The Commodore 64 SRAM Module was designed to replace all DRAM memory chips in the Commodore 64 in one module.
This module requires the removal of all 8 DRAM modules soldered to your C64. The best way to install this module then is to replace your current DRAM chips with sockets. Once the sockets are installed, carefully align the pins at the bottom middle which should help to align the rest of the pins.
2 Revisions of this product exist. 1 of them is for the 250407 boards and the other is for the 250425 boards.
You must be careful not to bend these pins because the break easily.