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I recently upgraded my graphics card to a gtx 750 ti and now my computer keeps crashing showing the "CPU over voltage error" when I start my computer back up. I tried putting my old graphics card back in to see if it would stop it but it still crashes sometimes.
My specs are: Windows 7 Home Premium 64-bit SP1 CPU: Intel Core i7 870 @ 2.93GHz RAM: 8.00GB Dual-Channel DDR3 @ 665MHz (9-9-9-24) Motherboard: ASUSTeK Computer INC. P7H55-M LX (LGA1156) Hard drive: 931GB Seagate ST31000528AS ATA Device (SATA)
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- reset bios to factory defaults (remove the battery too) - use a program to check the CPU voltage (like CPUz)
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I reset the bios. The CPU voltage is 0.832V
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I had that same Seagate HDD, it failed on me and caused a slew of errors and problems. S.M.A.R.T. status should give you a heads up on the ASUS bios page if it has failed/failing..Just thought I would share.
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On October 01 2014 04:43 Azure. wrote: I reset the bios. The CPU voltage is 0.832V - that's a good V for when the CPU is powered down somewhat (works at a lower freq for power saving). what's the V when the CPU is stressed at/or close to max?. - does it still crashes?. (after the bios reset) - have you removed the driver of the old GPU before installing your new 750ti?.
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What GPU did you have previously and what's the label on the PSU saying?
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My HDD is showing no errors. The CPU seems to stay around that voltage no matter what load it's under. Yes I removed the old drivers.
My GPU before was a GT 430 and what label on the PSU are you asking about?
Is there any chance CPU overheating would cause this error? My is getting very hot, but I would think it would show an overheating error and not a voltage error if this was the problem?
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I meant a large sticker on the PSU that might look like this: http://i.imgur.com/hfCurgi.png
In that example the PSU can provide 12 V * 20.8 A = around 250 W of power for CPU and GPU and drives.
Yes, the PC can crash if the CPU is getting very hot, but it has to be extreme. What temperatures do you see?
When you turn it back on, the BIOS might be wrong about what happened.
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This is my PSU sticker. http://imgur.com/LGGwBqS I saw my CPU get up to 99c just before it crashed once. I know 100c is the auto shut off point so if that could cause the error I'm seeing that might be the cause.
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does your CPU fan spins? kinda dumb question but at this point it's between CPU and mobo that could be busted (the CPU is way less likely). - try and check the V when CPU is at or around ~99C - reseat everything including the CPU; it could be a pinning issue since you stressed the mobo when changing GPUs
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Yeah the fan is spinning. The V seems to stay at 0.832v all the time and how do you reset the CPU?
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On October 01 2014 19:28 Azure. wrote: Yeah the fan is spinning. The V seems to stay at 0.832v all the time and how do you reset the CPU? - reseat is when you take it out of its socket then put it back in - 99C at 0.83V doesn't make sense unless there's something wrong with the fan, the thermal paste between CPU and heat-sink, or the thermal contact between CPU and heat-sink is screwed. maybe you hit the fan+heat-sink and nudge it off its screws or something.
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CPUs crahes when undervolted, overvoltage should just cause too much heat or in extreme cases kill the CPU. maybe the message just assumes overvoltage is the cause of the thermal shutdown.
what happens when you use your old GPU?
Also, your CPu should be at around 40 when idle and not go over 80 when working, you dont even overclock it, right? If it goes over that, the cooling isnt working.
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Reapplied the thermal paste and it seems to be running better now. I think the cpu was just overheating.
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