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Windows 7: New PC build restart when shutting down.

29 Dec 2011   #1
computerman

Windows 7 64bit
 
 
New PC build restart when shutting down.

Hello, I recently obtained a nice barebones kit from tigerdirect. Everything works perfectly except for the fact that PC will only restart. When I push the power button on the front panel, or do a soft shut-down through the start menu, Windows 7 will try to shut down like normal. But when it gets to the very end and the screen has dimmed, it bursts on again, as if it's been restarted.

All the "Wake on's" are set to off/disabled in the bios, and I know for sure that the front panel cables are correctly connected to the mother board. My current hardware is:

-MCP61M-M3 Motherboard
-AMD Athlon II Tri-core processor
-OCz Vertex 2 60gb SSD
-diablotek 500 Watt ATX PSU
-4gb RAM Stick x1
-and an nVidia GTX550TI

I have yet to clear the CMOS or re-install Windows 7, any advice?


My System SpecsSystem Spec
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29 Dec 2011   #2
mgp1964

Windows 7 Pro x64
 
 

What do you mean by a "soft shut-down"?
Open the power options menu in Windows 7 and check how the power button is set, sounds like it is set to restart when pushed instead of shutdown.
My System SpecsSystem Spec
29 Dec 2011   #3
badger906

Windows 7 Ultimate x64, & Mac OS X 10.9.2
 
 

Chances are its a power supply fault, if the voltage does not drop enough at the end of the shutdown process, the extra voltage will cause the motherboard just to restart.
it could also be the motherboard not releasing the charge, but only a spare power supply will let you know.
My System SpecsSystem Spec
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29 Dec 2011   #4
computerman

Windows 7 64bit
 
 

A soft shut-down as in hitting the windows key and selecting "Shut-down" as opposed to hitting the power button on the physical PC.

The power supply is brand-new, so I doubt it could be faulty. Although the GTX550TI does require a combination of 2 seperate power cables from the powersupply into the card itself.
My System SpecsSystem Spec
29 Dec 2011   #5
badger906

Windows 7 Ultimate x64, & Mac OS X 10.9.2
 
 

most modern cards require 2 6 or 8 pin connectors.

Just because its new doesnt mean a thing if youve never bought a new computer component thats a dud youve either not bought enough computer parts, or just extremely lucky.

Things do go wrong, and slip pass quality control.

either borrow a spare psu from a friend, or return and swap your current one. Thats the only way you can rule it out.
Its not a windows fault, clicking the start orb and then shutdown only has one possible command, and thats to shut down, you can tweak windows as much as you want but it will still do the same thing.

Somone might suggest a dodgy reset button on your case, which isnt probably, but can be tested easily, unplug all of your front panel connectors, and then jsut touch the power + and - together with a screw driver and then try restarting once booted.
My System SpecsSystem Spec
29 Dec 2011   #6
computerman

Windows 7 64bit
 
 

Alright, thanks for the help man I've tested the front panel a zillion times, and im sure it's not that.
My System SpecsSystem Spec
29 Dec 2011   #7
mgp1964

Windows 7 Pro x64
 
 

Using the case power button and using the shutdown button in Windows are the same function, holding the case power button down for 5 seconds to shut down Windows is a hard shut down which would be the same as pulling the power cord out which can cause problems with windows as the ram does not get flushed and data contained within the ram is lost.

Now with that cleared up it could be hardware or a software problem, first thing make sure you have no USB devices connected to the pc except your mouse and KB and see if the pc will shut down correctly.

If the pc still reboots then I would strip the thing down to a basic setup, that means cpu+heatsink/fan, 1 stick of ram, graphic card unless you have an integrated one and that is it. Disconnect all USB, sound and front panel headers from the MB except the power button and then try powering on the pc, it should boot and then try to enter BIOs, if you can do this then hit the power button and the pc should power off, if it does then you know your MB and power supply is not the problem, now add one item back at a time and test after each one until the problem pops up. If the pc shuts down with all the hardware installed (not booted into Windows still all in BIOs) you know your hardware is good and it has to be a Windows setting or problem.
My System SpecsSystem Spec
29 Dec 2011   #8
AddRAM

Windows 7 Pro x64 Windows 10 Pro x64
 
 

I have been buying from Tigerdirect for years, they have great service. Have you talked to them on the phone about the situation ?
My System SpecsSystem Spec
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 New PC build restart when shutting down.




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