Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!udel!rochester!pt.cs.cmu.edu!o.gp.cs.cmu.edu!andrew.cmu.edu!es1o+ From: es1o+@andrew.cmu.edu (Eric Mitchell Snider) Newsgroups: comp.sys.mac.hardware Subject: SIMMs for IIsi - what do I need? Message-ID: Date: 12 Dec 90 22:17:48 GMT Organization: Carnegie Mellon, Pittsburgh, PA Lines: 14 I just bought a IIsi 40/2. I had the 1 meg of 256K SIMMs from the si put into my Plus. I want to put my 4 megs of RAM from my Plus into the IIsi. The memory from the Plus consists of two 70ns 1 meg SIMMs and two 100ns 1 meg SIMMs. Is there any problem with doing this? MacWorld says "The machine requires 100 nanosecond RAM chips, but Apple is providing 80ns ones. Thus users who have the IIsi and IIci can swap SIMMs between the two." So 100ns should be fast enough but is it ok to mix 2 70ns and 2 100ns? The technician that was swapping the memory wrote on the work order "100ns do not work in SI's." Eric Snider es1o@andrew.cmu.edu