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ram help please!!!!!!!!!!!

Posted on 1998-11-06
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Last Modified: 2010-04-27
I just added 16meg of ram I had 64meg .this is the problem
when i boot up it tests 80meg the device manager see's the 80meg but when I use mem it says 64meg xms and 16meg ems.
now total in mem is 66,122k (xms), but free in mem is 81,226k(xms)
total expanded (ems)64meg
free expanded (ems)16meg
why is this ?im running win95 os2b please help I need this ram to be working .
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Question by:tumnus100
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by:gward28
ID: 1128467
are you useing the /p /c   when your useing mem?
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joopv earned 50 total points
ID: 1128468
Your system is fine, if device manager sees 80M there is no need to worry.

The mem command is a dos command and does not know anything about more than 64 M.

If you want to know why mem gives this strange values you will have to dig in the history of XT and AT computers (8088 and 80286 processors).

in the famous 640k barrier (640K ought to be enough for anybody, Bill Gates 1981), in memory bank switching (Expanded memory), the very useful A20 bug from the 80286 (high memory / hma) etc etc.  I'm sure a lot of web pages will explain these ancient relics in full detail.

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by:joopv
ID: 1128469
I just found a nice article about the DOS memory specifications at :
http://www.pcguide.com/ref/ram/logic-c.html
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by:tumnus100
ID: 1128470
thank you !
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