NEC POWERMATE PRO150, Руководство по обслуживанию

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Option Installation 3-9
6.
Attach any signal cables required by the expansion board.
7. Replace the system unit side panel (see “Replacing the Side Panel” in this section).
Expansion Board Removal
1.
Remove the system unit side panel (see “Removing the Side Panel” in this
section).
2. If you have any cables connected to the board that you need to remove, label the
connectors before you remove them.
3.
Remove the screw that secures the board to the support bracket (see “Expansion
Board Installation” in this section).
4. Pull the board out of the connector. You might have to gently rock the board
from side-to-side to release it from its connector.
5. Replace the system unit side panel (see “Replacing the Side Panel” in this section).
SIMM Upgrade
SIMM sticks are installed into SIMM sockets on the system board. The system board
provides four SIMM sockets and supports up to 128 MB of high-speed memory. The
system supports the following 32-bit (non-parity) SIMMs:
n
1-MB by 32-bit (4-MB stick)
n
2-MB by 32-bit (8-MB stick)
n
4-MB by 32-bit (16-MB stick)
n
8-MB by 32-bit (32-MB stick).
36-bit SIMMs may be used, but parity generation and checking is not supported.
NOTE: SIMM sockets must contain the same
size SIMMs and operate at 60 nanoseconds (ns)
in Fast Page Mode.
The factory installed SIMMs are installed in bank
1 (bank 0 is empty).
CAUTION:
To avoid corrosion between
different metals, only use tin-plated SIMM sticks.
To determine the memory needed for the memory upgrade, see Table 3-1. See “SIMM
Installation” in this section when installing the SIMMs.