Do you have a question? Post it now! No Registration Necessary. Now with pictures!
- Posted on
April 25, 2006, 8:00 pm
rate this thread
I bought an USB IDE Adapter which comes with an external power supply
"box" that I'm supposed to plug into the adapter. The (laptop) disk
drive that I'm planning to plug into the adapter has a sticker on which
is written : 5V 1.0A . The adapter power supply sticker has : 5V 2A .
Does the difference in amperage means I should't use the adapter?
The power supply also has a diagram of the connecting holes (the
adapter has 4 pins) : 1=+12V, 2=[empty], 3=GND, 4=+5V . How do I block
the 12V if I need only 5V?
Re: Connecting IDE Adapter to disk - voltage, amperage question?
No, so long as the supply is regulated (as that one is) it
is good to have a reasonable margin, a supply capable of
higher output current than the device needs. On an
unregulated supply the story can be different as too high a
current rating means the voltage may float over the target
value but there are no unregulated external enclosure
supplies, as far as I know.
It can be ignored, or if the enclosure had a fan, it might
use the 12V for that fan. The 12V would only be deliverd by
a connector with a pin for the 12V signal and your hard
drive will not have this connector type so it's fine left