No good...New build won't post

[BloodyMercy]

So I started with a ASUS M4A79XTD EVO v1.02 with a AMD Phenom II X4 965 BE. Crucial 10600 DDR3 and a Diablotek 550w PSU. Hooked it all up last night and nothing... The onboard LED comes on to indicate power but the Master power switch doesn't affect anything. The only way I can get the system to shut down is by killing power to the PSU. No fan action from the CPU or the chassis fans, I've seen several posts about a BIOS update being needed but how can you update a BIOS if it won't even boot that far. Any suggestions?

Edit: I tried "breadboarding" just CPU and mobo, and the system speaker doesn't even fault w/ no RAM.

 

[MindoverMaster]

Try taking it out of the case, lay it down on some cardboard. Try flipping it on with a flathead screwdriver, touching the two pins that turn it on. Sound like something is shorting.

 

[Slaymate]

Your problem is the Diablotek power supply, I'll bet money on it.

Here's a link to a Diablotek 650w power supply review, there's no reason to expect the 550w unit to be any better.

Diablotek PHD650 650W Power Supply - Diablotek PHD650 650W Power Supply Review | [H]ard|OCP

 

[BloodyMercy]

So even though the onboard LED is showing power it's not sending a signal back or what? I guess I don't follow completely, I always thought power was power...

That was definitely a horrible review, wish I would have researched that better...live and learn right? Is it too much to use my old pc PSU in lieu of them shipping out a new one (diff brand obviously), I believe the wattage is the same. It is about 6 y/o now..

 

[MindoverMaster]

It gives you power, but not enough to hold a charge.

 

[Slaymate]

The LEDs on the motherboard are powered by the +5v sbv (stand by voltage). This voltage is never stressed and will usually work when nothing else does.

A power supply supplies +12v, -12v, +5v, +3.3v and +5vsb. Just because a few lights are on or a fan spins doesn't mean the power supply is good.

Your old PSU probably doesn't have the correct connectors.

 

[BloodyMercy]

Surprisingly enough my old PSU did have the proper connectors, I followed MoMs' advice and still no dice. At that point I called ASUS directly went through a couple of steps with him and it was determined the mobo is doa. Even while breadboarding I don't get any action from any fans including the PSU... =( So contacting the seller now for a new one...

 

[BloodyMercy]

So I had the RAM in the wrong freaking slot...what a dope. Grr one board RMAd, for no reason. Hopefully they still credit the purchase...

 

[Jupiter 2]

It doesn't mean that the mainbaord is fried, just put the ram back into the right slots then try again.

 

[MindoverMaster]

He did put the RAM in the correct spot.