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Old 04-16-2012, 05:26 AM   #1 (permalink)
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Default MSI P31 NO power on

Hi ,
I have a MSI P31 Neo v2 MB
It's problem :
This motherboard does not respond to the power button !

diagnostic info :

3.3v OK in power button .
3.3v OK in PCI slots
Manually connecting Green wire with the Black one boots the board and every thing is OK ( tested by installing windows and drivers and 4 hours of work ) But in this case there will be no power down !!!
Bios is not forgetting settings .

I will solder the green wire & GND .. butthis will make it like an old AT mb ..

I want to know if there is a solution to make it an ATX board again !


thanks
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Old 04-16-2012, 08:56 AM   #2 (permalink)
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Default Re: MSI P31 NO power on

Replace the power supply
You did not specify the 12 and 5 volts output
read this
Power Good Signal
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Old 04-16-2012, 09:42 AM   #3 (permalink)
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Default Re: MSI P31 NO power on

the power supply is ok and as i said the Motherboard is booting and ok if I shorted the green wire and the black one .....
but when I de-short them it just turn off ! as n old AT motherboard .

the main problem is that the mainboard is not responding to the power button !! I mean shorting the power switch in the front panel is not working !

I guess the problem is in this ic :
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Old 04-16-2012, 02:01 PM   #4 (permalink)
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Default Re: MSI P31 NO power on

well if you know it's the board, then replace it
Taking the power supply to a local shop to get it tested under a load is recommended imho
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Old 04-17-2012, 03:18 AM   #5 (permalink)
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Default Re: MSI P31 NO power on

I am the local shop now hihi

well I soldered the green wire pin in the board with the next pin (GND) and it was final ...
there is no power down for the pc now , but every thing else is OK.

Thanks joe C
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