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Article #19788

HELP: Size of memory chips

#19788
From: Dinh-Yen Tran
Date: Mon, 11 Jan 1993 06:22
24 lines
1297 bytes
Hi:
	I want to upgrade my 386dx/25 's memory from 4M to 8M.  I am having
 trouble determining what kind of memory chips I have.   The following appears
 on the chips:

		KM41C1000AP-7
		    972 Korea

I know that the -7 indicates that the chip is 70ns (right?).  Could someone
 tell me what the capacity of the chip, and possibly the make, is?  My guess 
is that the chips are 128K since 36 of these little devils make up a 4M bank 
(128Kx32 = 4M).  Also, I spotted the following on the memory chips of my
SpeedStar 24X with 1M:
		
		KM44C256CP-6
	            217 Korea

which are apparently of the same make.  Does the '256' indicates that the 
chips are 256K?  If they are, and since there are 8 of them, wouldn't 
8x256K = 2M (w/o parity) instead of 1M?  Please enlighten me on this.  I 
appreciate any information or suggestion.
dinh-yen
dinhyen@redrock.nevada.edu
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Message-ID: <1993Jan11.062219.3077@nevada.edu>
Path: arc1-ca.pugleaf.net!sparky!uunet!nevada.edu!dinhyen

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Newsgroups: comp.sys.ibm.pc.hardware
Path: arc1-ca.pugleaf.net!sparky!uunet!nevada.edu!dinhyen
From: dinhyen@nevada.edu (Dinh-Yen Tran)
Subject: HELP: Size of memory chips
Message-ID: <1993Jan11.062219.3077@nevada.edu>
Sender: news@nevada.edu (USENET News System)
Nntp-Posting-Host: redrock.nevada.edu
Organization: University of Nevada, Las Vegas Electrical Engr.
Date: Mon, 11 Jan 1993 06:22:19 GMT
Lines: 24