Basically, the latest delivery unlocks all securitrons' main weapons: missile and grenade launchers.
Supposing one did hand over the chip, there's an automatic basement scene where House sets up a demonstration.
[There's also a 9mm Pistol and Submachine Gun on the observation table, but one must take them before the demonstration ends; this place can't be revisited.] After returning upstairs (automatically), the quest will complete once House finishes talking, with the 600 XP reward for prompt completion.
This is fine and dandy if one's planning on helping House, but should one cross him later, those mechs can deliver a whole lotta hurt...
Choosing to open the antechamber (1) fails the current quest and all House quests by extension, although only THAW1 gets a notification (2) turns present securitrons hostile; Strip securitrons remain normal (3) prevents further communication with Mr. Through the false wall, hack another Hard computer to open the control room's elevator.
House at his main terminal (all communications with him will operate this way). Near his main comm terminal, hack the Hard computer to open a false wall.
Afterwards, pick any option on the PC to start and fail "The House Has Gone Bust!
In either case, the next stop is Fortification Hill, Caesar's Mojave stronghold -- Benny will have gone here if he flew the coop, and House will send the player here even if he died.
One can still use the presidential suite and all its upgrade functions. House has a job for the player -- more specifically, a continuation of the Courier's initial hire: recover the Platinum Chip that Benny, his associate, willfully stole.
" quest -- although it's more of a death knell alarm than a proper mission.
The mission is to infiltrate the derelict weather station at Caesar's fort, and task that overlaps with a great deal of "Render Unto Caesar," which will have started earlier.
Note that companions have to be dismissed before talking to House -- a small stipulation.
House is awaiting one's presence in his casino, the monolithic Lucky 38.