Memory Information
	RAM Speed SIMM type On Board RAM Number of SIMM Slots Supported sizes in MB Maximum RAM Virtual Memory On Board VRAM Number of VRAM slots	150ns 30 pin 1MB 2 .256, 1 4MB no none none

Notes

The Macintosh Classic comes with 1MB on the logic board. The memory expansion card has 1MB soldered onto it and two SIMM slots. Using two 1MB SIMMs, a maximum of 4MB is possible. Be sure to configure the jumper as shown when memory is added to the card. The Macintosh Classic can perform erratically if 1MB SIMMs containing two chips are installed. When upgrading memory, be sure to use 8 chip SIMMs.