I think I just friend my system

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shanyin

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Aug 7, 2015
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I tried overclocking my i5 750 from the bios of a p55a ud3p motherboard. It turned off and won't turn on now even enough to get into the bios. When I unplugged the power chord and plugged it back in it made a static noise. Is there anything I can do?
 
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g-unit1111


CMOS is the primary circuit in your motherboard, it's controlled by a battery that looks like this:

cmos-battery.jpg


If you remove that battery it will reset your motherboard back to the factory defaults.
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adiec

adiec

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static noise.. like a cracking ? that's common place when inserting the power lead from the mains into the back of psu.. the way to not hear that noise is to hold the power button in on the front of the case whilst connecting the power lead .( assuming you are not talking about the connector from the psu to the mobo)
 
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shanyin

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Yes I did change the voltage. Before that I was just getting a Windows needs to restart your computer message but I persisted and changed the voltage.

I have a Corsair CX450M PSU. A gtx windforce oc 960 4gb, an old WD 500 gb HD and a 500 GB Crucial SSD
 
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g-unit1111

g-unit1111

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A Corsair CXM is a fairly decent unit but any kind of a voltage spike can cause danger to even the best power supplies. No single PSU is immune from it. The only way to test that for sure is to use another power supply in the system and make sure that isn't the problem. Also, what CPU cooler are you using?
 
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adiec

adiec

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i'll let g unit above take you through the fault finding process but CMOS is where the bios settings are stored on your motherboard . i think he wants to make sure that the psu isn't damaged first .
 
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g-unit1111

g-unit1111

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Sounds like there could be some other damage to your system. I'd honestly be willing to bet that the PSU got fried when you overclocked. If you have another PSU lying around the best thing to do would be to test it in your system and see if it powers up. If not then most likely your motherboard got fried.
 
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adiec

adiec

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do you think it may be better to talk him clearing cmos using the jumper on his mobo ? sometimes the battery removal can take a longer time than a few moments. do you think it is worth a try ?
 
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shanyin

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I tried it again. I took the battery out for longer this time (the first was very short) and had the powersupply on. It worked. right now i am in the BIOS to make sure it's backed to normal. Now to try windows.
 
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adiec

adiec

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i thought the length of time may have been an issue :) fingers crossed that everything is ok.. and it was just that your computer did not like your new settings voltage wise!
 
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adiec

adiec

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i have not tried overclocking for quite a number of years.. it used to be as simple as moving a jumper on the motherboard! if you are unsure of what to do .. it is better to ask in the overclocking section of the forum. i do not wish to subject you to the blind leading the blind on this subject my friend :) at the moment you had a lucky escape.. i would take a moment before trying again by yourself . lesson i think you have learned is if it is not broken.. don't fix it! :p

but i guess this is how we all learned.. trial and error.
 
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