[comp.sys.att] Unix PC upgrade

dave@arnold.UUCP (06/17/87)

I own a 7300 :-).  Stuck, however, with the .5meg RAM, 10meg. configuration
:-(  .

*** FLAME ON ***

First AT&T sells the machine for $6500, and it bombs.  They say, gee, why isn't
this machine selling?  You overpriced, undersold them!!!!!!!  AT&T could learn
a few lessons from companies like DEC and SUN (although DEC's liscencing
policies are mixed up, but they listen to their users).
Then 2 years later, AT&T burns all the buyers of the machine, dumping 'em
for $1200 (some report getting them for $800) as if they were junk!
I have even heard some owners on the net claim they are going to throw them
away.  Don't throw it away!  This system is not junk!!!!!!!!

*** FLAME OFF ***

Due to AT&T's pricing policies, I am caught in a dilemma.
Two problems.  1) Slow performance.  2) Out of disk space.
Probably (as I see it), the most cost effective thing I can do to solve the
above problems, is buy a lightning fast high capacity disk drive.  Can anybody
share their experience of replacing the slow (>= 85ms) 10meg hard disk with a
faster (>= 30ms) disk drive?  Did you notice a considerable increase in overall
system performance?  My thinking is, if I install a faster drive, I can get by
without buying more memory, until the prices come down to reality.

*** FLAME ON ***

$900 for .5 meg, how absurd!

*** FLAME OFF ***

All I need is any drive with a ST506 interface, and, because of space,
power supply, and disk controller requirements, I am limited to half height
drives with no more the 8 heads.
Or..., I can get a full height drive with it's own enclosure and power supply,
and have ribbon cable squeeze through a crack somewhere, and do loop de loops
around my desk.

I am looking for a drive with >= 40meg, and in the $500 price range.
So far, I have found two drives meeting these requirements in half height form.

One, the ST251 from seagate, has an access time of 40ms, uses a stepper
motor, and priced @ $650.  The other, the HH-1050 from Microscience, 
has an access time of 28ms, uses a linear voice coil, priced @ $800.
Does anybody have any experience with the Microscience drive?
Are they reliable?  Anybody have experience with Microscience in general?
It appears that the Microscience drive is superior, but I'm a little wary of
them.  Anybody know of any other alternatives?  Anybody know of any third
party vendors?  I know of Alloy computer products (Framingham, MA), they
make the DOS co-processor board, and have a 2meg RAM board ($1495).
Somebody mentioned Amperfax, somebody please mail me the address and tele#
of Amperfax.
Anybody know any info on SCSI controllers for the UNIXpc?

Any information you have would be much appreciated.

Dave Arnold

UUCP:	seismo!uunet!arnold!dave

dave@safari.UUCP (dave munroe) (06/19/87)

> Don't throw it away!  This system is not junk!!!!!!!!

> system performance?  My thinking is, if I install a faster drive, I can get by
> without buying more memory, until the prices come down to reality.
 
> $900 for .5 meg, how absurd!

Amperfax will sell you a 2MB expansion board for around that price, they also
do other nice Unix PC upgrades.  Their address is:

		Amperfax Corp.
		1928 NE 154th Street
		North Miami Beach, Fl  33162
		(305) 944-1477

Other people including myself have done business with them and are very
satisfied; I would recommend calling them.  
 
As for disk drives (and Amperfax has a 40MB drive for the 7300, too), one
favorite is the 67 MB Micropolis 1325.  It has a 28msec average seek time
compared to ~65msec on the 20MB Miniscribe (which is very noisy too).
The Micropolis is full height, so it's usually placed outside the cabinet
and needs it's own power supply.
						-dave