Path: utzoo!attcan!uunet!snorkelwacker!tut.cis.ohio-state.edu!cs.utexas.edu!oakhill!abair From: abair@turbinia.sps.mot.com (Alan Bair) Newsgroups: comp.sys.amiga.hardware Subject: Re: Probs adding RAM to A3000 Message-ID: Date: 14 Jul 90 17:29:18 GMT References: <10870001@hpfcso.HP.COM> <10870002@hpfcso.HP.COM> Sender: news@oakhill.UUCP Organization: SPS CAD, Motorola Inc., Austin, Texas. Lines: 22 In-reply-to: cunniff@hpfcso.HP.COM's message of 13 Jul 90 21:12:35 GMT In article <10870002@hpfcso.HP.COM> cunniff@hpfcso.HP.COM (Ross Cunniff) writes: deleted...... Thanks to everybody for all the suggestions. To summarize, if you buy the cheaper page mode DRAMs, you MUST move the DIPs into chip memory. If you by static column mode DRAMs, you can keep the DIPs as fast memory if you want. For all of you who asked why I wanted to do it this way: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ what use is 2MB of chip ram to Lattice C? ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ This is a very good point. To complete all the information that has been posted about mixing static column and page mode RAM, is there any problem with mixing the 1M of fast DIP with EITHER of the 256K or 1M x 4 static column ZIPs? When I upgrade my future 3000, I plan on using the 1M x 4 so I can get the full 16MB on the motherboard. It would seem that mixing a 1M bank of DIP with 4M banks of ZIP could have some potential problems. -- Alan Bair SPS CAD Motorola, Inc. Logic Simulation & Test Austin, Texas abair@turbinia.sps.mot.com