Diagnostic Serial Console: Revision history

27 August 2025

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25 August 2025

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22 August 2025

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21 August 2025

• curprev 16:1116:11, 21 August 2025 Josh talk contribs 5,432 bytes +182 →RAM Chip Identification (Subcode Explanation) undo Tag: Visual edit
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• curprev 11:2711:27, 21 August 2025 Josh talk contribs 5,071 bytes 0 →Connecting to the Diagnostic Console undo Tags: Mobile edit Mobile web edit
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3 April 2025

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12 March 2025

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• curprev 16:0116:01, 12 March 2025 Josh talk contribs 4,970 bytes +4,970 Created page with "The Macintosh Plus, SE and SE/30 feature a built-in diagnostic console accessible via a serial connection, which can be used for detailed hardware troubleshooting. Originally designed for use with specialized Apple diagnostic tools, this diagnostic mode can also be accessed via a standard serial connection using software such as PuTTY or similar serial terminal programs. Adrian Black's spreadsheet on this topic provides the most useful breakdown of how to use the diagnos..."