Newly Built Computer Will not Turn On

[Aftersight]

Yeah, my freshly built PC will not turn on, it's my first time and I am afraid one of my parts has gone bad. The building experience was smooth, except for the damn Hyper 212 heatsink that refused to screw into it's sockets. Well anyways, everything has been plugged in, the power supply switch on the "Line", and even checked to see if I was missing anything but my computer will not turn on. There's not even a light, and I don't even think power was running in the system at all, no sounds, no fans, nothing. I'm really stumped and have tried to find a solution on Google. I'm scared that it might either be the motherboard or the cpu because I was fussing with the heatsink so much or it might even be a bad power supply I don't even know. I've tried turning it on with different memory configs and even removed the video card so I'm pretty much clueless. Please help me figure out what the heck is wrong.

Specs:
MSI P67A-GD65 Mother Board
i5 2500k
AX750 Power Supply
GTX 560 Ti
8gb (2x4gb) Corsair Vengeance RAM
NZXT Gamma Classic Case
WD Caviar Black 1TB Hard Drive
Lite-On Lightscribe DVD Writer
Hyper 212 Heatsink

[Adappy]

No sounds, fans, or beeps means it's power related. Either your power switch isn't working, the MOBO isn't sending the "turn on" signals correctly, or your power supply is a dud.

[Aftersight]

well I don't have a MoBo speaker so I don't know if its not beeping (
Is there a way to test your power supply to see if its working?

[ribz]

It might be worthwhile to invest $2.00 and get a motherboard speaker as it tells you so much when booting.

Also, you can test your PSU by just plugging in a fan directly and seeing if it runs.

[Aftersight]

directly into the power supply? how would I do that?

[elgato]

It might be worthwhile to invest $2.00 and get a motherboard speaker as it tells you so much when booting.

Also, you can test your PSU by just plugging in a fan directly and seeing if it runs.

Testing the PSU is a great. But also check to make sure you really do have all the power cables plugged in. I know on my MOBO I have to have two separate connections plugged in for it to work.

[KCguy]

well I don't have a MoBo speaker so I don't know if its not beeping (
Is there a way to test your power supply to see if its working?

Sure can. Use a voltsmeter and it'll determine whether it's fine or it needs to be replaced. But being that it's a brand new computer chances are you didn't hook something up right to your motherboard.

[ribz]

directly into the power supply? how would I do that?

Most case fans come with a converter from 3 pin to Molex which can be plugged into PSU's directly. Do you have one?

If not, a voltmeter might be your option. :/

[Aftersight]

Testing the PSU is a great. But also check to make sure you really do have all the power cables plugged in. I know on my MOBO I have to have two separate connections plugged in for it to work.

I'm sure I have everything plugged in, the optical drive and hdd both plugged into the power supply and mobo, the 24pin mobo connecter the 8 pin cpu connecter, all front i/o ports are connected, gpu is connected also. i've got my system out of a case right now so I could make sure everything was plugged in right

---------- Post added 2011-04-14 at 12:41 AM ----------

well I connected my case fan to my power supply, and there is still no juice coming out of that thing.
before I RMA it, how could I make sure my other parts are working correctly, more specifically my cpu, mobo, and video card.

[ribz]

Really unfortunate to hear your AX750 came to you broken.

As far as I know, there's no real way to test out if your other components work if you have no power going to them. Do you have another PSU lying around somewhere to test with?

[Aftersight]

i do actually :P its an EXTREMELY old one though i can't remember the wattage though somewhere around 250-450ish? lol

[Tumble]

This is just a stab in the dark cause im not sure what would actually happen. But is there a fail safe inside power supplys that wont let you run power to the system if you have it selected for the wrong voltage, or what ever it is. I remember seeing a little red switch on my power supply that had two seperate numbers, one for america, and one for Europe/Aus/NZ and possibly china. Like I said, just a shot in the dark.

[SynergySin]

Make sure to review your MoBo manual, one connection not being plugged will mean your system won't start. Before you RMA, make absolute SURE that every power connection is made to your motherboard.

[ribz]

i do actually :P its an EXTREMELY old one though i can't remember the wattage though somewhere around 250-450ish? lol

Haha, nice! Well, a 250W PSU won't power everything, but if it even has 2 6-pin connectors (I think a 560 Ti is 2 six-pin...) try plugging just that in and giving it a whirl. Hopefully the GPU works!

[Jurwi]

It might be worthwhile to invest $2.00 and get a motherboard speaker as it tells you so much when booting.

Also, you can test your PSU by just plugging in a fan directly and seeing if it runs.

No. The one single fan won't necessarily pull enough power to actually "activate" the PSU.

---------- Post added 2011-04-14 at 08:59 AM ----------

Haha, nice! Well, a 250W PSU won't power everything, but if it even has 2 6-pin connectors (I think a 560 Ti is 2 six-pin...) try plugging just that in and giving it a whirl. Hopefully the GPU works!

If his computer is not starting up AT ALL, it can't be because of the GPU. If his GPU was broken, it would start up but deliver no picture on the monitor.

[ribz]

No. The one single fan won't necessarily pull enough power to actually "activate" the PSU.

---------- Post added 2011-04-14 at 08:59 AM ----------



If his computer is not starting up AT ALL, it can't be because of the GPU. If his GPU was broken, it would start up but deliver no picture on the monitor.

You're not reading his post. He just wants to test his other components to see if they're working or if they're broken like his PSU.

[Leifmeister]

check the I/O switch on the PSU!! sometimes it can be the silliest things...when i built my first computer when i was young i freaked when it wouldn't start, took it into a shop i used. Turned out I had been pressing the reset button instead of the power button

[ispano]

Paperclip trick, pull everything off the PSU aside from a fan.
http://aphnetworks.com/lounge/turn_o...aperclip_trick

If it still does not turn on, it's pretty much a guaranteed DoA.

And no, just plugging a fan into it will not cause it to power on. You have to short that wire with a ground to cause it to come on. Hence the paper clip.

EDIT: And for clarification, if all the wires are black. Hold the connector, holes up with the little latch towards you. The Green wire is the 4th from the right. IE just do it like the picture shows.

[Cheezee]

Test the PSU manually before you RMA anything. If it turns on manually then double check your wiring across the main switch pins on the motherboard. If that checks out then use an ohm meter to check the case switch.

[Demoness]

You will likely not get any juice out of your power supply, even if you plug a fan directly to it. The only way I know of bypassing the motherboard power switch is by unplugging the power supply from the motherboard and video card entirely, so it is isolated. Make sure the power switch on the outside of the power supply is turned off. Take a paper clip and bend it to make a small "U" shape. Put one end in the green pin hole in the 24 pin connector, and the other end can go into any black pin hole. This is safe to do, and this will trick the power supply into thinking it is plugged into a motherboard. Now try plugging one of your fans to a molex on the power supply and flipping the switch on. If you have power, the next step is testing your other hardware. One thing to keep an eye out for is MOBO jumpers. These are small plastic clips jumping password pins or CMOS settings. Most of the time they are blue or black. Double check they are all in the right place, because sometimes factories will ship them in a certain position that will not allow the PC to boot. You most likely have a quick fix like popping a jumper over one pin. It is VERY common.
By the way, I am a tech support specialist and build many computers. The power supply trick is safe, and that is actually how I leak test water cooling loops without needing the system to be powered up.

---------- Post added 2011-04-14 at 06:08 AM ----------

Dammit Ispano beat me to it, lol.