2 Apr
2006
2 Apr
'06
11:21 a.m.
Vassilis Prevelakis wrote:
Hi,
I have an HP9000/345
I believe that there is some config problem (perhaps some jumpers
need to be changed?). Anybody has any suggestions?
Thanks
HP was a big fan of High voltage scsi. when you connect a single ended
device to a scsi bus, you should short out all the drivers, maybe explaining
the bad scsi report you get.
I would try to find the drivers nearest the cabling and see if they can be
determined to be single ended, or if they are the high voltage drivers. A
lot of the high voltage driver systems had a big array of dips that
converted
the high voltage signals to the internal voltage, and are quite evident when
you look at the board. A lot of scsi designs also have a big array of
empty spots that are unpopulated that are on single ended controllers,
which were put in for possible production as differential.
jim