This will allow you to place the Override Chip into the system, which will allow Yes Man to take over the NCR computers. Once inside, there should be no one else to deal with, so stay crouched (and thus hidden), and approach the computer terminal at the back end of the room. The two heavily-armed guards in front of that room will certainly turn hostile on you if you just waltz in there, so you're going to have to employ another Stealth Boy to get into that room without alerting them. At least, not yet (if ever, though we definitely intend to later on). The thing is, since you're friendly with the NCR (if you're following our walkthrough), you don't want to mess up that relationship. Eventually, though, you're going to need to get into that control room.
