• brucethemoose@lemmy.world
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      2 天前

      Depends.

      Toss the GPU/wifi, disable audio, throttle the processor a ton, and set the OS to power saving, and old PCs can be shockingly efficient.

      • Aceticon@lemmy.dbzer0.com
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        15 小时前

        Stuff designed for much higher peek usage tend to have a lot more waste.

        For example, a 400W power source (which is what’s probably in the original PC of your example) will waste more power than a lower wattage on (unless it’s a very expensive one), so in that example of yours it should be replaced by something much smaller.

        Even beyond that, everything in there - another example, the motherboard - will have a lot more power leakage than something designed for a low power system (say, an ARM SBC).

        Unless it’s a notebook, that old PC will always consume more power than, say, an N100 Mini-PC, much less an ARM based one.

        • WhyJiffie@sh.itjust.works
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          13 小时前

          For example, a 400W power source (which is what’s probably in the original PC of your example) will waste more power than a lower wattage on

          in my experience power supplies are more efficient near the 50% utilization. be quiet psus have charts about it

        • brucethemoose@lemmy.world
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          15 小时前

          All true, yep.

          Still, the clocking advantage is there. Stuff like the N100 also optimizes for lower costs, which means higher clocks on smaller silicon. That’s even more dramatic for repurposed laptop hardware, which is much more heavily optimized for its idle state.

      • cmnybo@discuss.tchncs.de
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        2 天前

        You can slow the RAM down too. You don’t need XMP enabled if you’re just using the PC as a NAS. It can be quite power hungry.

        • brucethemoose@lemmy.world
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          2 天前

          Eh, older RAM doesn’t use much. If it runs close to stock voltage, maybe just set it at stock voltage and bump the speed down a notch, then you get a nice task energy gain from the performance boost.

          • fuckwit_mcbumcrumble@lemmy.dbzer0.com
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            2 天前

            There was a post a while back of someone trying to eek every single watt out of their computer. Disabling XMP and running the ram at the slowest speed possible saved like 3 watts I think. An impressive savings, but at the cost of HORRIBLE CPU performance. But you do actually need at least a little bit of grunt for a nas.

            At work we have some of those atom based NASes and the combination of lack of CPU, and horrendous single channel ram speeds makes them absolutely crawl. One HDD on its own performs the same as this raid 10 array.

            • brucethemoose@lemmy.world
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              1 天前

              Yeah.

              In general, ‘big’ CPUs have an advantage because they can run at much, much lower clockspeeds than atoms, yet still be way faster. There are a few exceptions, like Ryzen 3000+ (excluding APUs), which idle notoriously hot thanks to the multi-die setup.

    • Damage@feddit.it
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      2 天前

      So I did this, using a Ryzen 3600, with some light tweaking the base system burns about 40-50W idle. The drives add a lot, 5-10W each, but they would go into any NAS system, so that’s irrelevant. I had to add a GPU because the MB I had wouldn’t POST without one, so that increases the power draw a little, but it’s also necessary for proper Jellyfin transcoding. I recently swapped the GPU for an Intel ARC A310.

      By comparison, the previous system I used for this had a low-power, fanless intel celeron, with a single drive and two SSDs it drew about 30W.

      • BeardedGingerWonder@feddit.uk
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        18 小时前

        Literally did this migration this weekend. Still need to install the A310 drivers and I don’t run Jellyfin (streaming handled client side with minidlna or SMB) but how do you find it?

        • Damage@feddit.it
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          15 小时前

          Drivers? Are you running it on Windows? On Linux I just plugged it in and it worked, Jellyfin transparently started transcoding the additional codecs.

          It fixed my issue with tone mapping, before this HDR files on my not-so-old TV showed the wrong colors.

          • BeardedGingerWonder@feddit.uk
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            13 小时前

            I’ve not desktop environment on the NAS, it was plug and play in terminal. I did get an error about HSW/BDW HD-Audio HDMI/DP requiring binding with a gfx driver - but I’ve not yet even bothered to google it.

            I read somewhere the sparkle elf I have just ramps the fan to 100% at all times with the Linux driver and has no option to edit fan curve under Linux (suggested fix was install a windows VM, set the curve there and the card will remember, but after rebuilding the NAS and fixing a couple of minor issues to get it all working I couldn’t face installing windows, so just left it as is until I have the time lol).

            • Damage@feddit.it
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              12 小时前

              The host is running Proxmox, so I guess their kernel just works with it.

              It does run the fan way more than I’d like, but its noise is drowned out by the original AMD cooler on the CPU anyway, but thanks for the info, I may look into it… But I guess I’d have to set up GPU pass-through on a VM just for that.

      • lectricleopard@lemmy.world
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        2 天前

        Ok, im glad im not the only one that wants a responsive machine for video streaming.

        I ran a pi400 with plex for a while. I dont care to save 20W while I wait for the machine to respond after every little scrub of the timeline. I want to have a better experience than Netflix. Thats the point.

        • Damage@feddit.it
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          1 天前

          Eh, TBH I’d like to consume less power, but I mean, a 30-40W difference isn’t going to ruin me or the planet, I’ve got a rather efficient home all in all.

      • YerbaYerba@lemmy.zip
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        1 天前

        I have a 3600 in a NAS and it idles at 25w. My mobo luckily runs fine without a GPU. I pulled it out after the initial install.

    • leftascenter@jlai.lu
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      2 天前

      A desktop running a low usage wouldn’t consume much more than a NAS, as long as you drop the video card (which wouldn’t be running anyways).

      Take only that extra and you probably have a few years usage before additional electricty costs overrun NAS cost. Where I live that’s around 5 years for an estimated extra 10W.

      • Damage@feddit.it
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        2 天前

        as long as you drop the video card

        As I wrote below, some motherboards won’t POST without a GPU.

        Take only that extra and you probably have a few years usage before additional electricty costs overrun NAS cost. Where I live that’s around 5 years for an estimated extra 10W.

        Yeah, and what’s more, if one of those appliance-like NASes breaks down, how do you fix it? With a normal PC you just swap out the defective part.

        • fuckwit_mcbumcrumble@lemmy.dbzer0.com
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          2 天前

          Most modern boards will. Also there’s integrated graphics on basically every single current CPU. Only AMD on AM4 held out on having iGPUs for so damn long.

    • ImgurRefugee114@reddthat.com
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      2 天前

      I’m still running a 480 that doubles as a space heater (I’m not even joking; I increase the load based on ambient temps during winter)

    • Encrypt-Keeper@lemmy.world
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      1 天前

      I have an old Intel 1440 desktop that runs 24/7 hooked up to a UPS along with a Beelink miniPC, my router, and a POE switch and the UPS is reporting a combined 100w.