CPU Overclocking Shutdown

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Xtremeacecow124

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May 14, 2015
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I am new to overclocking, but know the basics. I was just wondering what the causes of the system shutting down in stress tests. Is it the heat or just undervoltage?
 
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T
Could be either or both. They are somewhat tied together.

Heat sensors will shut it down. The PSU, assuming it's fairly modern, monitors the voltages and will shut the PSU down if they go out of spec.

As heat rises, resistance in the circuits goes up requiring higher power to maintain the same voltage which creates more heat which raises the resistance and causes power requirement to go up, etc. until it reaches one of the limits that shuts it down

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thx1138v2

Splendid
Jun 18, 2011
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Could be either or both. They are somewhat tied together.

Heat sensors will shut it down. The PSU, assuming it's fairly modern, monitors the voltages and will shut the PSU down if they go out of spec.

As heat rises, resistance in the circuits goes up requiring higher power to maintain the same voltage which creates more heat which raises the resistance and causes power requirement to go up, etc. until it reaches one of the limits that shuts it down

 
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Solution
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thx1138v2

Splendid
Jun 18, 2011
2,172
97
22,040

The machine will probably become unstable and you'll start getting lockups and/or blue screens. Typically, when overclocking you have to raise the voltages to get stable operation.

You need to deal with the heat issues first.

Also recognize that overclocking is different for every processor even if they are the same make and model and come from the same batch. It's called overclocking because you are trying to operate over the guaranteed limits. So it doesn't always work and you can damage the processor with too much heat so it will no longer within the given limits either.
 
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