Boots on then off in 1 sec

OceanView

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Apr 3, 2011
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Just put together my system but it won't turn on.
When I press the power button, the fans on the case and the CPU all come on but then they all stop as if the system is shutting down.
The power button stays lit on the motherboard but nothing further.
I can't hear any sound on the HDD when I start it.

Here are my specs.

i7 -3770K
Gigabyte GA-Z77X-UP5 TH
Corsair Vengence 8gb (1 stick)
WD Blue 320GB HDD
No Video card, using on board DVI connection
Corsair 650 watt PSU

I haven't done anything other then putting it together.
Not sure if I didn't connect everything correctly or if there is a hardware failure.
I'm just trying to get the system to turn on before OS installation.

Any Ideas?
 

mmphoneman

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Feb 8, 2013
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This is always hard,but here goes. I assume you installed the memory in the proper slot? The mem is compatible w/the MB. The case wasnt mentioned but there are connections that let the MB "know what's going on" i.e. power button pushed. etc.,,Yoiu also didn't mention HDD SATA or IDE, so assuming SATA. Hopefully processor was installed w/o a hitch and no static electricty was incurred. Thermal grease? The proper stand offs were used on the case for the MB, if not possible shorts could occur! Need more info. Good Luck!!
 

OceanView

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Apr 3, 2011
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Thanks mmphonemar for responding.

Here are all the answers to your questions.

Memory installed in slot 1
Memory was included with the motherboard. Here are the specs:
Motherboard: 4x240pin DDR3 1600/1333/1066
Memory: DDR3 1600 (PC3 12800)

Case is Corsair Carbide series 200R
Not sure what you mean by "Know what's going on" Can you elaborate?
The motherboard does have an LED display that lights up numbers but I can't get to that part as the
system shuts down.

Sata HDD and yes I connected both sata cable and power cable.

CPU - I grounded myself every time I touched an component so I dont think I messed up here.
Thermal paste was used.

What do you mean by Proper stand offs? I hope I didn't short it. Gawd I'm worried now.




 

OceanView

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Apr 3, 2011
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DING! DING! DING!!!!!

It was the CPU Power connector.
I wasn't aware there was one for my MB.
It's been a while since I built a system and the newer MB's are a bit different.
In any case the system is up and I'm installing Win 7.

Thanks to you and all others that replied for your help!
 

OceanView

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Apr 3, 2011
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Double Post