New motherboard, processor, problem

[Random]

I bought a computer from Wal Mart about six months ago, due to budget constraints. I upgraded the PSU, the GPU, and finally, I decided I had tinkered enough and wanted to build a new system. I bought an EVGA 680i SLI motherboard, an Intel Core 2 Quad Q6600, and 2 GB of Corsair XMS RAM. I stuffed all of this into a CoolerMaster Cosmos, along with an Antec Basiq 500w power supply, and I harvested the hard drive and optical drive from the old computer. With everything hooked up, I ran into a snag with the power button. I can't use the case's power button to turn on the computer, but the ON button built into the motherboard will turn it on. Besides that, my GPU is a geforce 8600 GT, and there is no onboard video for the motherboard. However, when I do turn the comp on via the mobo's button, my monitor isn't recognizing the DVI input - it'll say "No DVI signal". I'm hoping maybe it's just a wiring problem? Or is my PSU not providing enough power to run my mobo, quad core, optic, hdd, AND GPU?

[ski]

Remove the ON buttons wires from the MB terminals, and short out those same terminals with a flat bladed screwdriver or a similar metal object. If the system fires up, then the ON button assembly is probably bad. If the system does not fire up, then the MB circuitry is probably bad.

WRT the "No DVI Signal" message, reseat the video card making sure it's fully seated, and check that the video cable's connections are securely connected.
If those are ok, then try a different known working video cable.
If no luck, then reset CMOS with either a MB jumper(see MB instructions), or by removing the CMOS battery for at least 30 minutes.
If no luck, then install only the PS, MB, CPU, RAM, video card, monitor, and KB, and see if the "No DVI signal" message still appears on the monitor. If it does not, then reconnect all other components, and see if the message reappears. If it does, then the PS may either be undersized, or a poor quality unit.
If the message appears with only the PS, MB, CPU, RAM, video card, monitor, and KB installed, then the video card may be bad.

[Cricket]

Originally Posted by Random With everything hooked up, I ran into a snag with the power button. I can't use the case's power button to turn on the computer,

Why not? Exactly what is the problem? Doesn't the power button connectors fit the PWR ON pins of the front panel header?

Originally Posted by Random but the ON button built into the motherboard will turn it on.

The motherboard has a power button built onto it? First time I've heard of that.

Originally Posted by Random bBesides that, my GPU is a geforce 8600 GT, and there is no onboard video for the motherboard. However, when I do turn the comp on via the mobo's button, my monitor isn't recognizing the DVI input - it'll say "No DVI signal". I'm hoping maybe it's just a wiring problem? Or is my PSU not providing enough power to run my mobo, quad core, optic, hdd, AND GPU?

Follow the instructions here for the out-of-case-troubleshooter and let us know what happens. You must remove the motherboard from the case when doing this...you're trying to determine if the motherboard is shorting/grounding out to the case.

What exact EVGA 680i motherboard are you using? There are several models.

Cricket

[Random]

Originally Posted by Cricket Why not? Exactly what is the problem? Doesn't the power button connectors fit the PWR ON pins of the front panel header?

Yeah, they do, but they're colour coded and the manual is printed in black and white. I'm pretty sure this is just a wiring problem, however, probably don't have it plugged in the right spot or I need to flip it 180 degrees.

Originally Posted by Cricket The motherboard has a power button built onto it? First time I've heard of that.

Yeah, it's the first time i've ever seen it myself.

Originally Posted by Cricket Follow the instructions here for the out-of-case-troubleshooter and let us know what happens. You must remove the motherboard from the case when doing this...you're trying to determine if the motherboard is shorting/grounding out to the case. What exact EVGA 680i motherboard are you using? There are several models. Cricket

Thanks a bunch, as soon as I get home I'll give that a shot. I'm becoming more and more certain that it's a problem with my PSU or that my GPU isn't seated properly - I hadn't slept in two days before I attempted this build. I'm not currently at home with my computer, but I really appreciate all the help. My exact mobo model is EVGA 122-CK-NF63-TR LGA 775 NVIDIA nForce 680i SLI ATX Intel Motherboard.

[masterg]

actually the power on button on motherboards are common but are mostly found on overclocking boards, boards that ussualy dont get put into a box lol. DFI's have them alot. did you try hooking up the power cord from the psu onto the back of the video card? same thing happened with my room mate and had a high pitched beep and got very annoying

most large video cards like ati x1ks x2ks and the high end nvidias need a seperate powr cord to run

[Random]

Originally Posted by masterg actually the power on button on motherboards are common but are mostly found on overclocking boards, boards that ussualy dont get put into a box lol. DFI's have them alot. did you try hooking up the power cord from the psu onto the back of the video card? same thing happened with my room mate and had a high pitched beep and got very annoying most large video cards like ati x1ks x2ks and the high end nvidias need a seperate powr cord to run

well, geForce 8600 cards don't have a place to plug in a PCI-e power cord from the PSU. My ATI Radeon x1950 did (a six pin connector), but the 8600 runs straight off the motherboard.

[liambl]

Have you tried using the vga out on the video card. masterg I dont believe the 8600gt has a psu power connector.

[Random]

Originally Posted by liambl Have you tried using the vga out on the video card. masterg I dont believe the 8600gt has a psu power connector.

no, i haven't, because both of the outputs are DVI. It came with a DVI to VGA converter, but alas, I'm not home to try it. I'm also not sure if I even still have the DVI to VGA piece, I may have accidentally thrown it out by now...

[masterg]

try to get ahold of a more powerful psu and try it out, i could be that the video card is sucking so much power from the 500watt that it cant display, or that your 500watt isnt truly a 500watt; happened to me when i ran crossfire, i needed more juice to display a picture, but the pc started.

just a thought

[andper10]

I don't think that your PSU is the problem, unless it DOA. I would reseat the video card and try shorting the power pins on the motherboard like mentioned before. It isn't really a good idea to put together a PC when you haven't slept in two days either .