----- Original Message ----
> From: Elliott Price <[email protected]>
>
> I could never keep that straight; I just move some/add some and
> usually it would work. lol.
> >
> > Warning:
> >
> > "first" and "third" can be confusing. The jumper pins are binary
> > representing values 1,2, and 4. They may be labelled A1, A2, and A4
> > or A0, A1, and A2 depending on what the circuit board designer had
> > for lunch. The first and third in that sense would result in SCSI
> > identifier 5.
> >
It's not too confusing :)
But it would be very helpful if we knew what make and model of the drive.
If it is a SCSI I drive commonly used in vintage Mac's there are six pins,
three jumper positions.
As Doug said the setting are binary.
no jumper ID 0
jumper on lowest numbered pins = ID 1
jumper on second numbered pins = ID 2
two jumpers on first and second = ID 3
jumper on third = ID 4
jumpers on first and third = ID 5
jumpers on second and third = ID 6
jumpers on all three = ID 7 (do not use this setting)
If you have a SCSI II drive there are 4 ID pins and the setting for higher ID
number follow the same rules.
It should be relatively easy to find the manual and/or jumper setting for the
drive with a google search. And that really makes the whole thing even easiler.
HTH, --glen
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