david@ms.uky.edu (David Herron -- Resident E-mail Hack) (12/01/87)
I have a 2meg 67meg 3b1 which I expanded with a combo board that
has 1.5 meg memory on it. I'm sorta planning on getting two more
rs232 ports and am curious if getting another combo board will
let me get to 4 megs of memory total? There's a chart in the
combo board manual which shows different ways of getting to
different memory sizes. For 4 megs of memory, the only way
it shows is 2 megs on the motherboard and the 2 meg memory board.
On the other hand, for smaller memory sizes you can mix-n-match
combo boards ...
I would expect to be able to have 2 combo boards, 1 with 1.5 meg
and the other with .5 meg, and have the machine recognize 4 megs
total memory.
Does anybody know if that will work tho'?
--
<---- David Herron -- The E-Mail guy <david@ms.uky.edu>
<---- or: {rutgers,uunet,cbosgd}!ukma!david, david@UKMA.BITNET
<----
<---- Classic beer bellies aren't born! They're made!dbw@mtunk.ATT.COM (d.b.wood) (12/02/87)
According to my informed sources, the kernel can handle only one "hole" in physical memory (the one between motherboard and combo memory arrays). Additional memory arrays are silently ignored. Too bad.
spear@ihop3.UUCP (12/04/87)
> Xref: ihop3 comp.sys.att:27 unix-pc.general:1218 > > According to my informed sources, the kernel can handle only one > "hole" in physical memory (the one between motherboard and combo > memory arrays). Additional memory arrays are silently ignored. I use to have a combo board with 1 meg on it and 512 ram board both installed, and all the memory was recognized (512 on motherboard + 512 + 1 meg = 2 meg total). I eventually fully populated the combo board with 1.5 meg. At that point the PC still only recognized 2 meg even with my 512 ram board, so I gave the ram board to someone else. I don't pretend to understand the memory expansion, but that was my experience with it. -- Steve Spearman {ihnp4,ethos}!ihop3!spear Voice: (312) 979-4181