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DIY 16MB 30-Pin FPM SIMMs: Supercharge Your Vintage Hardware!

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Bits und Bolts

This is a followup of my 4MB SIMM project. At that time, I created an altered version of SIMM PCBs that integrated a mod to operate EDO memory chips in FPM. A simple switch toggled between both modes and allowed me to get my 386 board to 32MB of system memory. Today, we are pushing the board to the limit! I will attempt to create 16MB SIMMs the maximum supported capacity of 30pin SIMMs. Let's see if I will be successful to get my 386 to 64 or even 128MB!

▬▬▬▬ PCBWay ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
Sponsored by PCBWay: https://pcbway.com/g/lF253I
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!

16MB SIMM PCBs:
https://www.pcbway.com/project/sharep...

My contributions to the Community Project Space at PCBWay:
https://www.pcbway.com/project/member...

▬▬▬▬ UpLateGeek's Project ▬▬▬▬▬▬▬▬▬▬▬▬▬
https://github.com/UpLateGeek/LetsM...

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Visit my website to find affiliate links to most of the tools and products I use
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▬▬▬▬ Timestamps ▬▬▬▬▬▬▬▬▬▬▬▬▬▬
00:00 Intro
01:36 Recap
04:43 Maximum capacity
05:31 Research
08:34 Preparation
09:45 Design PCBs
10:57 Unpacking
11:51 Building SIMMs
16:50 Final touches
17:19 Test
19:29 Where to get?

posted by eyddirub