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Synchr030/S: 256MiB (fast) RAM in an SE/30
Posted by: eharmon on 2024-09-03 19:29:12
No affiliation, just happened to notice this on Tindie today and haven't seen any discussion on here:

www.tindie.com

Synchr030/S by YMK Devices on Tindie

Synchr030/S is a 256MB SDRAM accelerator PDS card for the Macintosh SE/30.
www.tindie.com www.tindie.com

Synchr030/S combines a custom memory controller with 256MB of SDRAM to double the SE/30's memory capacity and throughput. There's no longer a need to deal with broken SIMM slot tabs, dodgy contacts or aging SIMMs. Synchr030/S provides fastest possible 2-cycle reads and writes to the 68030 CPU, making it the performance equivalent of a 256MB L2 cache that never misses.

Wild product. Seems like it has a PDS passthrough, so I'm not sure how they tested with accelerator cards.

I kinda wonder if this works around some simasimac boards with bad address lines to the RAM slots...like one of mine.

Eventually we'll have a single riser that replaces memory, adds ethernet, has a PDS passthrough for a video card, and a cache connector for an accelerator...in my dreams anyway.
Posted by: ymk on 2024-09-03 19:41:44
Looks like you beat me to it. I was composing a thread that will be up soon.
Posted by: eharmon on 2024-09-03 19:48:22
Looks like you beat me to it. I was composing a thread that will be up soon.
Hah, sorry. My habit of occasionally checking newest on Tindie has it's consequences (usually just for my wallet...).
Posted by: mactothefuture on 2025-03-10 11:36:35
Would there be any way to use this with @zigzagjoe 's 30Video HC?
Posted by: micheledipaola on 2025-03-11 02:54:16
Would there be any way to use this with @zigzagjoe 's 30Video HC?
the official thread mentioned by @ymk is here: https://68kmla.org/bb/index.php?thr...-sdram-accelerator-for-the-se-30.48307/page-3 so you may want to ask there.
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