Plugging rules for memory modules in the 9028-21B system
Find information about the configurations and rules that apply to memory modules for the IBM Power S1012 (9028-21B) system.
This information helps you to plan memory module installation in the system.
- The system supports memory modules of 16 GB, 32 GB, or 64 GB.
- Only one memory module feature code is supported on a system.
The following table lists the feature codes of the supported memory modules.
| Size | Feature code |
|---|---|
| 16 GB | EMBN |
| 32 GB | EMBW |
| 64 GB | EMBY |
The following figure shows the memory module locations.Figure 1. Finding the memory module locations 

Refer to the following table for memory module plugging sequences and locations for your
system.
| Total memory modules | Sequence | Memory modules to install | Memory locations |
|---|---|---|---|
| 2 | 1 | 2 | P0-C6, P0-C9 |
| 4 | 2 | 2 | P0-C7, P0-C8 |
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Note: All memory module locations must be the same feature code.
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