13
System Memory
The G486VPC system board can support 1MB to 128MB of memory
using 72-pin SIMMs (Single In-line Memory Module).
The G486VPC system board uses 256KBx36/x32, 1MBx36/x32,
4MBx36/x32, and 16MBx36/x32 HSIM modules installed in SM1-SM3
SIMM sockets or 512KBx36/x32, 2MBx36/x32, and 8MBx36/x32 in-
stalled in SM1 or SM3 SIMM sockets. You will need 1 to 3 pieces of
SIM modules, depending on the amount of memory you intend to install.
Refer to page 12 for the locations of the SIMM sockets.
Note:
The G486VPC system board supports fast page mode DRAM only.
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.
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.
notch
key
