Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!cs.utexas.edu!uunet!aecom!werner
From: werner@aecom.yu.edu (Craig Werner)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Mystery disk controller query
Message-ID: <2969@aecom.yu.edu>
Date: 23 Aug 90 02:58:19 GMT
Distribution: usa
Organization: Albert Einstein Coll. of Med., NY
Lines: 26


	A friend with a noname clone and very very hardware manuals is
out of disk space, and we thought that the quickest, cheapest, and
easiest solution was to add a second ST-251-1 drive, boosting her from
40 to 80M.
	Here's the problem. The drive controller manual is one that is
missing. I beleive that the controller is Western Digital. The large
writing says WA3-16. The largest chip on the controller, is a square
WD11C00C.
	The controller has four jumper slots. J5 is a wide cable to the
floppies with two plugs, J4 is a wide cable to the hard with two plugs
(one free), J3 is a narrow cable to the hard drive with a single plug, 
and J2 is free, but looks like it would take a cable the size of J3.
	
	What I'd like to know is what is the function of the cable at J3?
Why is it 1:1 unlike the wide cables at J5 and J4? What goes at J2?

(Obviously the real question here is whether buying a bare drive is 
sufficent or whether an extra cable needs to be ordered.)


-- 
	        Craig Werner   (future MD/PhD, 5.5 years down, 2.5 to go)
	     werner@aecom.YU.EDU -- Albert Einstein College of Medicine
              (1935-14E Eastchester Rd., Bronx NY 10461, 212-931-2517)
              "Coke is much more socially acceptable than self-mutilation."