Joust Cabinet Power / Cabling Questions

[codeena]

Hi all, I got a working Joust cabinet w/a Rush 'n Attack pcb in it. I just want to run my pc with  the arcade monitor, but not the Rush 'n Attack.

I wanted to keep the original cab's power that's going to the marquee light, coin door lights, control panel button lights and monitor. Can I unplug certain cables that aren't being used: maybe the Rush 'n Attack pcb cable to Williams board? Which to unplug and which to leave in? I don't want to waste electricity. Plus, I would like to sell the pcb or any other part not being used.

Also, at the bottom of the inside of the cab, there is a single outlet located at the main power source. Would it be safe to plug in my pc into this?

Anyone w/a Williams cab (or similar) have experience w/this? As always, any fb is greatly appreciated!