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Pc won't boot

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#1
I was serfing the net and running a virus scan when my pc just shut off.Now when I turn it on the video card just spins at full speed.
Anyone got any ideas?
 
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#2
Any error beep codes (assuming the "speaker" (or "spkr") plug of the case is plugged into the moterboard)? Did you check the voltage settings in the BIOS? Especially the the word [auto] can be a no-no sometimes (esp. with RAM).
 
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#3
It won't boot no sounds other than the vid card fan at full speed.
I'm going to pull the CPU and look at it
 
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#4
CPU looks fine and the mono looks fine but it's still doing it
 

OneMoar

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#5
test the power supply ?
 
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#6

tigger

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#7
Also try a bios reset, you never know.
 
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#8
The psu has 12v but when I try to use a volt meter on the mobo it works on everything but the cpu volts it won't read it
 

OneMoar

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#9
The psu has 12v but when I try to use a volt meter on the mobo it works on everything but the cpu volts it won't read it
the 4pin cpu connector ?
if so you have found the issue ......
 
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#10
The mobo has probes on it for voltage and the cpu probe don't work I just put in my brothers CPU i7 950 and still the same
 

OneMoar

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#11
swap the psu
 
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#12
Sounds like possible CPU circuitry around the cpu is damaged, can you try his power supply CPU plug on your Mobo? Also see if your cpu boots in his.
 
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#13
The psu has 12v and 5v still
 
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#14
I don't have his psu.all I have is his CPU and memory
 
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#15
Hm. Unfortunately this might be the mobo but only a full swap would show since its not as testable as a DIMM going down or such. If the CPU gets no power nothing will work, still under warranty?
 
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#16
It don't beep at all and the voltminder LEDs just the hdd led lights up no other LEDs are coming on.
The psu is working its got good voltage on everything.I don't think the mobo is under warranty anymore.
 
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#17
check battery
 
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#18
Just changed it still doing the same
 
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#19
Any possible grounding issue? I know it was in use when it happened but it worth checking as the symptoms could cause that, back of the mobo maybe?
 
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#20
I pulled everything out of the case and only have the bare min hooked up still nada
 

JrRacinFan

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#21
Sounds to me 99% mobo.
 
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#22
It's right at two years old and was ran under volted it's intire life junk parts I guess
 

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#23
check the power pins to the vid card, when I built my system, silly me forgot to plug the gpu into the psu, all I got was VRSSSSSSHHHHHH of the gpu fan going at full speed. Sounds like whats going on with yours.

I'd try use different plugs if your PSU allows, blow the dust off the gpu power inputs, try a different PSU if you can, etc, etc.
 
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#24
The thing that screams failure is that it was running while this happened. Sucks its out of warranty. I'm surprised though since you stated it was undervolted. Any signs of damage in the socket region?
 
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#25
Mobo
If the speaker doesn't beep the mobo is fucked, if the mobo is working and psu voltage are good and there is a other problem the mobo will beep