HP 3000/939KS, Upgrade Manual, Page: 26 / 56

1-18 Chapter 1
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 Optimization Procedure for Dual Memory Extenders — Overview
Module installation is a 6-step process:
1. Remove any currently installed pairs of memory modules.
2. Combine the removed and newpairs of memory modules and organize them into four groups:
• 512MB modules
• 256MB modules
• 128MB and 64MB modules (combined in the same group)
• 32MB modules
3. Divide each group into pairs of modules (4 SIMMs) and pairs of modules, if any.
4. Identify each available slot by its slot number and letter (e.g., 0a, 0b, 1a, 1b and so forth) on each
memory extender.
5. Install any pairs of modules as follows:
A. Install from largest to smallest memory size.
B. Install memory by alternating pairs of modules between extenders.
C. Install from lowest numbered available slots to highest number slots on the extender with the most
slots available.
6. Install any remaining modules (2 SIMMs), filling in the lowest-numbered slots on the extender with
the most available slots.
NOTE In the examples that follow, the extenders are labeled "first extender" and "second
extender." It is also useful to refer to these as "Extender 0" and "Extender 1",
corresponding to the lower and upper extender slots in the system memory bay.
NOTE
Adding A Memory Extender
If you are adding a new memory extender at the same time you are adding memory, you
will likely need to remove and re-sequence all the memory modules from your current
memory extender. Review these optimization procedures for dual memory extenders to
understand the need for balancing pairs of memory modules across the two extenders.