I have a SARC 386 M326 V5.2 RC4018A4 and I am not sure which orientation to put the fpu in.

I put it in the same orientation as the cpu and the system wouldn't boot, the psu wouldn't spin.
then I realised I didn't set any pins but decided better not to keep trying without being sure what way it goes in.

Closest a found was a stasons pinout for M-326 VER. 2 but no idea on fpu orientation.

my board looks exactly like this