Macintosh Performa 450 Troubleshooting

The Macintosh Performa 450 is a Macintosh Performa rebadge of the Macintosh LC III — 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 III Troubleshooting page applies in full: use it for power, video, capacitor, storage and audio diagnosis.

The Performa 450 is a rebadged LC III (25 MHz 68030). Use the LC III page for diagnosis.

Common faults (shared with the Macintosh LC III)

As with the Macintosh LC III, 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 III Troubleshooting.

Related pages

References

↑ "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.

[perf-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.

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