I'm fairly certain the pc87311 chip is the one that handles the FDC.
The datasheet can be found here https://cdn.datasheetspdf.com/pdf-down/P/C/8/PC8-7311.pdf
and has a table on page 13 which should link to some jumpers.
I'm thinking JP 1,2,3,4,5 & 6 are good candidates to verify continuity to from the corresponding pins on the chip, pin 65,66,71,73 & 74
Enabling the fdc should then be possible.

no idea about the ide since that is handled by another chip.

Thanks!

Also I just found something quite similar (same brand, same GP-4032 reference) but with different jumper blocks locations, except for the JP1 to 6 one which indeed seems to used to enable/disable all the features except for the IDE (looks like there are no jumper for the floppy).
https://arvutimuuseum.ee/th99/c/A-B/20359.htm

I'll see if I can make something of that.

EDIT: my bad, it is said in the bottom miscellaneous note that the location of jumpers JP7, JP10, JP11, S2, S3, and S4 was not presented by the manufacturer. So the previous link actually corresponds to my card!

with that info JP1,2,3,4,5 are likely the config jumpers, and either setting JP1 or JP5 different to what's on your first photo should enable the Floppy controller. That is, if the order lines up between chip & jumpers.
Though I'm guessing you might also want some serial ports & a parallel port.

Good luck & enjoy !

Thank you!

Have adjusted the schema (positions, added JP7)
https://theretroweb.com/expansioncards/928