how to troubleshoot a motherboard

[mayabit]

Hello,

I'm trying to put together a new system. These are the components I've gotten together:

GIGABYTE GA-970A-D3 AM3+ AMD 970 SATA 6Gb/s USB 3.0 ATX AMD Motherboard

Cooler Master Elite 460W ATX +12V V2.31 SATA, PCI-E Power Supply RS460-PSARI3-US

AMD Phenom II X4 965 AM3 3.4Ghz 512KB 45NM 125W 4000MHZ

Crucial Ballistix Sport Very Low Profile 16GB Kit (8GBx2) DDR3-1600 1.35V UDIMM 240-Pin Desktop Memory Modules BLS2C8G3D1609ES2LX0

PNY NVIDIA GeForce GT 620 1GB GDDR3 VGA/DVI/HDMI PCI-Express Video Card VCGGT620XPB

And all this stuff sits in the following case:

Nzxt Technologies Phantom with Green Trim (Green LED) Enthusiast Full Tower Case.

The damn thing won't do anything. The fans start for nearly a minute, then then they stop I didn't plug in any keyboard or mouse, so I was expecting some beeps. Nothing.

I thought that maybe I was shorting the board, but it get the power turn off whether the board is in the case or not.

Can anyone help this helpless newbie? Thanks!

Maya

 

[rolli59]

Try with keyboard but the PSU is not the best even it should be enough.

 

[mayabit]

Thanks, Rolli59! I'll give it a try. I'll try anything at this point. Shouldn't the audio beeped a few times to let me know the system was hungry for delicious keyboard though?

BTW, I tried a 600 watt power supply (Cooler Master) that did the same thing, i.e., turning off after about 5-10 sec. That ps only has a 4 pin CPU power supply plug instead of the 2 4-pin plugs in the ps that I listed in the original post, and I wondered if that was the reason for the shutoff: either too little power on the first ps vs not enough pins in the plug on the second.

Also, did I mention that this is my second Gigabyte board? I've been getting a lot of eye rolling when I say that I got a Gigabyte board instead of Asus, or even ARock.

Thanks!

Maya