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Autopsy Of A Freshly Cooked 10Gbit SFP+ Network Adapter
Post Reply RetroFed Forums Forum Index » Hardware
AuthorMessage
cm0002 lemy.lol cm0002@lemy.lol
Joined: 2025-02-15
Quote

Link: https://hackaday.com/2026/06/20/autopsy-of-a-freshly-cooked-10gbit-sfp-network-adapter//
14   Original
lnxtx (xe/xem/xyr) sopuli.xyz lnxtx@sopuli.xyz
Joined: 2025-09-02
#2 · Quote Reply

I'm sorry, but the FS vendor specifies working temperature as a "case temperature".

In this situation
(Note: The FS P/N is changed from SFP-10G-T to SFP-10G-T-30, but the product is the same.),
the case temperature is specified from 0 °C to 70 °C.

Looks like the cooked module was used in a desktop fan-less class switch.
Does not compute, there is no airflow.
6
cmnybo discuss.tchncs.de cmnybo@discuss.tchncs.de
Joined: 2023-06-11
#3 · Quote Reply
lnxtx (xe/xem/xyr) wrote:
I'm sorry, but the FS vendor specifies working temperature as a "case temperature". In this situation (Note: The FS P/N is changed from SFP-10G-T to SFP-10G-T-30, but the product is the same.), the case temperature is specified from 0 °C to 70 °C. Looks like the cooked module was used in a desktop fan-less class switch. Does not compute, there is no airflow.

10GBASE-T uses a lot more power than fiber or a DAC. Those SFP+ modules definitely need some airflow.
5
FiniteBanjo programming.dev FiniteBanjo@programming.dev
Joined: 2025-12-23
#4 · Quote Reply

One time I had a dream where I had just bins and bins of different capacitors and people kept bringing in broken routers, modems, LEDs, remote controls, toys, industrial power supply units, you name it and I would just swap out the capacitors and it would all work again like some kind of fukin wizard rewriting the runes.
4
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