One SIMM I checked has mcm514256 x8 on one side which seems to be 4 bit x 256Kb? Or 1MB total. Might explain why my C610 never worked with it, it's either meant for really early 32 bit computers or printer? Another SIMM has 4x hyb5117800asj which is 8 bit x 2Mbit or 8MB total which my C610 detected correctly.
Reading chip number is hard even with magnifying glass. Finding answer with Google is much harder because the first 50 or so hits are often by Chinese chip sellers who are offering chips by the part number but not identify what it is, or have the datasheet. It's like these Chinese sellers are farming chips number and are hoping someone would stumble on them looking to buy chips. Some of the hits also leads to datasheet sites who claims to have it and won't let me read it unless I buy them. No guarantee it'd be the right one or even one that's not a fake.
Reading chip number is hard even with magnifying glass. Finding answer with Google is much harder because the first 50 or so hits are often by Chinese chip sellers who are offering chips by the part number but not identify what it is, or have the datasheet. It's like these Chinese sellers are farming chips number and are hoping someone would stumble on them looking to buy chips. Some of the hits also leads to datasheet sites who claims to have it and won't let me read it unless I buy them. No guarantee it'd be the right one or even one that's not a fake.