Installing Simms; Location Of Simm Sockets - NEC POWERMATE PRO150 Manual

Installing SIMMs

The system board contains four 72-pin, tin lead SIMM sockets. The sockets
are arranged as socket pair 1 (Figure 5-5, A) and socket pair 0 (Figure 5-5,
B). Two SIMMs make up one socket pair. The types of SIMMs that can be
installed are listed in Table 5-1. When adding memory, follow these
guidelines:
When you install SIMMs, you must completely fill at least one socket
pair; that is, you must install SIMMs in both sockets of the socket pair.
The computer automatically detects the installed memory, so it doesn't
matter which socket pair is used, as long as both sockets in the pair are
filled. If you are installing SIMMs in only one socket pair, install them
in socket pair 1. This will make it easier to add additional SIMMs in
socket pair 0 later.
All SIMMs must be the same size; do not mix SIMM types. For
example, don't install 4 MB SIMMs in socket pair 0 and 8 MB SIMMs in
socket pair 1.
When adding SIMMs, use only tin lead, 72-pin, 60 ns fast page-mode
DRAM. Faster devices will not improve system performance.
You can configure the system memory from 16 MB to 128 MB. Table 5-2
lists the possible combinations of SIMM types and the resulting amount of
system memory. The instructions for installing SIMMs follow Table 5-2.
PowerMate Pro150 System
A
Figure 5-5. Location of SIMM Sockets
B
OM04196
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