Figure B-2 Dsimm Memory System - Sun Microsystems SPARCstation 20 Service Manual

FIGURE B-2
The SPARCstation 20 system may contain one or more 32-Mbyte DSIMMs. The
Solaris 1.1.1 Version B or later software environment for the SPARCstation 20 system
supports up to eight 32-Mbyte DSIMMs or any combination of 16-Mbyte, 32-Mbyte,
and 64-Mbyte DSIMMs.
The Solaris 2.3 software environment requires kernel patch 101318-34 or later to
support certain 32-Mbyte DSIMM configurations. Install patch 101318-34, available
from your local Answer Center, if additional DSIMMs are installed to create one of
the following memory combinations:
One 32-Mbyte DSIMM and seven 16-Mbyte or seven 64-Mbyte DSIMMs
Two 32-Mbyte DSIMMs and five or more 16-Mbyte or 64-Mbyte DSIMMs
Three 32-Mbyte DSIMMs and three or more 16-Mbyte or 64-Mbyte DSIMMs
Four 32-Mbyte DSIMMs and one or more 16-Mbyte, 32-Mbyte or 64-Mbyte
DSIMMs
Note – Install the patch before installing the DSIMMs or the operating system will
fail to boot
200 SPARCstation 20 Service Manual • July 1996
ADDR [12]
SMC
CONTROL
DSIMM Memory System
DATA [144]
DSIMM
DSIMM
DSIMM
DSIMM
DSIMM
DSIMM
DSIMM
DSIMM
SIMM slot (8)