HP9133D disk replacement.

[jeff.kaneko at juno.com]

Yah, I done that.  The key is to find an MFM drive that has the
same or greater Cylnder/Head geometry: It has to have at least
the same number of cylnders, and at least the same number of
heads.

Keep in mind, though, that geometry alone does *NOT* guarantee
that this will work!!  The 9133 seems to be allergic to some
MFM drives-- I could get most Seagate drives to work, for example,
but not NEC's.  My fave at the time was the Quantum Q540. I
'wasted' over half the drive, but I had alot of them at the time!

When you format such a drive, you will not have a capacity
greater than the original.[1]


[1] Not quite true for the older 9133 V/X/XV drives.  If you have
    a 'V' for example, you can replace it with a bigger drive, adjust
    the jumpers inside, and format for 10 or 15MB.

-- Jos Dreesen / Marian Capel <jos.mar at bluewin.ch> wrote:


Closely related to the previous post : I actually have an ST419, but is in use inside a HP9133D.

Looking back to old classiccmp articles indicate that it is not easy to replace the ST419 by other MFM drives of different geometries.
Has this changed ? i.e can somebody report a success in replacing the internal drive of an HP9133 ?


			Jos

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