Help PC1

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5 total messages Started by gerard1 Fri, 26 Sep 1986 17:42

#8033

Author: gerard1
Date: Fri, 26 Sep 1986 17:42

31 lines
2028 bytes

        HELP !!!!!

           A friend of mine has recently aquired a vintage IBM PC (circa. 1981)
that was one of the last of the PC1 based systems.( i.e. 16k-64k memory on the
motherboard ... 4 x 9 x 4116's ) At the time of purchase the machine came with
512k of memory,64k of 4116's on the mother of a board and the remainder on plug
in cards. Figuring he has the basis of a good home machine for text processing
e-mail etc., last week he went and bought a PLUS DEV. Hardcard 20.(nice move!)

                LO and BEHOLD when installed in machine no go..........

            The most obvious reason for the machine to freeze would be the old
version of BIOS that is is in the machine. I suggested that he look into 
getting this upgraded to a newer version that supports a hard disk. SO, he did 
just that and the system still locks up. Has anyone seen this problem and 
know of a fix ? Is the problem based on the PC1 motherboard ? 

            Another point of interest is, can the PC1 motherboard be modified
to use 4164 mem. chips? Is this a relatively simple/complex task ? 

            Any information/experiences on either of these queries would 
be greatly appreciated .
                                                     THANX in advance 
                                                     Gerard Hynes

.......the least we can do is wave to each other.
                               John Minton

Re: Help PC1

#8066

Author: mjb224
Date: Sun, 28 Sep 1986 19:17

5 lines
835 bytes

My experience with the Plus Hardcard has been that I must have PC-DOS 3.1
to run.  I am unfamiliar with the technical aspects of vintage pcs so I cannot
say that the DOS fix will take care of the problem.  If you do get it running
though, they are very nice devices.

Re: Help PC1

#8088

Author: forbus
Date: Mon, 29 Sep 1986 12:34

10 lines
1095 bytes

I've just had a PLUS 20MB hardcard installed in my COMPAQ PLUS, and I'm
still running Dos 2.11 with no problems.  So the previous posting is in
error, you do NOT need Dos 3.XX.  It seems a priori likely that Dos 1.XX
wouldn't work, though.

The Hardcard really is terrific (after several weeks of use).  The menu
software they give you with it is junk, but there are useful programs for
producing clicks or a small "+" to indicate when the disk is on (it's
internal, so otherwise, how can you tell?).  Seems fast enough, too.

Re: Help PC1

#8089

Author: berger
Date: Mon, 29 Sep 1986 22:39

4 lines
679 bytes

You can get a BIOS ROM upgrade from an IBM dealer for about
$ 40 if you have the old style PC-1.  That will allow you to
use the hard disk.

Re: Help PC1

#8190

Author: brown
Date: Wed, 08 Oct 1986 02:19

19 lines
1218 bytes

In article <10800030@uiucdcsp> forbus@uiucdcsp.cs.uiuc.edu writes:
>
>I've just had a PLUS 20MB hardcard installed in my COMPAQ PLUS, and I'm
>still running Dos 2.11 with no problems.  So the previous posting is in
>error, you do NOT need Dos 3.XX.  It seems a priori likely that Dos 1.XX
>wouldn't work, though.

You are correct, you can work with DOS 2.11, but DOS 3.xx will give you
2k cluster sizes instead of 8k cluster sizes.  That is a real nice savings
of space.

BTW, if you formated with DOS 2.11, you will need to redo everything with
DOS 3.xx to get 2k clusters.
-- 
		  ihnp4------\
		harvard-\     \
Mr. Video	   seismo!uwvax!nicmad!brown
		  topaz-/     /
		 decvax------/

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