Path: utzoo!attcan!utgpu!watmath!clyde!att!homxb!rry
From: rry@homxb.ATT.COM (R.YADAVALLI)
Newsgroups: comp.sys.ibm.pc
Subject: A couple of AT&T PC6300 questions
Keywords: Serial mouse, expansion memory
Message-ID: <3001@homxb.ATT.COM>
Date: 16 Feb 89 21:44:43 GMT
Distribution: na
Organization: AT&T BL Holmdel NJ USA
Lines: 22

Hello,

I have a couple of questions about the AT&T PC6300.  First, has any one used 
the RS232 serial mice (e.g., Genius GM+ etc. advertised in Computer Shopper)
on a 6300?  How well do they work in general and in particular with a 6300?
Any model better than the others?  I would appreciate all the information I
can get (both good and bad).

Secondly, I am looking for the least expensive way of upgrading an AT&T PC6300
CPU3 with 256K of memory on the mother board to 640K of memory.  I noticed that
the later versions of the mother board had higher density (256Kb) memory chips.
Except for this the boards were identical.  Is it correct to assume that by 
replacing the existing 64K chips with 256K ones I could expand the memory to
640KB, possibly 1MB?  Any problems to look out for?

I welcome all suggestions, ideas, recommendations, warnings etc.
Please use e-mail if you feel there is not enough interest.
Thanks in advance to all of you for your replies.  

Raghu Yadavalli
AT&T Bell Laboratories,
Holmdel,  New Jersey