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#### Processor Module Overview

Each processor module contains two UltraSPARC T4 chip multiprocessors (CMPs) and 32 DDR3 DIMM slots (16 DDR3 DIMM slots per CMP). CMPs are designated `/SYS/PM` x`/CMP0` and `/SYS/PM` x`/CMP1`.

If only one PM is installed in the server, the single processor module must be installed in the lower PM slot (slot 0) and a filler panel must be installed in the upper PM slot (slot 1).

Figure 18 Processor Module Configuration Reference

Figure Legend

1 Processor module 1 or filler panel

2 Processor module 0

##### Related Information

- Processor Module LEDs

- Locate a Faulty Processor Module

- Remove a Processor Module

- Install a Processor Module

- Verify Processor Module Functionality

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