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- Jul 15, 2024
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Hey all quick question. I am putting together my Ashida and I have been running test a various stages. At this point I have the PMS, Ashida interface, and PD3 all in the case with the batteries hooked up and the system boots into RVLloader. But the fan is behaving strangely. It starts at seemingly full blast when the system boots, pretty normal thing for computers and devices, but then it stops and starts a sort of electronic clicking sound as if its trying to spin but isn't being given enough power or something. A mix between coil wine and general mechanical clicking. I thought it may be a faulty fan issue and was glad I bought two from digikey to have backups/use on a future portable. But I get the same behavior on the second fan so unless I got two faulty fans its something with the wiring maybe?
But nothing is really wired in at this point, and the system boots so there can't be something MAJORLY wrong with the wiring I would assume. My next guess was it was something to do with the NTC tempurature sensor giving the fan strange temperature reading without the system being fully assembled with heatsinks? Or could the minimal wiring be causing the issue where some part in the fan control chain isn't connected?
The only last weird behavior I noticed as the second fan I tried was behaving similar but to a much less loud/obvious degree when the cables to the fan were longer. When I cut the cables to fit the fan into the second case the behavior got worse? Which again brings me back to some sort of power issue? Or could be interference with the F+ / F- cables being that short? But usually short cables help interference. Ha I am just at a loss.
I do have a video of the issue posted in the modding channel of the discord if seeing/hearing the issue would be easier than the picture.
But nothing is really wired in at this point, and the system boots so there can't be something MAJORLY wrong with the wiring I would assume. My next guess was it was something to do with the NTC tempurature sensor giving the fan strange temperature reading without the system being fully assembled with heatsinks? Or could the minimal wiring be causing the issue where some part in the fan control chain isn't connected?
The only last weird behavior I noticed as the second fan I tried was behaving similar but to a much less loud/obvious degree when the cables to the fan were longer. When I cut the cables to fit the fan into the second case the behavior got worse? Which again brings me back to some sort of power issue? Or could be interference with the F+ / F- cables being that short? But usually short cables help interference. Ha I am just at a loss.
I do have a video of the issue posted in the modding channel of the discord if seeing/hearing the issue would be easier than the picture.
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