Ariadne Conill 🐰
my focusrite scarlett 2i2 has started buzzing. grr.
i am powering it via probably the shittiest possible usb-c cable. i wonder if getting a better cable would fix it.
adding a powered usb hub did not fix it. so i modified a usb cable to let me splice in power from an external 5v psu.
*that* fixed it.
this is a *server motherboard* ASRock. what are you even doing. why is there noise on the USB power rails.
(it is this board: https://www.newegg.com/asrock-wrx90-ws-evo-eeb-form-factor-12-0-in-x-13-0-in-30-5-cm-x-33-0cm-14-layer-pcb-2oz-copper-pcb-motherboards-amd-amd-wrx90-strx5/p/N82E16813162155 if you want to avoid it)
2oz copper seems like a lot for a PCB, but maybe it isn't
Graham Sutherland / Polynomial@ariadne 2oz is generally the minimum for motherboards, has been since the late 2000s.
I love this, so I@gsuberland @ariadne ah yes, the single-worst unit in electronics.
2 ounces (weight) of copper (volume) per square foot (area) - it's a linear dimension, approximately 70um