Path: utzoo!attcan!uunet!lll-winken!lll-tis!ames!killer!tness7!tness1!nuchat!sugar!karl From: karl@sugar.UUCP (Karl Lehenbauer) Newsgroups: comp.unix.microport Subject: Re: $#%&%%$ 286 Dos Merge Summary: 1 meg motherboard = 640K base + 384K extended Keywords: Any clues Message-ID: <2208@sugar.UUCP> Date: 28 Jun 88 11:31:01 GMT References: <1893@qetzal.UUCP> <250@obie.UUCP> Organization: Sugar Land UNIX - Houston, TX Lines: 13 In article <1893@qetzal.UUCP>, rcw@qetzal.UUCP (Robert C. White) writes: > The only thing I noticed that was wierd about this machine is that > I had to put exactly 640k of 120-ns ram chips on the motherboard. > There are 512k of 256k drams and 128k of 64k drams. All chips are > rated at 120ns. When I tried to put 1 megabyte on the motherboard, > all kinds of memory errors would result. Remember that memory from 640K to 1 MB on the XT/AT is reserved for I/O. If your motherboard accomodates 1 MB, it does so as 0-640K and 1MB-1.384MB, so if you have extended memory (whatever they call it - it's the stuff that's directly addressed, not paged a la Lotus/Intel), set it to begin at 1 MB plus 384K. -- -- uunet!sugar!karl