System Bus Options
Memory
Modules
The system can support up to four memory modules, for a
maximum memory capacity of 2 GB. A minimum of one memory
module is required.
Warning
Before installing a memory module, you should turn
off all power to the system (both AC and DC). Refer
to ‘‘Powering Down the System’’ in Chapter 1 for
information about turning off AC and DC power.
Memory is available in 64-MB, 128-MB, and 512-MB variations.
See the Digital Systems and Options Catalog for order numbers
and configuration information or call 1-800-DIGITAL (U.S.A. and
Canada) or your authorized Digital Partner for assistance.
External I/O
A CPU slot (system bus slot 1, CPU 2) can be substituted for
additional I/O expansion.
Note
The external I/O module will be available on the model
4/275 system.
3–22 Options and Upgrades
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