Adding more memory
You can often improve system performance and run larger
programs by increasing the amount of memory available.
Memory chips are very susceptible to static electricity
To increase a system's memory:
Many system resources depend on the amount of memory
installed. For example, the ``kernel i/o bufs'' value
displayed at boot time is determined by the NBUF
kernel parameter. When this parameter is set to zero, the
number of kernel buffers is determined at boot time based
on the amount of memory installed.
For more information on system resources related to
RAM, refer to the Performance Guide.
Bring your system down using the
command and turn off the computer when prompted to do so.
Install extended memory according to the manufacturer's
instructions. Make sure you have set all switches as noted
in the instructions.
With memory cards it is important to check the switch
settings (or software setup) on both the card and
motherboard. Refer to the hardware manuals for your
computer and for the memory card to find the correct switch
settings or software setup.
Memory cards must be configured for extended, not expanded
SCO OpenServer uses only ``extended,'' not ``expanded,''
Boot the operating system. The boot screen details how the
additional memory has affected your system.
If the memory hardware reports an error, the following message is displayed:
PANIC: memory parity error
You then see the software reboot message:
** Safe to Power Off **
- or -
** Press Any Key to Reboot **
If the system repeatedly panics from parity errors,
consider replacing the memory chips.
Some machines have a hardware limitation on the maximum
amount of memory that can be installed. Refer to your
computer hardware manual to determine the maximum amount of
memory you can install. SCO OpenServer can support up to
4GB of main memory.
Memory card compatibility notes
Using the manufacturer's setup program
© 2003 Caldera International, Inc. All rights reserved.
SCO OpenServer Release 5.0.7 -- 11 February 2003