Help Please! Power Supply won't come on

Yes, it must be physically connected to the MB before it will turn on. There are PS testers which when hooked up will allow the PS to come on, and they are rather inexpensive.

As you should be worried, what led you to believe that you were capable of working on a computer.

Hmm, sorry but this is my first ever built, and I apologize for asking a dumb question. That does not make uncapable to touching the computer as I am C#.net developer for living. I just didn't know. Anyway I have connected everything on the computer and power still is not coming on. Not a click is happening! I am starting to think that the power supply should have come on when I first installed it and without having being connected to the mobo, does anybody know if it should come on without connection to the mobo or not, because it seems that i have a defective PS.

The only way to get an ATX power supply to turn on without the motherboard (without a tester) is to put a piece of wire into the green wire on the 20/24 pin connector and short it to the nearest black one under it. The green wire is roughly in the middle.

DO NOT do this when the power supply is plugged into the mains. Short it first. Then plug it in.

There are guides floating around google if you want a better explanation. If you're not sure, don't do it.

I inserted a pin into the green and black holes and the power supply came on, but when I plug the rest of the wires into the mobo. the power does not come on. I have a gigabyte mobo ds3r. I have two power supplies too 700w and 800w. I don't live in Redmond, lol.

Um, is the swich on the PSU ON?

Couldn't help it either

What brand PSU is it?

EVERYONE LAY OFF THE NOOB, EVERYONE WAS THERE ONCE.

I am still on. I have
Q6600
8800GTS
150GB Raptor
abs 800w power supply
gigabyte ds3r
patriot performance 2 GB RAM

I would never consider them, I would rather stick a pencil in my eye, but they could fix it. I don't know how much they cost. Not to be a prick, but did you sit down and take your time reading the manual? Fixing this is going to require you removing the mobo and setting it up outside the case on a piece of cardboard etc. with just the CPU, RAM and VGA and booting. At least try that before you go to the Geek Squad. Also as was mentioned, I think, the PSU tester is relatively cheap. Also If you could localize the problem they could test the part.

Edit: Read jsc's trouble shooting guide posted earlier.

Getting this to work may take some investment in time from you, but it will be worth it.

That PSU has some bad reviews on Newegg. 3 DOA, or almost DOA, and 1 with bad rails, out of 9 reviews. That's too many. Try another PSU, beg borrow steal, but try another PSU.

Edit: Understand, I don't place a large amount of weight on Newegg reviews but 4 out of 9 is just too many.

Well, I did go to best buy and got a rochetfish PSU, installed it and got the same problem. I will have to take it out of the case like you said and test it. hopefully it will pay off.

Thanks, I did what you told me to. I took out the mobo and GC outside the box. It's giving me a continuous long beep. the beep doesn't stop. this is what the manual is saying:
continuous long beeps: graphic card not inserted properly
so I reinserted the graphic card, and I still get the same beep.

I got to work finally outside the case. I am putting it in the case right now. I will let you guys know what happens. thanks

ok, I finally got it to work in the case. I took the SYS_FAN 1 4 pin cable out of the mobo powered it on, and all of sudden...I can see the bios set up on the screen, WOOOOOOOOOOOHOOOOOOOOOOOO. Weird problem non the less or it's probably just ME. Anyway I am happy to see it work nontheless and thanks for everyone's help.

Good deal, I was afraid this was going to be lengthy. What system fan has 4 pins? If it is a 3 pin fan then it needs to be plugged into pins 1,2 & 3. If it is a 4 pin, then throw it away and get a new one, they are cheap. I like the antec tricool, they have a slide switch to adjust the speed and they plug into the PSU.

No problem, happy to see a resolution. A lot of people complain about fan noise, I prefer to have them running at max unless the noise bothers me. That's why the Antec tricool are nice because you can set some of them on medium unless you need the extra cooling, then you can turn them up.