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New motherboard wont power on

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February 13, 2012 3:52:42 PM

Hi I have a new gigabyte mono and a new amd fx 8120 processor and a 2 year old 500 Watt psu ram and CPU and CPU fan installed correctly the front panel connectors installed correctly I plug up the 8 pin 12volt and 24pin connector to.the motherboard I hit the power button nothing happens no noise no nothing is my mono DOA? Thanks

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a c 292 V Motherboard
February 13, 2012 5:57:36 PM

Hi and welcome to Tom's forum.

Can you give us the model of your new mobo and current PSU?
February 13, 2012 6:11:37 PM

740a-ud3 gigabyte diablotek 500 Watt psu
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a c 292 V Motherboard
February 13, 2012 6:20:56 PM

I will assume that your refer to 970A-UD3 because I can't find that model.

Regarding the PSU: If this is your current PSU: http://www.newegg.com/Product/Product.aspx?Item=N82E168...

I'm not sure if that PSU can handle the new system because your need 2x4 PIN power connector..your PSU only have one, test the rig with a better PSU.
February 13, 2012 6:25:07 PM

Oops ya 970a-ud3 gigabyte so that psu can't even power on just the CPU? I'm taking it back to mictocenter and I already knew I needed a better psu cause I have gtx 550ti to power thanks for your help ill let you know what happens
a c 292 V Motherboard
February 13, 2012 7:10:42 PM

psycrow395 said:
Oops ya 970a-ud3 gigabyte so that psu can't even power on just the CPU? I'm taking it back to mictocenter and I already knew I needed a better psu cause I have gtx 550ti to power thanks for your help ill let you know what happens


Correct, you need a PSU with 1x24 PIN power and 2x4 PIN power or 1x8 pin power, the current PSU have the 24 pin power but none of the others two.
February 13, 2012 7:20:37 PM

OK well my old psu had all those you mentioned Guy at computer place said he didn't think it was the board said it was psu but I exchanged the board anyways and bought a 600watt thetmaltake
!