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Windows 7: Motherboard powers off after Windows shutdown or Power Off

05 Jan 2014   #1
F1Racer

Windows 7 Ultimate 64-bit
 
 
Motherboard powers off after Windows shutdown or Power Off

I have just built a brand new system (specs below). I installed a new Windows 7 (will be migrating my old one over later if the force is with me) and I noticed that when I shut down Windows, the computer not only powered off but all the lights on my motherboard went out too. I was unable to switch on the computer with the power button.
The only way to power it back on was to switch off the PSU for a couple of seconds, power it back on and then the computer would power on with the switch as normal. When it is switched on it is perfectly fine and has been running overnight without issues.
All parts are brand new.

Intel Core i7-4770K 3.50GHz (Haswell) Socket LGA1150 Processor
Gigabyte Z87X-UD3H Intel Z87 (Socket 1150) DDR3 ATX Motherboard
Avexir Core Red Series 16GB (2x8GB) DDR3 2133MHz Dual Channel Memory Kit - Red Light
Gigabyte GeForce GTX 780 WindForce 3072MB GDDR5 PCI-Express Graphics Card
Samsung 750GB SSD 840 EVO SATA 6Gb/s
3 x Seagate Barracuda 2TB 7200RPM SATA 6Gb/s 64MB Cache HDD
Corsair RM Series RM 850 '80+ Gold' 850W Power Supply


My System SpecsSystem Spec
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05 Jan 2014   #2
linnemeyerhere

Microsoft Community Contributor Award Recipient

Windows 7 Ultimate 64
 
 

F1Racer,
Welcome to SF. I would double check you front panel leads it sound like you have some in the wrong positions.


Motherboard powers off after Windows shutdown or Power Off-hpim1215.jpg


My System SpecsSystem Spec
05 Jan 2014   #3
DocBrown

Win7 Enterprise, Win7 x86 (Ult 7600), Win7 x64 Ult 7600, TechNet RTM on AMD x64 (2.8Ghz)
 
 

Double check your MB header connections. Sometimes you can get one wrong


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Motherboard powers off after Windows shutdown or Power Off-mb_header_panel.jpg  
Attached Images
Motherboard powers off after Windows shutdown or Power Off-mb_header_conn_leads.jpg Motherboard powers off after Windows shutdown or Power Off-mb_header_connectors.jpg 
My System SpecsSystem Spec
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05 Jan 2014   #4
carwiz

Windows 7 Pro-x64
 
 

I heard an echo. :)
My System SpecsSystem Spec
05 Jan 2014   #5
DocBrown

Win7 Enterprise, Win7 x86 (Ult 7600), Win7 x64 Ult 7600, TechNet RTM on AMD x64 (2.8Ghz)
 
 

Great Minds think within seconds of each other
My System SpecsSystem Spec
05 Jan 2014   #6
linnemeyerhere

Microsoft Community Contributor Award Recipient

Windows 7 Ultimate 64
 
 

Sorry Doc it seems that we are of like minds......I always want to be in good company !
My System SpecsSystem Spec
05 Jan 2014   #7
F1Racer

Windows 7 Ultimate 64-bit
 
 

Sorted it guys !! I checked the header cables and they were all ok so then I checked the main power cable that goes from the PSU to the motherboard and saw that, for some reason, it was out by about 1 or 2mm. I pushed it in and now all is well.

I wouldn't probably have spotted it if you hadn't mentioned the header cables.

Thank you so much !!
My System SpecsSystem Spec
05 Jan 2014   #8
linnemeyerhere

Microsoft Community Contributor Award Recipient

Windows 7 Ultimate 64
 
 

Wait...wait.....wait for that click, there we go ! Good find.
My System SpecsSystem Spec
05 Jan 2014   #9
matts6887

Windows 7 ultimate 64-bit
 
 

Yep!....if in doubt...check the connections!
My System SpecsSystem Spec
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 Motherboard powers off after Windows shutdown or Power Off




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