Power Flickers but computer stays on?

[RobbieRobb]

not really a concern of mine I was just wondering how does that happen. Everything in my house goes off when the power flickers other then my computer. It just really weird. Also my computer is not hooked up to a battery backup

 

[Asuveroz]

What PSU do you have?

 

[RobbieRobb]

Raidmax 850ae
http://www.amazon.com/Raidmax-ATX12V-EPS12V-Active-RX-850AE/dp/B004M4N01Q/ref=sr_1_1?ie=UTF8&qid=1388174695&sr=8-1&keywords=raidmax+850