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Pi CM4

Repair reference data for Raspberry Pi Compute Module 4 boards.

The CM4 is a SODIMM-form-factor compute module based on the BCM2711 SoC (same as Pi 4). It does not use a "Model A" / "Model B" designation. Available in various RAM (1GB–8GB) and eMMC (0–32GB) configurations, plus a wireless variant (CM4S). Revisions reflect PCB-level hardware changes.

Board Images

Top

CM4 PCB Top

Bottom

CM4 PCB Bottom

Revision Identification

If the carrier board boots, the most reliable way to identify the revision is via software. See the Board Identification guide.

For non-booting modules, the following physical attributes can help narrow down the revision:

Revisions

Revision Key Changes
Rev 1.0 Initial release

Disclaimer: Information provided "as is" with no guarantee of accuracy. Board-level repair involves risk — you accept full responsibility for any outcomes. Not professional repair advice. Full disclaimer.