Mar 10, 2020 #81 U usafltg n00b Joined Feb 6, 2020 Messages 13 Mohonri said: So the blue line is basically sitting at 0, at least when the multimeter is sampling it. And 6V on the red line is about half what I would expect. There's something sort of unusual going on here. Click to expand... On bootup - Pin 1 initially reads 12V, then scales back to 6V. It's like it whirs up the Fan to Full speed for an initial test, then scales it back.
Mohonri said: So the blue line is basically sitting at 0, at least when the multimeter is sampling it. And 6V on the red line is about half what I would expect. There's something sort of unusual going on here. Click to expand... On bootup - Pin 1 initially reads 12V, then scales back to 6V. It's like it whirs up the Fan to Full speed for an initial test, then scales it back.
Mar 10, 2020 #82 M Mohonri Supreme [H]ardness Joined Jul 29, 2005 Messages 5,772 usafltg said: On bootup - Pin 1 initially reads 12V, then scales back to 6V. It's like it whirs up the Fan to Full speed for an initial test, then scales it back. Click to expand... That's actually normal--many fans won't start at 6V, but if they're already spinning, they'll happily keep spinning on 6V.
usafltg said: On bootup - Pin 1 initially reads 12V, then scales back to 6V. It's like it whirs up the Fan to Full speed for an initial test, then scales it back. Click to expand... That's actually normal--many fans won't start at 6V, but if they're already spinning, they'll happily keep spinning on 6V.
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