Memory Alpha  Power core  37,666pages on this wiki  A power core
was a component found in various technologies, responsible for
supplying energy with which to power the device or vessel.  In
2369, shortly after Starfleet took over the Cardassian space
station Terok Nor, Miles O'Brien, the station's chief of
operations, had to effect repairs on the secondary phase
modulators of the station's power core, amongst a litany of
other technical problems affecting the station. Shortly
thereafter, the crew of the station discovered a device
connected to the replicator systems which built a virus into the
replicated food at the molecular level. Analyzing the device,
Major Kira discovered that it contained a power core of
diboridium, indicating that it was Cardassian in origin,
although it was later discovered that it had been put in place
by Bajoran resistance fighters. Later, as the virus swept
through the station, Boslic freighter captain Jaheel attempted
to escape quarantine by disengaging his ship from the docking