Macintosh Plus Memory Upgrade Guide: Difference between revisions
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* The Macintosh Plus requires SIMMs with '''120 ns or faster''' access time. | * The Macintosh Plus requires SIMMs with '''120 ns or faster''' access time. | ||
* All four SIMM slots must be populated with memory of the '''same capacity''' unless using a mixed 2.5 MB configuration. | * All four SIMM slots must be populated with memory of the '''same capacity''' unless using a mixed 2.5 MB configuration. | ||
** If you are using the 2.5 MB configuration, install the 1 MB SIMMs in Bank | ** If you are using the 2.5 MB configuration, install the 1 MB SIMMs in Bank A and 256 KB SIMMs in Bank B. | ||
* If you are using '''any''' 1 MB SIMMs, you will need to clip the '''R8''' resistor. | * If you are using '''any''' 1 MB SIMMs, you will need to clip the '''R8''' resistor. | ||
[[File:Mac-plus-memory.png|none|thumb|520x520px|Macintosh Plus Memory Guide]] | [[File:Mac-plus-memory.png|none|thumb|520x520px|Macintosh Plus Memory Guide]] | ||