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Macintosh Performa 400 Troubleshooting: Difference between revisions

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[[File:Macintosh Performa 400 (photo).jpg|thumb|right|300px|Macintosh Performa 400. Source: Wikimedia Commons.]]
The '''Macintosh Performa 400''' is a [[Macintosh Performa]] rebadge of the '''Macintosh LC II''' &mdash; the two are the same hardware, sold under different names and bundles.<ref name="perf">[https://lowendmac.com/2015/apples-performa-line-1992-to-1997/ "Apple's Performa Line, 1992 to 1997"], Low End Mac; [https://512pixels.net/2024/08/performa-month-the-first-updates/ "Performa Month"], 512 Pixels; and the corresponding model articles on Wikipedia. Source for the Performa-to-model equivalences.</ref> Because the logic board, analog board and power supply are identical, the '''[[Macintosh LC II Troubleshooting]]''' page applies in full: use it for power, video, capacitor, storage and audio diagnosis.
The '''Macintosh Performa 400''' is a [[Macintosh Performa]] rebadge of the '''Macintosh LC II''' &mdash; the two are the same hardware, sold under different names and bundles.<ref name="perf">[https://lowendmac.com/2015/apples-performa-line-1992-to-1997/ "Apple's Performa Line, 1992 to 1997"], Low End Mac; [https://512pixels.net/2024/08/performa-month-the-first-updates/ "Performa Month"], 512 Pixels; and the corresponding model articles on Wikipedia. Source for the Performa-to-model equivalences.</ref> Because the logic board, analog board and power supply are identical, the '''[[Macintosh LC II Troubleshooting]]''' page applies in full: use it for power, video, capacitor, storage and audio diagnosis.



Latest revision as of 13:09, 16 July 2026

Macintosh Performa 400. Source: Wikimedia Commons.

The Macintosh Performa 400 is a Macintosh Performa rebadge of the Macintosh LC II — the two are the same hardware, sold under different names and bundles.[1] Because the logic board, analog board and power supply are identical, the Macintosh LC II Troubleshooting page applies in full: use it for power, video, capacitor, storage and audio diagnosis.

The Performa 400 is a rebadged LC II (16 MHz 68030, "pizza-box" case). Use the LC II page for its power-supply, recap and video diagnosis.

Common faults (shared with the Macintosh LC II)

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As with the Macintosh LC II, the first steps on any un-serviced unit are to replace the electrolytic capacitors and inspect for PRAM-battery leakage and its corrosion, then confirm the power-supply rails. Full detail, test points and fixes are on Macintosh LC II Troubleshooting.

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References

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  1. "Apple's Performa Line, 1992 to 1997", Low End Mac; "Performa Month", 512 Pixels; and the corresponding model articles on Wikipedia. Source for the Performa-to-model equivalences.