From: jht9e@faraday.clas.Virginia.EDU (Jason Harvey Titus) Subject: Re: HELP INSTALL RAM ON CENTRIS 610 Organization: University of Virginia Lines: 8 I had asked everyone about problems installing a 4 meg simm and an 8 meg simm in my Centris 610, but the folks at the local Apple store called the folks in Cupertino and found that you can't have simms of different speeds in one machine, even if they are both fast enough - ie - My 80 ns 8 meg and 60ns 4 meg simms were incompatibable... Just thought people might want to know..... Jason.