Still use my 650 with Photoshop4.0 and plan to keep using it. Would like to get the max memory stick that it will use! Would appreciate any suggestions. Thanks

[Allah]

Well the Apple spec says 32mb chips are the largest and 136mb the max.

But that all that means is Apple didn't test it with a bigger chip. A larger may work but it is unsupported.

So if you get a 64mb chip it may or may not work but some machines do run with bigger ram chips than Apple says.

Agree the large SIMM sticks were Not available when Apple put out that info. Hoped that some die hard 680 would have tried some larger mem sticks to see what the Real Max is?