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sbjaerum · #15 (**permalink**) 08-30-2008, 06:35 PM

I did some more testing before returning the unit.

I used KC2 for a while, powering the disk from the PC power supply. It seems to work reliable when the disk is powered this way. Did some file copy tests with CRC checking, and I never got a failure.

I also tried to replace the original power brick with a universal one that I have. I configured the power supply to 12/5A, and plugged it into KC2. I got the exact same problem with my disk as with the original power supply.

There is a regulator inside KC2 producing 5V out to the Molex connector from the external 12V supply. I suspect there is a problem here in that my KC2 cannot supply enough current on the 5V line when it is loaded with my disk. The disk is rated 5V/0.75A and 12V/0.9A.

My KC2 will now be returned. Not sure if I will try a second one...

#15 (permalink) 08-30-2008, 06:35 PM
sbjaerum Junior Member Join Date: Aug 2008 Posts: 10	I did some more testing before returning the unit. I used KC2 for a while, powering the disk from the PC power supply. It seems to work reliable when the disk is powered this way. Did some file copy tests with CRC checking, and I never got a failure. I also tried to replace the original power brick with a universal one that I have. I configured the power supply to 12/5A, and plugged it into KC2. I got the exact same problem with my disk as with the original power supply. There is a regulator inside KC2 producing 5V out to the Molex connector from the external 12V supply. I suspect there is a problem here in that my KC2 cannot supply enough current on the 5V line when it is loaded with my disk. The disk is rated 5V/0.75A and 12V/0.9A. My KC2 will now be returned. Not sure if I will try a second one...