DP/2 Syntaur EPROM support

Hey, Syntaur, I bought this EPROM from you guys:

IC, Ensoniq DP/2 Operating System version 1.02 EPROM
Part #DP2EPR

The DP/2 has 2 EPROM slots - “CODE” and “OS”…this Syntaur part is clearly labelled “OS” but it has too many pins to replace the OS chip, but the correct amount for the CODE chip.

So I don’t know if I actually got a CODE EPROM or an OS EPROM burned onto the wrong sized chip.

Any info appreciated, thanks!