Memory Configuration And Simm Installation; Before You Begin - HP 3000/9x9KS Series Upgrade Manual

HP 3000/9x9KS and HP 9000/K2x0/K4x0/Kx70/Kx80 Memory Upgrade Installation
Installation Procedure (HP 3000/9x9KS and HP 9000/K2x0/K4x0/Kx70/Kx80)

Memory Configuration and SIMM Installation

Memory in HP 3000 and HP 9000 servers can be added in many different megabyte combinations
depending on your model, your use of existing memory, your memory upgrade goals, and what
combination of memory modules you install.
NOTE
Regardless of the availability of SIMM slots, the total amount of memory you can install
is dependent on your system model and your operating system. Refer to your system
Owner's Guide.
The configuration guidelines presented in this chapter will successfully optimize most combinations of
memory modules. It is still possible, however, when adding memory to already-configured memory on
two extenders, to meet these guidelines and still generate a warning that your memory is not optimized.
If that happens, remove all memory modules from both extenders and re-install them following the
guidelines provided below.

Before You Begin

Before you begin, you should understand the following definitions:
A SIMM is a single memory Printed Circuit Assembly (PCA) or memory board. SIMMs have memory
on one side of the PCA only. All SIMMs have their size marked on the board near the upper left corner.
A DIMM is a single memory PCA with memory on both sides of the PCA. All DIMMs have their size
marked on the board near the upper left corner, also.
NOTE The acronym SIMM is used throughout this document to indicate either SIMM or
DIMM.
A module is a pair of SIMMs or DIMMs. Memory for your system is purchased and installed only in
modules; never install just one SIMM.
A pair of modules is four SIMM cards.
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