Sun Microsystems Desktop SunStation Sun-3/75 Manual page 47

Chapter 3
—
Basic Hardware
Configuration and Options
33
Table 3-1
3.4.
Options
for the
Sun-
3/75
Table 3-2
2061 Expansion Board
HO
Connectors on
the
CPU
Card
Connector
Name
Ethernet
Video
Keyboard
(including
Mouse)
Serial Port
A
Serial
Port
B
Pinouts of
these connectors
are
listed in
Appendix A; an
illustration
of
their loca-
tion
is
given
in
Chapter
2.
The 2060
CPU
board
supplies a
minimum
of
two megabytes
and
a
maximum
of
four
megabytes of main memory
for the Sun-3/75;
additional
memory
is
pro-
vided
by
the
2061 Expansion
card.
Each
2061 Expansion board
arrives
from
the factory with
its
jumper
blocks
correctly
set
for
your
particular configuration.
The
2061 Expansion
board goes
in the upper
slot.
System
Memory
—
Basic
and
Optional Configurations
Option
Number
Memory
on Card
Sun-3/75M
-
2
2
Mbytes
(on
CPU
board)
Sun-3/75M
-
4
4 Mbytes
(on
CPU
board)
Sun-3/75M
-
102
2
Mbytes
(on
Expansion
board)
Sun-3/75M
-
104 4
Mbytes
(on Expansion
board)
Thus,
a
maximum
of
8
Mbytes
are allowed.
The
2061 expansion board
resides in the upper
slot
of
the backplane. The
memory
on
the
2061 expansion board
is
connected
to the processor by
the
P2
bus.
The 2060
CPU
board
supplies
a
minimum
of
two megabytes
(and
a
maximum
of
four
megabytes) of main
memory
for the Sun-3/75;
additional
memory
is
pro-
vided by
the
2061 expansion
card.
The
expansion
card contains up
to 144
memory
chips, in several
optional configurations:
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