mrzmaster wrote on 2022-07-17, 20:29: USB4VC is a pretty cool project. True! I also backed that project on kickstarter. But if I just want to use only a keyboard I think booting a whole Pi is a bit much, plus the Pico+keyboard can be powered directly of the PS/2 port.

I'm working on a USB keyboard to PS/2 converter using a Raspberry Pi Pico if anybody is interested: https://github.com/No0ne/ps2pico Currently the return channel (PC->keyboard) isn't implemented yet, so no LEDs on the USB keyboard light up.

Just solder a small bridge with e.g. a resistor leg over the broken trace as shown here: download/file.php?id=131578&mode=view

Hi! Just got a P3B-F in the mail which had the exact same problem. There was a broken trace near the BIOS eeprom in my case (see photo). After fixing that trace the board was working again. The green led near the AGP slot should definitely be off until the board is fully powered on. The big resistor …

Replaced the 3403, its not a firmware issue and thankfully everything is working perfectly again!

Sorry, false alarm! Its definitely the output opamp 3403 behind the RCA jacks which has a dead output. The right channel is perfect on the opamps input, need to replace that! 🙁

My CT4390s right output channel stopped working. Also line-in is only passed thru without the right channel, so I suspect a mixer issue? I did upload the EEPROM contents to my site, however. And as mentioned, the other way is to use a programmer to write a known good copy of the data to the EEPROM ( …