Simm Memory Installation; Simm Upgrade Path - NEC POWERMATE 4100M Service Manual

3-12 Options

SIMM Memory Installation

The system board comes standard with 4 MB of memory. Memory over the first megabyte
of RAM is extended RAM. SIMM kits are 70-ns SIMMs.
Memory expansion options include the following kits.
n
4-MB SIMM kit is a 1 MB x 32 bit SIMM stick.
n
8-MB SIMM kit is a 2 MB x 32 bit SIMM stick.
n
16-MB SIMM kit is a 4 MB x 32 bit SIMM stick.
n
32-MB SIMM kit is a 8 MB x 32 bit SIMM stick.

SIMM Upgrade Path

The SIMM kits install into a SIMM socket on the system board. Different size SIMM up-
grade kits may be intermixed. Each kit is inserted into a socket or bank. The SIMM kits in-
stall into the system board starting with the bank 0 (U1). The system board's four SIMM
sockets are assigned as banks 0 through 3 (see Error! Reference source not found.). The
PowerMate 433D, 466D, and 466M have standard 4 MB of memory installed bank 0. The
PowerMate 4100M has standard 8 MB of memory installed banks 0 and 1. Table Section 3-
3 provides valid SIMM configurations.
NOTE: The metal plating on the SIMM stick
connectors must match the metal plating in the
SIMM sockets of the computer. Use tin-plated
SIMM sticks with tin-plated SIMM sockets.
NOTE: 32-bit SIMM kits are used in the U.S.
and Canada only. 36-bit SIMMs are used else-
where.
NOTE: SIMM banks are not in consecutive or-
der; see Error! Reference source not found. to
identify the banks.