Psu burn out when mobo powered on

i am gunna need some help guys, i had a warlock 1100w power supply, using a cor i7 build with the evga classified mobo and a 295 gtx made by asus, a xonar asus sound card,asus blueray drive, 12 gigs of ddr3 g skill, and a stock cpu cooler(oh and a 1tb caviar black

everything was set up perfectly (graphics card may not have been plugged into psu) i checked all the cords 3 times over, everything was fine, i powered on thepsu, the blue leds lit up in it, i pressedd clear cmos, and the motherboards awesomeblue leds were lit up, i presseed power and........
pop power supply sparks or somethin on theinside, the led goes out, and everything loses power,the surge protector i was using is still in tact, and the outlet works, wat went wrong, what might be daMAGED, and how can i fix this ? please help - D

the psu can no doubt power my system, but i geus wat you are saying is it is faulty, i will rma it and try a new one, although what if teh new one blows out also?

i wouldn't try a new one, those apevia PSU's are junk, get a good brand like corsair, seasonic, pc power & cooling, enermax

really all you would need is a Corsair 750TX

first of all, i payed for it, and i dotn wana pay for a new one lol, so ill try and rma it, and no the powersupply is destroyed,it wont turn on at all, therefore nothing will turn on. this is my first build btw**
also i think ill just rma it and if it doesnt work i gues i will buy a corasair, but i need a find a cheaper i7 1100 wat powersupply with 2 6pins and 2 8 pins, newegg links would be helpful
im having a pro technician come over to make sure nothing else was damaged, so i dont go and fry another powersupply if my mobo or cpu are f***ed up
excuse my terrible spelling im using a crappylogitech keybored, rather than my usual razer mirrored keyboard

any other opinionsare apreciated