• misterundercoat@lemmy.world
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    20 days ago

    Just be sure to clear the lint off your coils every five years or so. Otherwise you’re making the poor guy suck air through a shag carpet.

  • Warl0k3@lemmy.world
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    20 days ago

    Thermal cycling is one of the biggest stressors electrical components can be subjected to. Leaving your processor on and at a consistent load massively improves the lifetime of the chip. So take THAT, mom!

    • 𝕾𝖕𝖎𝖈𝖞 𝕿𝖚𝖓𝖆@lemmy.world
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      20 days ago

      Heat cycling is a huge stressor on any material. That’s part of why diesel freight trucks tend to last well past a million miles while it’s newsworthy if a passenger car makes it that long. How many times a week is your Toyota Corolla driving 10+ hours at a time? Most commonly, when you hear of a million mile vehicle, it was making long haul deliveries daily and was maintained at the correct intervals.

      • oce 🐆@jlai.lu
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        20 days ago

        What’s the heat stress difference between idle/off and heavy-usage/idle for a PC? If the latter is much bigger, then turning it off may have a negligible impact while still saving some energy. Avoiding heavy-usage may also be a better solution than avoiding turning it off.

        • Warl0k3@lemmy.world
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          20 days ago

          It’s obviously more complicated than can be summarized in a lemmy comment, but that said you’re absolutely correct. That load management is the reason bitcoin mining farms undervolt their cards, so that they can maximize lifetime while minimizing energy usage.

    • Stephen G. Tallentyre@lemmy.world
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      19 days ago

      I had to scroll way too far to find this. Especially considering that I have a desktop with full disk encryption, I don’t worry about it. If anyone ever did break into my house and take my computer, they would have to unplug it first; at that point, the disk would encrypt, and they’d have some really nice hardware which sucks for me, but that’s all they’d get.

      • Warl0k3@lemmy.world
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        19 days ago

        I feel that. All the information stored on my PC isnt worth a fraction of what my graphics graphics card cost…

      • Emerald@lemmy.world
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        19 days ago

        If anyone ever did break into my house and take my computer, they would have to unplug it first; at that point, the disk would encrypt

        The disk is always encrypted. When data is accessed, it is stored decrypted in RAM. The drive doesn’t decrypt when unlocking it and doesn’t encrypt when turning it off.

    • ZeffSyde@lemmy.world
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      18 days ago

      Way back before computers had sleep mode we were encouraged to shut it down when not in use to save electricity. I don’t think Windows 3.11 had it. The first time I think I remember encountering it was Windows 2000, but correct me if I’m wrong.

  • MonkeMischief@lemmy.today
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    19 days ago

    We’ve had a GE fridge that’s probably older than about 10 years. But you know, it’s complicated enough that it feels like it’s made to fail at some point.

    Well, stuff stopped cooling but all the lights were on and everything else worked. It was really weird. We were thinking it might be a dead compressor or something. Crap, do we need a new fridge?

    Nope! What basically amounts to a glorified computer fan with a fancier proprietary plug does all the work of distributing that cold air through the rest of the unit.

    The proprietary plug is totally so they can sell it for $45, of course. Lol anyway, works like new!

    Also get a dust mask and vacuum + blow out the back of your refrigerators, people. They get grooooss!!!

    • mechoman444@lemmy.world
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      19 days ago

      Ya. That black server fan in the frig is very common for the model of frig…also the little white resistance sensor on the coil tends to fall off of the tube sometimes causing it to defrost poorly. I like to swap them out when I’m doing the fan as a prophylactic.

      The reason they use that fan is because it’s super quiet and voltage can be regulated to it for different spin speeds which I turn is supposed to save energy.

      The issue with the fan in and of itself is that it’s inherently an aftermarket fan produced by an aftermarket manufacturer for GE. It’s just junk.

  • ArcaneSlime@lemmy.dbzer0.com
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    20 days ago

    Fridges 100% die, they’re made to now. If your fridge is really that old and you can manage it, NEVER get rid of it, tell your parents to leave it to you in their will lmao.

    • stupidcasey@lemmy.world
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      20 days ago

      You will lose money this way, old refrigerators were way way more power hungry and you can easily expect to spend more than a new fridge within 5 years.

      • Jiggle_Physics@lemmy.world
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        20 days ago

        You can still get new fridges that will last for decades. It just won’t be one with LCD screens, ice machines, in door dispensers, complex internal designs, etc. Every one of those things simply creates a cascade of new points of failure, and component materials of varying ability to deal with the stress of being a fridge. You can buy new, efficient, fridges that are nothing but a box that cools, and a box that freezes, with doors. They will last for decades if you don’t do anything crazy, or your house isn’t destroyed by a natural disaster.

  • vithigar@lemmy.ca
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    20 days ago

    Fridges actually do rest. They cycle on and off as needed to maintain their desired temperature and on average only spend about 30% to 40% of their time “on”.

    • nepenthes@lemmy.world
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      20 days ago

      I only found this out the other night because my fridge went dead silent for a long time. I thought it was borked, so I was peering deep into the freezer when I saw The Gates of Hell through the grate.

      (Okay, so full disclosure, I had smoked some pot, but it totally looked like when Dana opened the fridge to Zuul before she was The Gatekeeper.) 😱😱😱

      Anyways, turns out it was in defrost mode (which happens twice a day), and that involves some elements going orange or something. I know that’s vague-- I looked it up, but as I mentioned, I was high, so I only kinda remember, lol.

      Edit:

      The refrigerator activates a heating element located near the evaporator coil. This element warms the coils, causing any ice buildup to melt.

    • Fosheze@lemmy.world
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      20 days ago

      Actually modern fridges are usually less efficient. But that’s because they use refrigerants that are literally thousands of times less harmful to the environment.

      Old appliances frequently used R-12 which is an damn nice refrigerant except it depleted ozone and has a GWP (global warming potential) of 10,900. That means 1lb of R12 released into the air causes the same amount of global warming as releasing 10,900 lbs of CO2.

      Newer appliances use refrigerants like R134a which still works pretty well, doesn’t deplete ozone, and only has a GWP of 1,430.

      The newest appliances are more frequently using R-600a which is hard on compressors because it has a high head pressure and it doesn’t cool quite as well. But it also doesn’t deplete ozone and it has a GWP of just 3. The bigest downside of that one is that it’s very flamable (it’s isobutane) so the legal limit on how much residential appliances can us is very low.

    • Sauerkraut@discuss.tchncs.de
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      20 days ago

      Old appliances broke, but they were made to be easy to fix so our grandparents could just swap out the broken parts. I helped my dad replace the compressor on an older fridge as a kid and the heating elements on my grandma’s toaster. I remember my dad taking me to some locally owned mom and pop hardware store where we could buy replacement parts for old appliances off the shelf. My parents still have the toaster, but that store closed down and new stuff isn’t made to be fixable anymore (most likely due to planned obsolescence thanks to late-stage-capitalism).

      On a tangent, when you think about it, throwing an entire toaster away because one heating coil burned out or throwing awag an entire fridge just because the compressor gave out is not rational. But if you tell people we should have the freedom to buy repairable appliances then they look at you like you are crazy. To me, it is the other way around. Sustainability isn’t political or a luxury, it is an inevitabe, unstoppable force of equilibrium.

      • Fosheze@lemmy.world
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        20 days ago

        When it comes to refrigeration in particular newer appliances tend to break more frequently because they are using more environmentally friendly refrigerants. Old CFCs cooled really well with minimal work from the compressor. Newer fridges and freezers are more frequently using isobutane (R600a) because it doesn’t deplete ozone and it’s GWP (global warming potential) is 3 where the GWP of even non ozone depleting HFCs can frequently be in the thousands. The problem is isobutane requires higher head pressures to work properly and doesn’t cool as well as older refrigerants so the compressors have to work much harder to get the same result.

        Also when it comes to household fridges and freezers, they really aren’t worth it to fix anymore. You need an EPA 608 cert to even touch refrigerants (in the US anyways). Plus you need a two stage vacuum pump and a recovery machine (amongst other things) both of which can easily cost as much as a new fridge. Then you need to actually have the skillset to remove the broken component and braze a new one in because everything uses brazed connections now to minimize leaks. Then you need to have the know how to properly recharge the system with refrigerant which when you’re working with a critical charge of maybe 2oz of refrigerant is an absoulte pain. All in all, maybe if you are already an HVAC tech and had the tools and materials on hand you might barely break even fixing your own fridge or freezer.

        When it comes to consumer refrigeration they can’t be user repairable due to having to work with refrigerants and economies of scale mean they just generally aren’t worth a trained techs time to fix.

          • howrar@lemmy.ca
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            20 days ago

            There’s a YouTuber (Technology Connections) who’s really into heat pumps, which is the tech responsible for refrigerators and air conditioners.

      • MonkderVierte@lemmy.ml
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        19 days ago

        I’ve read somewhere it is because compressor nozzle has to be made thinner/fragiler for the better efficiency. Other comments say it’s because old refrigerants were better but more “dangerous”. Maybe both.