Post AqgLtAqrCzFJIwIzSq by mikolasan@mastodon.social
(DIR) More posts by mikolasan@mastodon.social
(DIR) Post #AqgHW6cEOLiPgqD0PQ by stfn@fosstodon.org
2025-02-01T17:06:10Z
0 likes, 0 repeats
New blog post!In which I show how I am powering a typical 120mm PC case fan from a USB port to quietly cool my Raspberry Pi cluster.CW: bad soldering skillshttps://stfn.pl/blog/59-powering-fans-from-usb-pi-cluster/#RaspberryPi #boinc #diy_electronics #blog
(DIR) Post #AqgHgHxJ5KVFkvvFMe by tripplehelix@fosstodon.org
2025-02-01T17:08:00Z
0 likes, 0 repeats
@stfn You can get case fans that plug in via USB you know?
(DIR) Post #AqgHl5S506agQNbW40 by stfn@fosstodon.org
2025-02-01T17:08:50Z
0 likes, 0 repeats
@tripplehelix but there's not DIY fun in that
(DIR) Post #AqgJ1hvhoCKmLgwzvE by mikolasan@mastodon.social
2025-02-01T17:23:02Z
0 likes, 0 repeats
@stfn why don’t you use USB 3? It can give you faster speed
(DIR) Post #AqgJ6UsnkBU1KgsN84 by stfn@fosstodon.org
2025-02-01T17:23:57Z
0 likes, 0 repeats
@mikolasan whoa, why haven't I think of that?!
(DIR) Post #AqgJCJWyrZWprYRXjk by mikolasan@mastodon.social
2025-02-01T17:24:59Z
0 likes, 0 repeats
@stfn 😂
(DIR) Post #AqgJWtmhmaHe5pc7Oq by 7666@comp.lain.la
2025-02-01T17:28:15.518987Z
0 likes, 0 repeats
@stfn @mikolasan gonna be extremely pedantic here and say that the voltage has not increased with USB 3, but the amperage limit was upped from 500mA to 900mA, so you can run a bigger fan that pushes more air, but not necessarily at any speed faster than what USB 2 offers.
(DIR) Post #AqgJxWJNAAod6xaVOa by stfn@fosstodon.org
2025-02-01T17:33:32Z
0 likes, 0 repeats
@7666 @mikolasan but what about USB-C?!
(DIR) Post #AqgKD3MAaIFbwVIpxA by 7666@comp.lain.la
2025-02-01T17:35:49.562510Z
0 likes, 0 repeats
@stfn @mikolasan what if i told you that type C cables and ports missing all of the USB 3.0 specific pins exist...
(DIR) Post #AqgKV9uKxyFpTNuxyy by stfn@fosstodon.org
2025-02-01T17:39:37Z
0 likes, 0 repeats
@7666 @mikolasan nothing will surprise me about the mess that is the USB ecosystem
(DIR) Post #AqgL0yDfxRS2UQ8FuK by mikolasan@mastodon.social
2025-02-01T17:45:18Z
0 likes, 0 repeats
@stfn @7666@comp.lain.la terrible idea - this will make possible to connect your DIY board upside down 🙀
(DIR) Post #AqgL6dcdS2yULTVe2i by stfn@fosstodon.org
2025-02-01T17:46:23Z
0 likes, 0 repeats
@mikolasan oh no, that would make it run in reverse!
(DIR) Post #AqgLireLkGYgr6XTkm by stfn@fosstodon.org
2025-02-01T17:53:17Z
0 likes, 0 repeats
btw, my cluster reached almost 10k points in @einsteinathome
(DIR) Post #AqgLtAqrCzFJIwIzSq by mikolasan@mastodon.social
2025-02-01T17:55:04Z
0 likes, 0 repeats
@stfn hmm, yes but which way of air flow is the correct one?
(DIR) Post #AqgLw5zHkWXD5UdmEK by stfn@fosstodon.org
2025-02-01T17:55:41Z
0 likes, 0 repeats
@mikolasan looks like we are getting into deep philosophical questions
(DIR) Post #AqgQv2roMj7ctHSmSe by artfulsodger@fosstodon.org
2025-02-01T18:51:24Z
0 likes, 0 repeats
@stfn, I followed the instructions in https://www.instructables.com/How-To-Convert-A-Case-Fan-To-USB/ successfully last weekend to power a fan with a PWM connector using USB. It was fairly straightforward and worked okay.
(DIR) Post #AqgUDOPBKEVslVVosC by stfn@fosstodon.org
2025-02-01T19:28:25Z
0 likes, 0 repeats
@artfulsodger sure, that's another solution :)