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From: pwork@blackbird.afit.af.mil (Paul R. Work)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Piggy Back Chips 64k
Summary: They're 150 nsec DRam chips
Keywords: What good are they
Message-ID: <1827@blackbird.afit.af.mil>
Date: 23 Dec 90 23:30:45 GMT
References: <4382@vela.acs.oakland.edu> <1990Dec23.014936.8617@panix.uucp>
Organization: Air Force Institute of Technology; WPAFB, OH
Lines: 19

In article <1990Dec23.014936.8617@panix.uucp> schuster@panix.uucp (Michael Schuster) writes:
>In article <4382@vela.acs.oakland.edu> mebrenna@vela.acs.oakland.edu (Leonardo) writes:
>>We have some ram chips that are piggy backed.  The top one is labeled 
>> M37S64A-15, by OKI, #58080.  How do I use these piggy back chips, or
>>are they possibly only for a certain machine or board.
>
>These sound awfully like the "128K" RAM chips used in the IBM AT
>512K motherboard. Don't know how those chips were marked.
>
Yes, that's right.  They are 150 nsec 128K DRam chips that were used in the
IBM AT class machines (the ATs used 36 of them to give 512K RAM).  I just
checked my true blue IBM AT, and that's exactly the chip that was used.

Profanity is a feeble attampt to express oneself forcibly.

Paul R Work  aka  "The Studebaker Kid"      pwork@blackbird.afit.af.mil

The Air Force takes no responsibility or liability for my personal opinions
I don't take some of them seriously myself!