17 Nov
2008
17 Nov
'08
11:15 a.m.
Wouldn't it be more sensible if the voltage
selection circuit [were]
designed so that if a particular jumper [were] open it always gave a
lower output voltage tyhan if that jumper was closed (all other
jumpers being set the same). Then an open jumper would not fry
anything.
That's predicated on the assumption that undervoltage is safe. I'm not
convinced this is true; it seems plausible, even probable, to me that
undervoltage can lead to excessive current draw and such things as
logic not working right, producing "impossible" conditions like
multiple drivers squabbling over bus lines. (Consider what SMPSUs do
when fed undervoltage.)
But then it's my bitter experience that good
design and PC hardware
do not go together...
Preach it, brother!
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