HP 3000/9x9KS Series, Service Manual, Page: 334 / 352

Memory Configuration Guidelines C-8
Example — Adding Memory to a Single Extender with Existing Memory
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.
CURRENT MEMORY: (3) 128 MB and (2) 64MB pairs of modules
TO BE ADDED: (1) 256MB, (1) 128MB, and (1) 32MB pairs of modules
BEFORE AFTER
Slots
Memory
Modules 1. Remove the single 64MB module from slot 3a/3b.
2. Combine the removed module and the new modules into
groups:
one 256MB module
one 128MB module and one 64MB module
(one pair of modules)
one 32MB module
3. Add the largest pair of modules (the only quad is the
128MB/64MB module) to the lowest available slots (4a/4b
and 5a/5b.
4. Add the 256MB module to the next slot.
5. Add the 32MB modulemodule to the next slot.
Slots
Memory
Modules
0a/0b 128MB 0a/0b 128MB
1a/1b 128MB 1a/1b 128MB
128MB 2a/2b 2a/2b 128MB
3a/3b 64MB 3a/3b 128MB
4a/4b 64MB 4a/4b 64MB
5a/5b empty 5a/5b 64MB
6a/6b empty 6a/6b 256MB
7a/7b empty 7a/7b 32MB
Shaded boxes indicate pairs of modules