Fallout: New Vegas Walkthrough

Steps...

(1) Go to El Dorado Power Station and install the Override Chip. (2) (Optional) Protect President Kimball during his official visit to Hoover Dam before powering up El Dorado Substation. (3) Report back to Yes Man.

Important Items...

Override Chip.

As usual, how we're going to go about completing this extremely brief, simple mission is completely in line with how our walkthrough has been written so far. Indeed, we highly recommend that you first complete the tasks outlined in our Walkthrough for the equally-brief quest known as You'll Know It When It Happens. There, you'll have the opportunity to save NCR President Kimball from assassination (or let it happen, or do it yourself, if you so desire). But protecting him, as we did, will take care of the optional task outlined above, getting one-third of this quest of the way right away. In your interactions with Yes Man around that time, he should have handed over an Override Chip that he wants planted at a lightly-guarded NCR locale known as El Dorado Power Station. El Dorado Power Station is located on the eastern side of the Mojave Wasteland, due west of the Hoover Dam. Black Rock Cave is near to the south, Black Mountain to the west, and Vault 11 and the El Dorado Dry Lake to the east.

When you arrive at El Dorado Power Station with your Override Chip in hand, chances are you won't find any NCR soldiers outside guarding it. But you most certainly will find a small detachment within the building. Even if you're friendly with the NCR, as we are, you will not be welcomed here no matter what. The best way to deal with this problem is to simply crouch down in front of the entrance to the power station, where you can activate a Stealth Boy from your inventory and enter the building incognito-like. Doing so will allow you to brush past the unaware NCR guards within, where you can plant the Override Chip into the NCR computer ahead and on your right. This will reroute power from HELIOS One, as Yes Man wanted. That's the only task this mission required, so you're almost done.

With the Override Chip planted, and with the NCR none the wiser, you can quick-travel back to Freeside, and enter the New Vegas Strip once more. As usual, head over to the Lucky 38 Casino, and back up to the penthouse, where you'll find Yes Man exactly where you left him, affixed to Mr. House's old supercomputer. Let him know that the deed is done (he'll already know, naturally). It's at this point that Yes Man will alert you that the endgame is nigh. The Legion has amassed a huge force east of Hoover Dam, and they're ready to attack. Yes Man will let you know your various options, and that you don't necessarily have to make a decision one way or another as to what you'll do. Hopefully, though, all of your ducks are in a row, as you should have plenty of back-up from various groups if you followed our instructions earlier in the walkthrough. Yes Man should also prompt you that you're nearing the point-of-no-return in Fallout: New Vegas. So if you have other tasks to complete -- exploration, side quests and the like -- you'll want to get to it before accepting Yes Man's plea to finish the fight, one way or another.