To Install 256K; To Install 512K - IBM Aptiva Hardware Handbook

2.
The middle notch at the bottom divides the cache
module into two unequal halves.
Position the notch over the center divider in the
socket as shown in the next picture, matching the
wide half of the module to the wide half of the
opening in the socket.
The module can be correctly installed only when
Important: the wide set of contacts is inserted into the wide
socket opening.
Push the module straight down into the socket.
To insert cache module:
Position bottom notch over
socket divider as shown.
132 Installing cache memory
cache
memory module
notch
cache memory
module socket
cache memory
module sockets
memory module sockets

To install 256K:

Insert one 256K cache memory module into Bank 0. A
properly-inserted module looks like this:

To install 512K:

Insert one 256K cache memory module into each socket
(Bank 0 and Bank 1). A properly-inserted module looks
like this: