In a message jason zwiefel <[EMAIL PROTECTED]> writes:

<<...Got another one for you.  I ebay'd a couple of IBM DFHS s4f 4gig HDs and 
have been having a problem with getting them to stay mounted, even with FWBs 
HDtoolkit.  It will fire up for a while and then start to spin down and start 
up repeatedly.  I have it on the SCSI 1 as an external drive and have tried 
seting the IDs from 0 to 4, but I think I don't have the jumpers set right.  I 
have two other HDs on the internal scsi bus(7300/180) set to ID 0 and 1, cdrom 
set to 3.  How do I know if the termination is

correct?  Maybe I need a refresher on how the jumpers should be set >>

According to the Quick installation guide for various DCHS drives --I have 
one in 7300/200.

"For attachment to Macintosh, place jumpers on pins 29 & 30 to disable unit 
attention and pins 11 &12 for auto start. . . . .

[If at the ends of the SCSI chain] enable active termination by placing a 
jumper across pins 13 and 14.

What this means looking at the "Option Jumper Block" that has your SCSI ID's 
on the LEFT, count over six rows just past the row with only one pin those are 
pins 11 & 12 for auto start. Active termination is the next set of pins to 
the right (13 &14)

Pins 29 & 30 "unit attention" are the second row from the RIGHT side the 
jumper block.

The old IBM link to this guide was
http://www.ibm.com/harddrive

Selecting it will give you another link to follow. I haven't tried that link. 
Too bad drive info is getting more difficult to find.

--glen (digest mode)




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