Actually the TurboSparc based 3TX and 3000ST supported 256MB via undocumented factory upgrade... not sure how they did it exactly but it was official. Might ha

Actually the TurboSparc based 3TX and 3000ST supported 256MB via undocumented factory upgrade... not sure how they did it exactly but it was official. Might have been something as crazy as installing ram with a custom address line soldered on etc... The 3GX from 1994 also supported 128MB but the simms had to be low profile and fast enough... so a bit hard to source.