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Cake day: August 16th, 2023

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  • Nollij@sopuli.xyztoxkcd@lemmy.worldxkcd #3211: Amperage
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    8 days ago

    In the US, most protection comes from the breaker. It’s not common (or at least, not standard) to have overcurrent protection on extension cords, power strips, or even the outlet itself. And for typical wiring and uses, it usually works well enough. But it is possible to connect a space heater or hairdryer (1500w and 1800w respectively, due to the 80% rule for continuous draw) to that standard 16-gauge extension cord, or connect multiple space heaters to one circuit. Some homes are wired… Creatively… Making it easy to do. In these cases, you’re relying on the 15-amp breaker to trip, which would happen quickly. Not quite as quick, but still happens on a 20-amp. But it might melt a 15-amp receptacle first

    If it’s a 30-amp circuit, it won’t trip at all, unless the outlet melts to a short. And this is all assuming the wiring in the wall is rated for that amperage, which is implied but not stated. There are certainly a number of stories where someone upgraded the breaker to keep it from tripping, but didn’t upgrade the wiring.

    If we assume he’s talking about the wiring in the wall, this gets very simple. I once lived in a place where the upstairs bedroom and downstairs living room were on the same circuit. I currently live somewhere where a single circuit controls ALL of the bathroom outlets (multiple bathrooms), the garage, as well as outside outlets. Apparently GFCI outlets were more expensive than the entire mess of running copper all over the place.


  • This is highly dependent on what your needs are and how you plan to solve it. SATA-3 maxes at 6gbit, which SAS-2 had in 2009. Most cards are x8, and have at least 4 full speed SAS lanes (of whatever generation). That means 24 Gbit. PCIe x8 2.0 (from 2007) had 4 GB (32 Gbit). So if that meets your needs, you can run it on an ancient board.

    However, if you need something more advanced, such as SAS-3, a SAS expander, or a card with more native lanes, then you would need to plan accordingly.

    I’ve been running on an LSI 9211-4i4e, which is only a PCIe 2.0 card, for many years. I did notice my speeds dropped when I expanded the 4e to a 15-bay DAS (plus the 4 internal SATA drives), but it’s still enough to meet my needs.


  • It’s not really about 24/7, but it is about quality of components. Enterprise gear is made using slightly better parts and tighter tolerances. Things like more expensive capacitors rated for more hours/cycles, better power filters, things like that.

    The end result (and this is easily verified) is the failure rate is much, much lower than comparable consumer-grade equipment.

    There is sometimes a blurry line between what counts as enterprise vs pro-sumer vs consumer gear, though.






  • Many, many years ago (20-ish?) I spent a full weekend trying to get Gentoo working on an even older PC. I wasn’t completely new to Linux (having installed and used a bit of Mandrake and Fedora Core), but I was certainly no expert.

    I spent the entire weekend trying and failing to get a usable system, reinstalling numerous times with different options, installing countless packages, and following innumerable guides on troubleshooting. I never had a system even close to as usable as Fedora was out of the box.

    Still, I consider that weekend a complete success. I learned more about Linux in that one weekend than at any point since. Everything after that has been little tidbits needed for the task at hand, without much of the base foundational understanding. Failing with Gentoo taught me so much.




  • A credit card the account is with visa, tho it may be managed by your bank thanks to partnerships and bank end integration. Depending on the circumstances you actually will be directed by your bank to contact visa or who ever directly or be forwarded by your bank.

    Do you have a source on this? Because it directly contradicts EVERYTHING I have ever experienced. Visa is a payment processor, but more as a middleman. I’ve even been redirected (through automated systems) back to my bank when making a purchase using a Visa card. Any disputes are handled by bank. You can’t get a Visa card without going through a bank. My debit card has a MC logo and can be used as such, but it’s also my ATM card.

    Your point about debit vs credit is valid, though possibly more convoluted than needed. On credit, it’s someone else’s money in limbo, until the bill is paid.








  • There are a number of reasons why someone can die from homicide in the medical sense, but not the legal sense. For instance, self-defense.

    Most places have some variation on these types of homicide:

    1. Aggravated homicide, where the murder was planned
    2. 2nd degree homicide, where it wasn’t planned but could reasonably be foreseen (e.g. savagely beating someone with a bat)
    3. Voluntary manslaughter/negligent homicide, such as knowingly driving a car with malfunctioning brakes
    4. Involuntary manslaughter, such as losing control of your car because of ice.

    There’s also situations where it isn’t a crime at all, but would still be medically homicide. I mentioned self-defense, but someone could get shot by a hunter because they were in the woods without an orange vest. There’s also certain cases where it’s legal for police to shoot someone, due to an active threat.

    All of these would be medically homicide, but only some would be called murder.