> Maybe removing the two original chips and using 2 chips of twice the
> size [...] instead works better... [...] If It wasn't recognized It may
> require patching the firmware as the size recognition may be hardcoded.

Yes and yes, as was established many moons ago:

https://morph.zone/modules/newbb_plus/viewtopic.php?topic_id=6112&forum=11&start=17 (#18)
https://morph.zone/modules/newbb_plus/viewtopic.php?topic_id=6112&forum=11&start=22 (#23)
https://morph.zone/modules/newbb_plus/viewtopic.php?topic_id=6112&forum=11&start=44 (#45)
https://morph.zone/modules/newbb_plus/viewtopic.php?topic_id=6428&forum=3&start=86 (#87)
https://morph.zone/modules/newbb_plus/viewtopic.php?topic_id=9655&forum=3&start=7 (#8)