CygnusTM
Member
I recently picked up a IIsi. It came with 5MB of RAM (4 1MB SIMMs installed), and I am trying to upgrade to 17MB. I picked up 4 4MB SIMMs on eBay (https://www.ebay.com/itm/224577279767), and the IIsi won't see the SIMMs at all. I've tried reseating it and a PRAM reset. How picky is the IIsi about RAM? My research tells me that the SIMMs I bought should work. I haven't seen anything warning against parity, low profile or 3 chip SIMMs. Thanks.