1. CPU is a component called the Central Processing Unit inside a computer. You don't hook anything up to it. It bugs me when people misuse the term.
2. Supposed to.
3. Use a descriptive title for your post. "Neeeeed Help" isn't very helpful later when searching the forums.
CPU is used to refer to the component as well as the main system unit itself. We know what you meant so no worries... As others have said NO do not run the update.