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Cake day: July 20th, 2023

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  • Did you measure voltage drop across the pump while it’s trying to start up? The voltage will only drop when there’s current being drawn. So with the pump off you would see full supply volts even on a highly resistive line. You could try lugging a battery down to the pump, and jump it to get it started, then remove the battery jumpers but keep the pump running on your main run, then measure the volts across the pump.

    Or you could try to measure the resistance of your wiring with your meter. You would disconnect it from your 12v source, then short the pump side, then measure the ohms across the pair at the source side. Also measure the resistance across your pump windings when it is disconnected, but with the switch on.

    I’ll throw out some example numbers. Say you have a pump that says it needs 6 Amps. Chances are the inrush current is more like 12A. If you measure across the terminals with the pump disconnected from power with the switch closed, you might measure around 1 Ohm. Now if you measure your very long supply line and get 2 Ohms. Then you would only get 12V/(1+2 )Ohms = 4 Amps through the whole system. With the pump drawing 4 Amps you would only see 4V at the pump terminals when it is already running.





  • All of the OP’s points could be said about church sermons as well, and yet there’s still thousands of church gatherings every week.

    So I think your point hits the nail on the head. People don’t go to these large gatherings because they’re looking for a presentation of convincing arguments, books and recordings are better for that. They go to experience the sense that they are part of something bigger than themselves. They want to feel like they are contributing to something important, and a large crowd all in unison makes them feel that way. Rallies aren’t meant to change minds, they’re meant to get the base excited to donate/ volunteer/ talk to anyone who will listen.




  • Fermion@feddit.nltoTechnology@lemmy.world*Permanently Deleted*
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    15 days ago

    There’s no risk for a factory condition unit. This rumor started after people with units that had been dissasembled and reassembled had issues with vertical orientation. It turned out that it’s very easy to mess up the seals that keep the liquid metal thermal interface in place. So units that had been previously taken apart had liquid metal slowly leak, causing overheating and/or shorting.

    If you haven’t taken the cooler off the mainboard, using the vertical stand is just fine. I haven’t seen any evidence of factory assembled units suffering leaking. It does imply that user servicing of ps5’s is a bit risky, and you might need to be wary of used units where you don’t necessarily know the service history.

    To avoid unnecessary confusion, taking the covers off to add an m.2 ssd does not add any risk.