Hi,
I finally got around to measure the internal supply pins of my
net5501 to see what exactly is going on. What i see are very very
short (<1us) drops of the 12 down that are larger than 1V. I guess
the drops of the 3.3V and 5V supply that i see at the same time
come from the 12V drop. But with the measurement equipment i have
here and the lack of schmeatics, i cannot be sure. (it could be the
other way as well)
Hence i'd like to try another power supply but i don't have any
12V with >3A here, only a 16V. Unfortunately, there is no specification
on what the net5501 can take as 12V suplly and whether these 12V
are connected to the harddisk or PCI connectors.
Hence i would like to ask the following questions:
* What is the exact specification of the 12 supply input?
* Where are those 12V connected to?
* Is there any stabilization or voltage limiter between the supply input
and the harddisk and/or PCI connector?
Attila Kinali
--
Why does it take years to find the answers to
the questions one should have asked long ago?
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