[X4U] Daughter's Hard Drive Carnage Part 2

[David R. Boag, DDS]

Well of course I didn't have the drive hooked up when I tested the  
power supply. FYI, the power supply is external, not internal. I  
wouldn't even know how to test it while it was connected. No I just  
checked the pins as I stated with the power supply plugged in to the  
wall.

Don't know about the other stuff. In your experience, it is more  
likely the supply or the board inside the case? The more I think about  
this, the more I think it's probably the power supply.

Thanks for your thoughts.

DRB

On Oct 21, 2008, at 10:25 PM, Doug McNutt wrote:

> At 21:35 -0400 10/21/08, David R. Boag, DDS wrote:
> Pin 1 = 5VDC, Pin 2 = 12VDC, Pins 3 & 4 are both  ground. Output is  
> supposedly 5V with 4.2A and 12V with 3A. I have  tested the pins  
> with my voltmeter and the volts look right, however, I  can't seem  
> to get any amps when I go from pin 1 or 2 to the ground  pins. 0 A.
>
>
> Huh???  You connected a current meter directly from the +5 or +12  
> lines to ground?
>
> It would make some sense to do that with a 2, or so, ohm series  
> resistor but most current meters will look like a short circuit on  
> the supply until their internal fuses blow.
>
> Check out your current meter with a dry cell and a series resistor.  
> I'll bet its fuse is open.
>
> Did you check the voltage while connected to a running disk?
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