I have a problem that I think you guys can explain to me.
I have a Tekram DC390F SCSI adapter. To that I have attached an IBM Ultrastar 2ES and a Yamaha CD-RW. I can´t seem to get these two devices to work well together. One drive at the time is no problem, but when I have connected both of them and tries to start the CD-R program the computer hangs hard. The same happens when I tries to open "My computer". The harddrive is attached to the 68 pin port, and the CD-R to the 50 pin port. I have learnt, and also read in the manual, that if you connect like this, you are to terminate both ends of the SCSI channel. So I terminate both the harddrive, and the CD-R as described in their manuals. And still the problem presists. Now.. When I tried installing the CD-R in an friends external case, and used an Active terminator on it, everything worked like it should. Why is this? Is not the standard termination built into the CD-R enough? I am confused here. The 50 pin bus is only 8 bits wide, but the 68 pin bus is 16 bits wide. Has this something to do with it. And how do I arrange my devices so that I have two "wide" devices in the ends of the chain, when I only have a "wide" and a "narrow" device.
I hope you understand my strange question, and perhaps has an answer to it!
Thanks
Vertical
I have a Tekram DC390F SCSI adapter. To that I have attached an IBM Ultrastar 2ES and a Yamaha CD-RW. I can´t seem to get these two devices to work well together. One drive at the time is no problem, but when I have connected both of them and tries to start the CD-R program the computer hangs hard. The same happens when I tries to open "My computer". The harddrive is attached to the 68 pin port, and the CD-R to the 50 pin port. I have learnt, and also read in the manual, that if you connect like this, you are to terminate both ends of the SCSI channel. So I terminate both the harddrive, and the CD-R as described in their manuals. And still the problem presists. Now.. When I tried installing the CD-R in an friends external case, and used an Active terminator on it, everything worked like it should. Why is this? Is not the standard termination built into the CD-R enough? I am confused here. The 50 pin bus is only 8 bits wide, but the 68 pin bus is 16 bits wide. Has this something to do with it. And how do I arrange my devices so that I have two "wide" devices in the ends of the chain, when I only have a "wide" and a "narrow" device.
I hope you understand my strange question, and perhaps has an answer to it!
Thanks
Vertical
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