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Author Topic: CS060MK2 SCSI kit does not seem to work. Help, pleaze!  (Read 2338 times)

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Offline da9000

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Re: CS060MK2 SCSI kit does not seem to work. Help, pleaze!
« on: January 15, 2008, 07:03:05 PM »
Quote

ksk wrote:
the termination "power jumper" (or whatever) was on for the external bus.


The above is an indication that there is no termination, or termination is wrong. The "termination power" jumper, just tells a board from where it will get juice (current, electricity) to apply to the terminators.

"Terminators are powered from the "term power" line on the SCSI bus. Term power can come from any device on the bus, and is provided by either the host, a drive on the bus, the backplane, or any combination thereof."

The excerpt is from:
http://www.scsita.org/aboutscsi/SCSI_Termination_Tutorial.html



Quote

ksk wrote:
The internal drive that was connected was very old Fujitsu ... I need to search for data/manual sheets for that. The termination in that drive was not clear... The drive just worked at the end of SCSI cable at my friends place.


Improperly terminated devices WILL STILL WORK in certain buses/controllers/setups, but not for long. They will cause corruption and other problems. So the fact that it worked at some other place means nothing, UNLESS it worked on the CSMK2 SCSI module at the other place.

Search on google, you'll find even old drive specs. If you have problems, still, post the model# and someone here can probably help.



Now, having said all of the above, it does not mean that improper termination would cause the black screen. But as I've never had a CS card, I can't say from experience. Your mileage may vary. The best thing to do is make sure termination is correct, then you narrow down your problem space.

Good luck!


EDIT:
I recommend you use terminating power from drive, not bus/host adapter, and the reason is that the last choice will only place more current demand on the adapter card, while the drive has a direct power line to the PSU.