Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!uunet!tut.cis.ohio-state.edu!snorkelwacker!spdcc!mirror!rayssd!anomaly!css From: css@anomaly.sbs.com (Christopher S. Shikashio) Newsgroups: comp.sys.cbm Subject: Re: What rams go in a mdl 1700 ram expander? Message-ID: <2538@anomaly.sbs.com> Date: 14 Aug 90 17:00:58 GMT References: <6413@shamu.WV.TEK.COM> Distribution: usa Organization: Small Business Systems, Inc., Esmond, RI 02917 Lines: 13 in article <6413@shamu.WV.TEK.COM>, miker@shamu.WV.TEK.COM (Mike Reiney) says: > > I bought a Commodore model 1700 ram expander for the C128. > Somebody took all the rams out of it. Now I know what "buyer > beware" means. > What type of rams should I plug into it? > I have no documentation at all. How is it enabled? > thanks, miker I think you use a 64k addressing DRAM chips, but you go for a 256 k expansion I am not sure of the chip name for 1700's but the 1764 contians 41256's at 150 ns.. and if you decide to buy 16 of them, you will have a 1750 (but don't forget to cut the 512k jumper on the bottom of the REU brd.. solder side.