16
Installing a SIM Module
A SIM module simply snaps into a socket on the system board. Pin 1 of
the SIM module must correspond with Pin 1 of the socket.
Pin 1
notch
key
1. Position the SIMM above the socket with the notch in the module
aligned with the key on the socket.
2. Seat the module at a 45° angle into the bank. Make sure it is com-
pletely seated. Tilt the module upright until it locks in place in the
socket.
Cache Memory
The 586STC system board supports 256KB (32Kx32 x2) or 512KB
(64Kx32 x2) pipeline/linear burst, direct map write-back cache installed
at locations U3 and U4 of the system board. Regardless of the amount
of cache memory installed, one SRAM is mounted on location U5 for
tag SRAM to store the cacheable addresses. Refer to page 12 for the
locations of the SRAMs and tag SRAM.
Cacheable Memory
256KB
512KB
64MB
128MB
Cache Size
Cacheable Range
