New build won't start. Lifeless.

Hi, put together a new rig today,
When I hit the power-button nothing happens, no lights or beeps. The PSU doesnt make any noise when I plug it up.
Connected everything according to the motherboards instructions and guides.

However, the motherboard has a 8 pin cpu connector, while my CPU only has a 4 pin connector. I've read that it should work with just a 4 pin (The manual doesnt go into depth with any of this).

Tried everything that the troubleshooting guide says without improvement.

Ace ATX V.2.2/P4 500W (this was included with the case)
Gigabyte GA-MA785GMT-UD2H µATX,Radeon HD4200,AM3
AMD Phenom2 X4 945 3,0Ghz
Corsair 6GB DDR3 1600MHz
XFX PCIe HD5750 512MB XXX

Frustration is kicking in :pfff:

Any ideas?

Cheers

Reply to ergotism

Actually it could be the missing p4 power. I would regard the PSU that comes with a case with suspicion.

Is the PSU turned to the right power? I mean 120 vs 240V? Sometimes PSU's are delivered with the wrong setting...
Also, do you know how many amps are available on the 12V rail?

If the memory is triple channel, the AMD cpu (and mobo) will only run in dual channel.

Message quoted 1 times

Reply to buzznut

This happened to me when I built my first system. I was at witt's end trying to figure out WTF! Make sure you install stand-off's EVERYWHERE on the case under the motherboard so that not one part of the mobo is ever close to the case. Most case's have an "A" or a letter in a box signifying where to put the stand-offs. If you don't know what they are, the stand-offs are the little "female" screws that are gold in color. I hope this helps, and GOOD LUCK!

Message quoted 1 times

------------------------------ LG 47LG70 SCARLETT - Definitive Technology Mythos Three 5.1 Surround - 2x Sapphire 4850 CrossfireX

http://valid.canardpc.com/cache/banner/1220539.png

Reply to kashtr0_305

buzznut wrote :

Actually it could be the missing p4 power. I would regard the PSU that comes with a case with suspicion.

Is the PSU turned to the right power? I mean 120 vs 240V? Sometimes PSU's are delivered with the wrong setting...
Also, do you know how many amps are available on the 12V rail?

If the memory is triple channel, the AMD cpu (and mobo) will only run in dual channel.

Thats what I'm suspecting as well.

There doesn't seem to be any switch on the PSU

Not sure I'm copying correctly, but I'm trying with only one ddr in without luck.

Message edited by ergotism on 05-14-2010 at 10:23:58 PM

Reply to ergotism

kashtr0_305 wrote :

This happened to me when I built my first system. I was at witt's end trying to figure out WTF! Make sure you install stand-off's EVERYWHERE on the case under the motherboard so that not one part of the mobo is ever close to the case. Most case's have an "A" or a letter in a box signifying where to put the stand-offs. If you don't know what they are, the stand-offs are the little "female" screws that are gold in color. I hope this helps, and GOOD LUCK!

Yeah standoffs are like they should and motherboard is correctly assambled, thanks anyway.

Reply to ergotism

Just make sure u install stand-off's in every hole under the motherboard.

------------------------------ LG 47LG70 SCARLETT - Definitive Technology Mythos Three 5.1 Surround - 2x Sapphire 4850 CrossfireX

Reply to kashtr0_305

look at this http://www.tomshardware.com/forum/ [...] o-problems

Reply to samdsox

I am so frustrated right now,
Went to the local computershop and bought a new PSU and connected everything. Nothing.

Anybody have any clues?

Reply to ergotism

What do you mean your cpu has a 4 pin connector.. What exactly are you trying to say?

Just looking at your mobo picture you should use the 20+4 pin main connector. And the 8pin connector near the socket. If your power supply did not come with the 8 then you got the wrong psu.

I can't find any info on the psu's but post up a pic of what kinds of connectors it has. Obviously you should check the voltage setting of 120v240 but other then that even if the 12v rail did not have a high enough amperage your computer should still start.

Which psu did you buy from your local shop, post up a pic of it and the connectors.

And I hate to ask but did you connect the power button on your case?

Message quoted 1 times

Reply to fastx21

fastx21 wrote :

What do you mean your cpu has a 4 pin connector.. What exactly are you trying to say?

Just looking at your mobo picture you should use the 20+4 pin main connector. And the 8pin connector near the socket. If your power supply did not come with the 8 then you got the wrong psu.

I can't find any info on the psu's but post up a pic of what kinds of connectors it has. Obviously you should check the voltage setting of 120v240 but other then that even if the 12v rail did not have a high enough amperage your computer should still start.

Which psu did you buy from your local shop, post up a pic of it and the connectors.

And I hate to ask but did you connect the power button on your case?

The mobo has a 6pin 12v power connection and the other psu only had a 4pin. However, this clearly wasnt the solution since the new psu has a 6pin, and it didnt work out.

The power button waaat? Do I have to change anything on the front of the case (where the powerbutton is)?

Reply to ergotism

The power button has a cable to plug into the motherboard i think thats what Fast was getting at, is it plugged into mobo ok? 6pin connector should be for your graphics card, you should plug the 24/ 20+4 pin into main socket on mobo, only one it can go in tbh, then you should have an eight pin/four plus four/four only connector, thats for the cpu power, if your mobo needs 8 pins you need a psu with an eight pin or 4+4 connector, 4 pin only wont be enough

Message quoted 1 times

------------------------------ Once you start watercooling, you are almost automatically inducted into the modding circles as well, because theres rarely a 'from the box, fits everyone' solution, its your ingenuity and resourcefulness that makes it all happen,
Reply to motopsychojdn

motopsychojdn wrote :

The power button has a cable to plug into the motherboard i think thats what Fast was getting at, is it plugged into mobo ok? 6pin connector should be for your graphics card, you should plug the 24/ 20+4 pin into main socket on mobo, only one it can go in tbh, then you should have an eight pin/four plus four/four only connector, thats for the cpu power, if your mobo needs 8 pins you need a psu with an eight pin or 4+4 connector, 4 pin only wont be enough

Yeah the PWR SW cable is connected to the mobo.
Ops sorry, I ment 8 pin, not 6.
Thats right, thats why I bought a new psu with 4+4 pins, but still no luck in getting the system running.

However, I opened up the front of the case and the powerbutton is really weird, there seems to be no "connection" on it, just a button that goes in without hitting anything. (I'll try to upload some pics in a sec)

Message edited by ergotism on 05-15-2010 at 05:54:26 PM

Reply to ergotism

Alright here's two pics of the powerbutton, first is unpressed and the second is when I push the button. All that happends (at least what I can see) is that the three metalsticks goes "out".

http://dl.dropbox.com/u/326587/btn%20off.JPG

http://dl.dropbox.com/u/326587/btn%20on.JPG

Message edited by ergotism on 05-15-2010 at 05:45:14 PM

Reply to ergotism

Do you have a spare power switch anywhere? could try swapping it over just to see if you can power up off that one, failing that, I'd remove your existing switch from the panel, (the two little tabs keep it in place) and see if physically pressing the switch works, maybe your powerbutton isnt hitting the switch?

------------------------------ Once you start watercooling, you are almost automatically inducted into the modding circles as well, because theres rarely a 'from the box, fits everyone' solution, its your ingenuity and resourcefulness that makes it all happen,
Reply to motopsychojdn

I can't see what you're trying to say from the pics but if you had a spare connector (two pins) just connect that to the mobo and short it for a sec to see if comp turns on.

And obviously if you didn't have a spare connector I wouldn't recommend this but try shorting the + and - pins on the mobo very carefully with a small screw driver. That will act as the pushing of the power button.

edit:

Ok I see what you're trying to say with the power button. It's just a plastic (looks like fake chrome) mometary push button that's spring loaded in the housing. I can imagine there's two sides in there and that's what the wires should be connect to. If you want to test if the button itself is good grab a mutlimeter, set it to resistance (ohms) and connect it to the two pins off the power switch. Then see if resistance jumps to infinity to zero when you press the button.

Evidently you can also use the reset button to test your mobo. Switch = switch with a different name on it.

Message edited by fastx21 on 05-16-2010 at 05:25:07 PM

Reply to fastx21

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