Philips XT with 768K

From: jpero_at_pop.cgocable.net <(jpero_at_pop.cgocable.net)>
Date: Mon Aug 17 15:36:52 1998

> Date: Mon, 17 Aug 1998 18:37:21 -0500
> Reply-to: classiccmp_at_u.washington.edu
> From: Russ Blakeman <rhblake_at_bbtel.com>
> To: "Discussion re-collecting of classic computers" <classiccmp_at_u.washington.edu>
> Subject: Re: Philips XT with 768K

> Allison J Parent wrote:
>
> > The ST251 is easily over 12 years and known for spindle problems.
> >
> > It runs real hot. Not a great drive compared the Quantum d540 (31mb)
Snip!

> > really poor drives made it out the door due to design errors or worse
> > poor quality control.

Snip!

> There are billions of working (and cheap) 251 and 251-1 drives out there
> though, hence they get used in these applications more than the lesser
> available Quantums. You're darn right on the heat too!

That, is not the HD heat problems...cooling air was poorly done in
both installation and case design. Old Compaq Deskpro cases have
that in mind. ST225 got real hot too so need to watch that on any
5.25" hds and insure cooling is good.

Many hd deaths have caused by extended hot running time and caused
rapid stickums in ST251 series and ST1xxy series that use stepper
type. This does apply to all hd's as well but many newer hd's are
usually cooler but very recent hd's are getting hotter as platters
count go up and rpm rate goes up.

Those ST251's have rapidly died out around here,
very rare one or two for last few years and most are remade into
clocks. Including: ST277 and ST296 series, same design as ST251
series.

Russ, have you told us what kind of this computer that used
miniscribe 8450XT hd? Many times this can be bypassed if this
machine use slots. Also you don't have to use exact replacement,
8051A can do that too as it has jumper for XT mode, ditto to ST351a/x
drives.

Jason D.
email: jpero_at_cgocable.net
Pero, Jason D.
Received on Mon Aug 17 1998 - 15:36:52 BST

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