SOLVED: Desktop Not Turning on - Just installed New PSU

[Thannatos]

So I just swapped out a dead PSU with a new OCZ ModXStream Pro (http://www.newegg.com/Product/Product.aspx?Item=N82E16817341018).

I took pictures as I disconnected and removed the old PSU to make sure I didn't forget anything. Then I went in and connected the new PSU.

I took off my heatsink because I couldn't connect the 2x2 12V in with my big hands. Then I saw some dust near the processor, so I removed it and blew the area free of dust. Then the processor, 2x2 12 V connector, and heatsink back on.

Then I moved to the 20+4 main connector into the motherboard. I connected power to my 4 HDDs and DVD drive. Then I connected the 2 power connectors to my graphics card. And finally I reconnected the front audio because it was in the way.

I tried power on my box and nothing. Nothing happens at all. :confused:

Here's the manuals I've been looking through to troubleshoot...
Motherboard Manual (http://download.gigabyte.ru/manual/motherboard_manual_ga-p35-ds3r(ds3)(s3)_2.0_e.pdf)
Tower Manual (http://www.antec.com/pdf/manuals/P182manual.pdf)

I checked and made sure the power button was still connected to the motherboard. It is. I check my surge suppressor to make sure it was working. It is.

Can you guys/gals think of anything I messed up? Anything else I can do to troubleshoot this? Thanks in advance, and I'll rep for help.

[BayArea]

Could it possibly be a DOA psu? Do you have an extra one to try?

[prozac4312]

Sounds like you've got a short somewhere.

Try another PSU in your new build, or the new PSU on an old one.

[Thannatos]

I don't have another PSU, besides the dead one. Also, I don't have another desktop available to test on. Everyone close to me that I know has a laptop/Mac. Should I go get a multimeter and check voltages on the new PSU?

[fenderman]

I don't have another PSU, besides the dead one. Also, I don't have another desktop available to test on. Everyone close to me that I know has a laptop/Mac. Should I go get a multimeter and check voltages on the new PSU?
you can test it with a paper clip. to short the power on pins. search youtube for the procedure. This will tell you if the unit is dead or not, but wont tell you if its faulty. Btw is there a power switch on the PSU? a voltage setting?

[slapshot136]

did you turn on the PSU from the switch on the back of it?

does the "ready/standby" light on the motherboard turn on?

[Thannatos]

I flipped the switch on the back of the PSU and pushed the power button.

I saw no ready/standby light on the motherboard, so if there is one, it's not turning on. I'll look through the manual to see where it is to be certain.

[slapshot136]

I saw no ready/standby light on the motherboard, so if there is one, it's not turning on. I'll look through the manual to see where it is to be certain.

are you sure you had a dead PSU and not a dead motherboard?

I would also try it with just the bare minimum connected (i.e. no graphics card/hdd) just in case there is a short somewhere within those components

[Thannatos]

are you sure you had a dead PSU and not a dead motherboard?

I would also try it with just the bare minimum connected (i.e. no graphics card/hdd) just in case there is a short somewhere within those components
The PSU was bad for sure, but the surge that occurred in my house may have fried the motherboard as well. I was going to start off with the power supply because it was easier and cheaper to fix. I wasn't exactly sure how to troubleshoot the motherboard.

Just tried the bare minimum as you stated. No power still.

[Thannatos]

Ok. I just took everything apart. Took pics to make sure I didn't mess up again and replugged everything in again.....AND IT WORKS. Agh!!!! WTH...loose connection or something?

[larrymoencurly]

Ok. I just took everything apart. Took pics to make sure I didn't mess up again and replugged everything in again.....AND IT WORKS. Agh!!!! WTH...loose connection or something?
I'm glad it's working. Connectors can oxidize and won't conduct unless the contacts rub against one another to clean themselves off. Another possibility is a bad solder joint in the PSU, which could have broken because a heavy transformer or heatsink jiggled from rough handling during shipping.

[prozac4312]

Ok. I just took everything apart. Took pics to make sure I didn't mess up again and replugged everything in again.....AND IT WORKS. Agh!!!! WTH...loose connection or something?

You had to have had a short somewhere...did you make sure to use your case's standoffs before installing the motherboard?