Re: loopback tests fail

Thanks for the reply. I've been troubleshooting it for awhile and was hoping there may be a simple answer as to why the loopback tests failed instead of going through the details. Such as the failure is usually due to the fx board for example.
I'm running OS 8.1, Media Composer 7.2v. The system had been running perfect for 4 years now. We had a power failure a few weeks ago though and the system didn't turn on, so I replaced the power supply. It came on but the drives weren't there. After troubleshooting with cables, i finally replaced the scsi card and could see all the drives. Opened Media Composer and everything is there but there's an error saying sfcons_video_timeout. I can't seem to find the reason for that error so i'm troubleshooting each card, cable or whatever. Ran the diagnostics and got a 'fail' on all loopback tests. so I replace the motherboard and ribbon cable since not just one card failed, but that didn't seem to be the problem. I'm looking to replace the fx boardset but thought i'd ask if there was a simple answer to the loopback failure. Plus, I have 6 drives daisy-chained and the 2 terminators are still an amber color when everything is on, but I can see all the drives and everything still on them. So I figure the loopback failure is causing the terminators to stay amber so I need to find out which piece of hardware got shorted. Plus it's hard to find the pieces I need without spending too much for the whole thing which we don't need. And all I could find in the Knowledge Base was to unseat it, if that doesn't work replace it.
We have an in-house engineer and is going to do a voltage test on all the hardware before I buy more stuff I don't need. Unless someone has had a similar problem.

Sorry for the winded explanation. Just letting you know the problems if it helps.

Thanks!