Are you using any mods? if so disable them and see if it still crashes. Also you say that your computer is new, are you sure that all the drivers are up to date, specifically the graphics dirvers.
Also on a side note, there is already a patch on the way that will hopefully fix most of the bugs and crashes people are having.
Hope this helps.
Yes all Drivers are up to date, I use Steams Driver Utlity to check whether my video drivers are up to date. I use hardly any mods, just 1 for perk every level and a few quest mods. I used to use the New Vegas community bug fix patch but stopped after I started getting the errors. This didn't help.