My AMD 386 DX-40 is sad. It only has access to 8MB of memory. The motherboard this CPU is soldered to supports up to 32MB utilizing all 8 memory slots. Join me in today's episode where I will create 4 SIMM modules with 4MB each. At the end of this project, the AMD CPU will have access to 16MB, but there is a catch: I only have EDO memory chips... Sponsored by PCBWay: PCBWay provides full feature custom PCB prototyping services, 3D printing, and much more. Check them out using my referral link above and get a 5 USD welcome bonus when you sign up as a new customer! Order the 3dfx Voodoo Memory Mod (Revision 1.1) from PCBWay directly: Repository with Gerber files and other useful items for Voodoo Memory Mod (Revision 1.1): UpLateGeek Memory Module Design/Gerber: Soldering iron (FNIRSI HS-01): You can support me on Patreon: 00:00 Intro 01:15 Requirements 03:21 PCBWay 03:56 Assembly 05:17 Why EDO may work 06:48 First test 07:00 Debugging 07:59 Drops of knowledge 11:00 Mod EDO to FPM 12:25 Retest 13:47 Conclusion and future projects