I rebooted to scan my HD for errors and when it finished, I noticed my right monitor (http://www.lg.com/us/support-product/lg-L1933TR-SF#) was not on. I hit the power button and nothing happened. I tried plugging it into a different plug, nothing.

I need to try a known working power cord and see if that helps.

Tried a known working power cord. Nothing. Caps?

Sounds like the cap, according to: http://www.fixya.com/support/t2396522-l1933tr_sf_lg_monitor_dead_power_blue