@tubetime Is that a dual Pentium 1 board? The second slot can't be for a coprocessor since coprocessor functionality was officially built into everything from the 486 on up. I thought nothing actually could do SMP until the P2 era or so, but that sure seems to match up.
@nazokiyoubinbou no the empty socket is for the CPU (which was not installed when i got it). the other device is the cache controller