions. Also refer to Installing
SPARCstation 2 SIMMs.
Various SBus boards can be added to the system's three SBus slots on the main
logic board. Figures 1-2, 1-3 and 1-4 illustrate the SBus slots. See "SBus
Boards" in Chapter 4 for information on how to remove and replace SBus
boards. The following is a list of some of SBus boards available for a
SPARCstation 2. Note that this is not an inclusive list of all SBus boards
available for the SPARCstation 2.
•
GX Graphics Accelerator Board
This board controls the video output from the system unit, and accelerates
the generation of graphic images. The GX Graphics Accelerator board
occupies two SBus slots on the main logic board.
•
Color Frame Buffer Board
This board occupies one SBus slot. This board controls the video output
from the system unit to a color monitor.
•
Second Ethernet Board
This board provides you with an extra Ethernet port. The Ethernet board is
used in applications in which your SPARCstation 2 acts as a gateway
between two physically distinct Ethernet networks. This board has two
connectors: standard (thick) Ethernet and thin Ethernet, and occupies one
SBus slot.
SPARCstation 2 Field Service Manual—February 1991