QPS Que!, Owner'S Manual

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Reason 4 Bad SCSI cabling. It is recommended that you always use high-
quality “premium” SCSI cables to eliminate data corruption, parity
errors and other problems. “Premium” can be defined as double-
shielded, layered twisted pair with 25 wire pairs, single-ended
impedance of 80-110 ohms, and molded.
Step 1: Turn off the power to your PC and all peripherals.
Step 2: If possible, verify that all SCSI external cables are “premium” and
remove all non-premium external SCSI cables.
Step 3: If you are unsure of the quality of the cables you are using, disconnect
all cables and peripherals from your system. Use the supplied cable
to attach the CD-R Drive and power on all peripherals and then your PC.
Step 4: If everything boots up fine, power off the PC and all peripherals,
and begin attaching another cable and peripheral to your system.
Step 5: Repeat Step 4 until you have a problem. When a problem exists,
try using a different SCSI cable and repeat Steps 4 and 5 until you
can rule out all possible bad cables by the process of elimination.
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Questions