Lyle Bickley wrote:
  On Monday 29 September 2008, John S wrote:
  Can anyone advise what to try, or a list of what
the LED numbers
 mean? Should for example the external SCSI connector have a
 terminator? 
 See the above. I've been able to get just about every RS/6000 I've
 obtained working. IBM Hardware and Software produces lots (perhaps
 way too much) debugging information ;-) 
   Two things that are probably farther down the road than you're getting:
   A DEC 3W-BNC video cable is wired opposite IBM's - if it's DEC or DEC
compatible, red will go to blue and vice versa.
   Second, when you get the OS to boot, it's likely to stop at LED code
581 for a very long time.  It's looking for a nameserver.  That'll
eventually time out, but it takes long enough that folks often thing
it's hung.
   If you can tell us what the code is where it stops, that would go a
long way toward finding your problem.
        Doc