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Joined 1 year ago
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Cake day: July 2nd, 2023

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  • It looks like you would want an even airflow through the whole PSU. The main heat-generating components are using the sides of the housing as a heat sink. I’m guessing the fan is mostly so the air inside the housing doesn’t get too warm, not to cool individual components.

    Where is the original air exhaust? If it’s near the bottom of the picture, that would confirm my theory. In that case, I would keep the fan placement as close to original as possible (i.e. the blue square).





  • Right, I guess I assumed CPU naming makes sense, so surely the lower number CPU must be worse in every way, right?😜

    Looks like going with the 7700X is a no-brainer for me then.

    As for your upgrade recommendations: Can you explain the benefits of a higher-end mainboard? I would think the mainboard shouldn’t make a huge difference, as long as it’s from a reputable manufacturer and compatible with all the other parts.

    Thanks for your help!




  • This seems to be a bug in the slicer. I’m seeing the same issue in OrcaSlicer if the skirt height is set to more than one layer (even if the skirt is disabled). This makes sense if a skirt is used (can’t print a continuous spiral if you have to switch between printing the object and the skirt), but not if it’s disabled.

    What slicer are you using? If it’s a PrusaSlicer fork, this is likely the same bug.



  • From a cursory read of the datasheet, using the “dead time control” pin seems to be the way to go. Basically, this pin is used to set the voltage, while the error amplifier inputs (that’s the closest function to “over current protection” this chip has) are used to adjust the output according to the load. For your application, you probably don’t need to use them at all.

    My instinct would be to disable the error amplifiers by connecting pins 1,2,15 and 16 to GND. You can then connect the wiper pin of the potentiometer to the deadtime control input, with the other pins of the potentiometer connected to GND and 3.3 V.

    I haven’t worked with this chip before, so take this with a grain of salt. You should probably use a simulation tool to check the circuit before you start destroying chips.








  • It is more efficient to have a ship moving with cargo than without, but that doesn’t mean there aren’t additional emissions. The ratio of profit to effort is just higher because there is some profit as opposed to none. You wouldn’t load a ship up with useless mass you can’t sell just so you’re shipping something.

    Your argument is like always running the heater in your car because that way the engine heat is at least used for something. Yes, technically the efficiency goes up because more of the energy in the fuel is harnessed. But that doesn’t mean the fuel usage or emissions are any lower, and in the summer the heater doesn’t do you any good either.



  • elDalvini@discuss.tchncs.detoSelfhosted@lemmy.worldWhen Pi-hole is down?
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    8 months ago

    I have my pi-hole setup as the upstream DNS in my router, with cloudflare as a secondary DNS. That way, all my devices always use the router for DNS (since that’s what is advertised in my DHCP) and the router then uses pi-hole if it’s available, or cloudflare if it isn’t. But the individual device doesn’t get to choose between different servers.