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Main Logic Board Expansion
Computer memory is installed using the two DIMM sockets located on the main
logic board as shown in Figure 4-1. Sockets J2 and J3 can accept either single
or dual bank DIMMs.
When adding memory make sure you reference the memory configuration table
and follow these memory expansion guidelines:
•
Install 168-pin DIMMs using 66 MHz (or faster), 64-bit SDRAMs.
NOTE: Install DIMMs supplied by Digital Equipment Corporation
and qualified vendors. DIGITAL does not support computer
performance, product warranty, or service calls resulting from
installation of non-qualified DIMMs.
•
Single bank DIMMs are available in 16 MB and 64 MB memory modules.
Single bank DIMMs have memory chips on only one side of the module.
•
Dual bank DIMMs are available in 32 MB and 128 MB memory
modules. Dual bank DIMMs have memory chips on both sides of the
module.
•
Memory sockets J2 and J3 support both single and dual bank DIMMs.
•
If populating only one DIMM socket, DIMM0 must be used. If DIMM1
socket is populated and not DIMM0, the system will not function
properly.
4-2
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