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- Newsgroups: comp.sys.att
- Path: sparky!uunet!cis.ohio-state.edu!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!Firewall!admips2!kstox
- From: kstox@admips2.Berkeley.EDU (Ken Stox)
- Subject: Re: Adding 2nd 360K floppy to an AT&T 6300
- Message-ID: <1992Dec28.203932.15988@Firewall.Nielsen.Com>
- Sender: news@Firewall.Nielsen.Com (Usenet News)
- Nntp-Posting-Host: admips2.naitc.com
- Reply-To: kstox@admips2.Berkeley.EDU (Ken Stox)
- Organization: AC Nielsen Co.
- References: <101314@netnews.upenn.edu> <1992Dec19.000156.14000@chg.mcd.mot.com> <1992Dec24.223819.11987@cbnewsl.cb.att.com> <1hnh3jINNbm4@shelley.u.washington.edu>
- Distribution: usa
- Date: Mon, 28 Dec 92 20:39:32 GMT
- Lines: 36
-
- In article <1hnh3jINNbm4@shelley.u.washington.edu>, pollock@milton.u.washington.edu (Joe Pollock) writes:
- |> I haven't seen anyone mention the dip switches that need to be changed when
- |> a second floppy is added.
- |>
- |> Dip Switch 1, located on the mother board:
- |>
- |> SW7 on, SW8 on - one floppy drive
- |> SW7 off, SW8 on - two floppy drives
- |>
- |> In addition, SW1 selects the floppy drive type
- |> on = 48tpi (360K)
- |> off = 96tpi (720K)
- |> \
- |> SW2 selects start-up speed for the drive. on = slow, off = fast
- |> start-up.
- |>
- |> According to the service manual, floppy drives should be configured
- |> as drive 2 (assuming 1-4, not 0-3, select jumpers). In addition,
- |> the drive should be configured for head loading controlled by the
- |> "motor on" signal. The LED should come on with "drive select."
- |>
- |> hope this helps.
- |>
- |> joe
-
- If memory serves correct, This was documented, but was not correct. Later
- versions of the firmware used the switches differently. Sorry that I can't
- rememeber the details, but it has been 6 years since I owned one of these
- babies.
-
- --
- ===============================================================================
- Ken Stox Consultant to A.C. Nielsen kstox@naitc.com
-
- #include <std_disclaimer.h>
- ===============================================================================
-