Super annoying behavior indeed. But thanks to open source, being able to look at the driver and understanding how that SFP check is done, some people at the Se

Super annoying behavior indeed. But thanks to open source, being able to look at the driver and understanding how that SFP check is done, some people at the Serve The Home forum were able to figure out which EEPROM bit needs to be flipped for these cards to accept any and all SFP modules: https://forums.servethehome.com/index.php?threads/patching-intel-x520-eeprom-to-unlock-all-sfp-transceivers.24634/ https://forums.servethehome.com/index.php?threads/patching-i... I saw that and wrote an automated patcher as a quick python hack to automate that: https://gist.github.com/ixs/dbaac42730dea9bd124f26cbd439c58e https://gist.github.com/ixs/dbaac42730dea9bd124f26cbd439c58e