To achieve 32MB, the single 8MB SIMM must be removed first. This is accomplished by having one 8MB SIMM and one 16MB SIMM in the machine. Place the SIMMs that will accomplish the RAM configuration you want on top and place the SIMM configuration you currently have on the bottom. The result above is one 16MB SIMM and no 8MB SIMMs. So, you need to add one 16MB SIMM and you don't need to add or remove any 8MB SIMMs.
Positive results indicate SIMMs to be added and negative results indicate SIMMs to be removed.
Your machine may not accommodate 10MB of RAM, but it might be able to handle 12MB, or a some other configuration. In some cases your original SIMMs can remain in your LaserWriter even though you plan on adding extra SIMMs. Acknowledgments Information in this document was gleaned from Apple's Tech Info Library, SIMMstack 4.6, and other Apple sources.