Macintosh LC 575: Upgrading VRAM

The Macintosh LC 575, which provides two VRAM SIMM slots, is available in two VRAM configurations:

1. A 512K VRAM configuration, consisting of two 256K VRAM SIMMs. This will provide a maximum of 256 colors to the built-in display.
2. A 1MB VRAM configuration, consisting of two 512K VRAM SIMMs. This will provide a maximum of Thousands of colors (32,768) to the built-in display.

There is no memory soldered onto the logic board. VRAM SIMMs must be 80ns or faster. Both VRAM slots must be populated in order for video to function.