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From: jec@nesac2.att.com (John Carter ATLN SADM)
Newsgroups: comp.sys.att
Subject: Re: AT&T 6300 Floppy Drives
Summary: is the check program correct?
Keywords: 6300, Floppy drive
Message-ID: <1516@nesac2.att.com>
Date: 19 Mar 89 05:10:15 GMT
References: <1229@wpi.wpi.edu> <2599@cuuxb.ATT.COM>
Organization: A.T.&T. Lisle, Ill.
Lines: 25

In article <2599@cuuxb.ATT.COM>, fmcgee@cuuxb.ATT.COM (~XT6510300~Frank McGee~C23~M24~6326~) writes:
> In article <1229@wpi.wpi.edu> mhampson@wpi.wpi.edu (Mark A. Hampson) writes:
] ]Does anyone have a solid explaination as to why the floppy drives of the
] ]AT&T 6300 spin slowly?  I have a large number of these machines that I 
] [.........]
] ]I borrowed a program called RediScope which uses the Dysan Digital Test

Does the program compensate for machine speed differences between
the 'Big Blue' standard system clock and the faster clock in the 6300 and/or
for the differences in the 8088 vs 8086 chips?

] ]Diskette and can check disk speed, alignment etc.  Every one of the drives
] ]reported slow. (292 RPM instead of the normal 300+/-5 RPM).  I was told by
] [........]
] ]hole in it considering that the drives are built by toshiba and are printed
] ]with markings for 300 RPM at 12VDC.  (Not AC 50 Hz here)
] 
] These two points would seem to contradict each other.  The drive is not
] modified by AT&T in any way, and Toshiba says they should be spinning at
] 300 RPM.  I used to support over 300 6300's and never saw problems moving
] disks between 6300's, IBM PC's, IBM AT's, Zenith clones, Radio Shack
-- 
USnail: John Carter, AT&T, 401 W. Peachtree, FLOC 2932-6, Atlanta GA 30308
Video:	...att!nesac2!jec    Voice: 404+581-6239
The machine belongs to the company.  The opinions are mine.