[comp.sys.ibm.pc.hardware] Zeinth Z-148 Hard Disk Upgrade...Suggestions Wanted

marocchi@motcid.UUCP (Jim Marocchi) (10/22/90)

I am working with someone that is attempting to upgrade a Zeinth Z-148 to 
accomodate a hard drive (and controller). This person has have come across 
a hard drive and controller and wish to equip the machine to accept it. 
Currently, the Z148 is configured for floppy drives only. The system does 
not have I/O connectors for expansion. I am willing to bet that I can pull 
some I/O off of the ribbon cable that connects the CPU board with the I/O 
board for use by the hard drive controller. Has anyone upgraded their Z148 
to use a hard disk drive? I also would need some info as to what interrupt 
& address(es) to setup for the HD controller. Would there be any change to 
the ROM BIOS to make the drive work? Is this worth the time? We would 
dislike having to upgrade to a different machine just to make use of the 
hard drive & controller. Any pointers? Thanx.
-- 
-- Jim Marocchi -- Motorola, Inc., Cellular Infrastructure Division --
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davem@nro.cs.athabascau.ca (10/25/90)

marocchi@motcid.UUCP (Jim Marocchi) writes:

> I am working with someone that is attempting to upgrade a Zeinth Z-148 to 
> accomodate a hard drive (and controller). This person has have come across 
> a hard drive and controller and wish to equip the machine to accept it. 
> Currently, the Z148 is configured for floppy drives only. The system does 
> not have I/O connectors for expansion. I am willing to bet that I can pull 
> some I/O off of the ribbon cable that connects the CPU board with the I/O 
> board for use by the hard drive controller. Has anyone upgraded their Z148 
> to use a hard disk drive? I also would need some info as to what interrupt 
> & address(es) to setup for the HD controller. Would there be any change to 
> the ROM BIOS to make the drive work? Is this worth the time? We would 
> dislike having to upgrade to a different machine just to make use of the 
> hard drive & controller. Any pointers? Thanx.

  A company called Payload Computer Services in Houston *used* to offer
an expansion card for this unit which provided two slots and a real time 
clock.  Asking price was $149 (the ad's from a 1987 issue of Sextant.
  Payload's Phone number is 713/486-0687.  
  I doubt you would need to upgrade the BIOS.  Once that's in, it shud be 
just like any other hard drive installation (XT's use interrupt 5 for
winnies).
  I've installed a similar product for the purpose of adding network 
cards to these units; it was a fairly straightforward operation.


Dave McCrady                     |  ersys!davem@nro.cs.athabascau.ca
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