What to do after building a new system?

Feb 1, 2015
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So I've just built a new system. What are the tests and benchmarks and other fun stuff I need to do to make sure everything works and (barring catastrophic failure of some kind) will continue working for a long time to come?

(also, how long should those tests be run for?)
 
Feb 1, 2015
60
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Just to confirm, this is the one I SHOULD use right? Like, if I use this one my i3 will survive the wrath of prime numbers and stuff?
 
Feb 1, 2015
60
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4,640


How long should I run Furmark and Memtest?