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@azonenberg@ioc.exchange
2025-06-23 07:37:12

First round PI workup on the switch line card is done.
All of the other rails are fine, the only one with any significant issues of concern is 1V0 which I am suspecting might be a nothingburger (test point too close to the DC-DC so the local bypass caps dont have much of an impact).
Gonna solder a probe on to get a measurement at the actual BGA vias and see how noisy the rail is there, then probably put some diff probes on the QSGMII while I've got the thing decabled.

Ethernet switch line card with UART and SWD/SWO cables coming off it
@brentsleeper@sfba.social
2025-06-22 00:44:45

Apropos of how I crashed and burned in today’s #Connections, my #Strands puzzle also was a big, fat nothingburger.
#Strands475
“Goose eggs”
🟡🔵🔵🔵
🔵🔵🔵🔵