5 ms·
Every PCIe 10G ethernet card I've seen has a heatsink on it, sometimes covering the entire card or even have little fans on the heatsink. Expecting it to work
by RachelF 3mo ago
Every PCIe 10G ethernet card I've seen has a heatsink on it, sometimes covering the entire card or even have little fans on the heatsink.
Expecting it to work full time in a laptop is a bit of a stretch of the heat dissipation budget.
Also, the laptop he is working has the AMD FP8 chipset - depending on how the ports are setup, he might only get 10G USB, if the ports are allocated to video instead.
- jfb 3mo agoYeah, 10Gb ethernet runs hot. I just rewired the house with 10Gb (we have 8Gb FTTP) and it's kind of upsetting how hot my Thunderbolt dock gets.
- deleted 3mo ago[deleted]
- Gigachad 3mo agoI looked in to it and it seemed like 10gbit was much better over fiber. Ended up deciding that 2.5gbit is plenty. The 2.5 gear is significantly cheaper and runs cool.
- jfb 3mo agoYeah, I use DAC for the desktop and fibre between floors. It's just the Mac's desktop that uses RJ45 copper.
- deleted 3mo ago[deleted]
- drnick1 3mo ago> I looked in to it and it seemed like 10gbit was much better over fiber. Yes, except that most devices use Ethernet. So, at the end of the day, you still need Ethernet cables unless you want to deal with an additional switch or converter in every room.
- Gigachad 3mo agoIndeed, that's largely why I decided 10gbit at home isn't really worth it. The current 10gbit ethernet stuff is expensive and power hungry, the enterprise stuff is hard to use on consumer gear. And the only real use case is super fast access to a nas.
- kstrauser 3mo agoI got it solely because our ISP bumped our home fiber to 10Gb and it would’ve hurt my soul for the router to be slower than that. And hey, if you’ve already got a router with 10Gb ports available and ready to go…
- eqvinox 3mo agoFiber/10Gbase-*R is Ethernet too. Please say copper/RJ45/base-T when you mean copper/RJ45/base-T.
- sekh60 3mo agoThank you.
- antonvs 3mo agoExcuse me, I believe you mean GNU/copper/RJ45/base-T
- eqvinox 3mo agoMy copper/RJ45/base-T is running musl libc + busybox!
- fluoridation 3mo agoIf you want to ackshually, both fiber and copper are empty pipes that can carry any layer 2 protocol, and are not inherently Ethernet. They only become Ethernet cables when they're connected to terminals that pass that protocol through them. Unless we're defining some networking standard, "Ethernet cable" is a perfectly acceptable term. Everyone will understand what is meant. The added specificity you're asking for doesn't improve the quality of communication.
- DrPhish 3mo agoI redid everything that matters in my house/homelab with DAC cables for exactly that reason. Order of magnitude difference in watts and heat
- seany 3mo ago[dead]
- znpy 3mo ago> it's kind of upsetting how hot my Thunderbolt dock gets. I have seen the same with just usb-c multi-port dongles for macbooks (the ones they give you at work along with the macbooks). in fairness to the docs/dongles though, they have an incredible amount of features that would have been science-fiction twenty years ago.
- bartvk 3mo agoWhich dock (brand/model) did you get?
- bjt12345 3mo agoHopefully short-run 10GIGE-T might get cooler with better DSP, but for long runs I think it will remain fibre.
- deleted 3mo ago[deleted]
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- timschmidt 3mo agoNew chips from Realtek burn < 2W for the chip and < 3-4W for the board: https://www.servethehome.com/cheap-10gbe-realtek-rtl8127-nic-review/ https://www.servethehome.com/cheap-10gbe-realtek-rtl8127-nic...
- userbinator 3mo ago...and yet they're still covered by a huge heatsink.
- mystifyingpoi 3mo agoTo add perspective, an old-school 7805 voltage regulator dissipating just 1 watt is already impossibly hot to hold with bare hand (as me how I know). So 3-4 watts on a small module will make it noticeably hot.
- drnick1 3mo agoThey aren't huge at all, the new RTL cards are tiny. I wish 2-port versions were available for a home server upgrade.
- numpad0 3mo ago4W is TDP for some of Pi-style mini computers. Lots of them have fans.
- timschmidt 3mo agoPi 4 and 5 both idle around 3W. But a Pi 5 can pull up to 16W with a USB peripheral, full CPU load, and decoding 4k video. The Pi 4 / 5 will run OKish without a heatsink at idle wattages, but thermal throttle quickly if you attempt to do something intensive. These realtek 10gbe chips are more in the range of the Pi Zero class machines (0.5W idle, 2W loaded) which don't often come with heatsinks though they might benefit from them. If it has a good thermal connection to a good thick ground plane on the PCB, that's worth almost as much as a passive heatsink on the top of the chip. usb-c < card edge < motherboard integrated in terms of how much heat can be transfered through the connection. Where the motherboard would have the largest ground plane to soak up heat from such an IC and dissipate it passively. The usb-c module is worst case by being a small enclosed box with very little thermal connection through the plastic insulating housing. An aluminum enclosure might dissipate enough heat passively to make it pleasant to use.
- polski-g 3mo agoSo the entire Framework card's casing should have been copper?
- geerlingguy 3mo agoIf the whole thing were metal, the outer casing would transfer heat to skin too quickly, probably, for safety.
- randusername 3mo agoI was doing a comparison of 10G ethernet NICs just yesterday and ChatGPT was insistent that they are scorching regardless of actual throughput. Unless you manually downshift and upshift the communication rate. I'm having second thoughts about having one of those dongles on my desk all day for the same reason wireless charging seems wasteful.