Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site utastro.UUCP Path: utzoo!watmath!clyde!bonnie!akgua!whuxlm!whuxl!houxm!ihnp4!qantel!dual!mordor!ut-sally!utastro!nather From: nather@utastro.UUCP (Ed Nather) Newsgroups: net.micro.pc Subject: Re: Memory boards (with clock/calendar) Message-ID: <359@utastro.UUCP> Date: Mon, 15-Jul-85 11:48:23 EDT Article-I.D.: utastro.359 Posted: Mon Jul 15 11:48:23 1985 Date-Received: Wed, 17-Jul-85 21:03:03 EDT References: <728@ptsfa.UUCP> <484@qantel.UUCP> Distribution: net Organization: U. Texas, Astronomy, Austin, TX Lines: 23 > I'm looking for a clock/memory board, too. We are the proud (?) owners of three IBM PC portables -- the heavy computer with three (3) long slots, total -- and found an interesting solution to the clock/memory problem that involved no slots at all, long *or* short. Since the portables use the XT motherboard, we were able to replace two rows of 64K chips with 256K chips on the motherboard, thus getting 640K. We also added a "dClock" card that contains the standard battery-powered clock/ calendar, but sits on the motherboard by plugging into the 8088 socket. (It has a socket for the displaced 8088 directly above). The memory modification involves adding one small jumper to the board, and was described in this newgroup about a month ago. The "dClock" is sold by Microsync, Inc., P.O. Box 116302, Carrollton, TX 75011, for $60. The 256K chips cost us $90 per portable, and they're less now. More details on request. -- Ed Nather Astronomy Dept, U of Texas @ Austin {allegra,ihnp4}!{noao,ut-sally}!utastro!nather nather%utastro.UTEXAS@ut-sally.ARPA