Sonnet L2 Cache Card 300/512k - upgrade cache to 1m?

Hey gang, I just won the above upgrade card on eBay for my pimptastic 5500, and I was wondering if I could upgrade the cache by adding the missing chips to the board, or if there’s a ROM or similar on the board that will prevent this.

Also, could someone upload a pic of the backside of one of these cards with a fully populated cache(and if you’re super generous the front side under the heat sink) so I can find out which chips I need?


P.S. I know I have 3 threads up on this subforum now. I’m trying to keep my main question topics separated so people of the future (probably me when I get old and forget let’s be real) can find them on Google.
 
sorry for being so late, just saw this post recommended to me. yes you can absolutely upgrade the L2 cache on these to 1MB, i've done it myself. just get yourself 2 128Kx36 chips like on G4 CPU cards and solder those on.
 
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