I recently developed a popular board called RAMesses, which upgrades an Amiga 500 / 2000 / Commodore CDTV to 2MB of Chip RAM without any soldering" : r/ amiga
Installing the BooBip Amiga 500 2MB RAM upgrade - YouTube
2MB CHIP RAM replacement PCB's for A500+ and upcoming A500++ boards - English Amiga Board
GitHub - LIV2/A500-2Meg-Chip-ram: An Adapter to retrofit a 2MB agnus into a 1MB Amiga 500/2000
RAMesses II Amiga 2MB Chip RAM upgrade from Retro Supplies on Tindie
Lotharek's Lair
RAMesses II Amiga 2MB Chip RAM upgrade from Retro Supplies on Tindie
Amiga 500 2 MB chip memory expansion - Amiga Shop
Commodore Amiga LIV2 A500/A2000 2MB Chip RAM Mod - YouTube