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Chapter 3
CPU/ Boards and Components
3-19
Maximizing Performance
The following guidelines will result in optimal memory interleaving across boards
for performance. These guidelines are for optimal performance and are not
requirements for a functional system. The guidelines apply to systems with no
SIMMS installed and when adding SIMMs to a system; if you are adding SIMMs,
you may need to move some SIMMs to meet the guidelines.
1. Install one bank on each board before installing the second bank on any board.
It does not matter whether the first bank is bank 0 or bank 1.
2. Begin with the largest density banks first (128 Mbyte SIMMs), continue with
medium sized banks (32 Mbyte SIMMs), and finish with the smallest banks (8
Mbyte SIMMs).
3. If there is remaining memory, start filling the second banks on the boards in the
same order as the first banks.
Installation
1. Place the CPU/ board on which the SIMM is to be installed on an
antistatic mat.
2. Carefully remove the new SIMM from its protective packaging and place it on an
antistatic surface.
The bag that the SIMM is packed in makes a good antistatic surface.
3. Press down on the ejector levers at both ends of the SIMM connector slot that will
receive the new SIMM.
The connector slot will not accept the SIMM unless the levers are in the insert
position (
).
4. Align the SIMM with the slot.
Hold the SIMM by its edges and orient it so that the two notches at the bottom of the
SIMM line up with the two tabs in the SIMM connector (
5. Place your thumbs on the top edge of the SIMM and push the SIMM firmly into
its connector (
).
6. Lock the SIMM in place by pushing both ejector levers into the upright position
(
7. Install the CPU/ board and detach the wrist strap.
See Section 3.4.2 “Installing a Board.”
8. As you reboot the system, watch for the system banner to verify that the new
memory is recognized by the system.
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