We had a peek at a selection of stages in overclocking and their respective temperatures, have a look at the following results please.
We enforce 4600 MHz onto the processor clock frequency by changing the multiplier
We give the processor 1.20 Volts and then (next page) later on 1.30 Volts
The problem with a Core i7 3770 @ 1.3 Volts however is that it will run up towards 90~95 Degrees C on your average heatpipe cooling. Anything under 90 Degrees C (with 100% CPU load) is a win here as it shows cooling capacity. It's the nature of the beast.
Let me clearly state that at 4600 MHz we do not need 1.3 Volts for a stable overclock, we are merely stressing the cooler to see how it behaves. Realistically, with the TUF Sabertooth Z77 motherboard we are using 1.20V is enough for 4600 MHz. So again, we have increased CPU voltage beyond what we actually need. Okay, with that explained let's have a peek:
Core i7 3770K OC at 4600 MHz 1.2 Volts - IDLE
So first up some IDLE results with the Core i7 clocked at 3770K @ 4600 GHz with 1.2 volts on the CPU. Again, the results are the IDLE temperatures thus you are in your desktop doing nothing.
Core i7 3770K OC at 4600 MHz 1.2 Volts LOAD
Now we'll be testing the temperatures under stress. If we set the overclock at 4600 MHz and configure CPU Voltage at 1.2V, these will be the results.
As you can see, the temperatures are bumped up higher quickly once you apply a Voltage tweak. Overclocked with 1.2 Volts we see some heatpipe coolers already run into problems. That Core i7 3770K simply is a nasty product when v-tweaked.
My rule of thumb is simple:
If the processor can stay under or at 75 Degrees for a long period of time, you will be okay
Good would be under 70 Degrees C
Excellent cooling can keep it under 65 Degrees C
The Iceberg 240 stays well within what I consider to be good cooling as we hover at only 59 Degrees C. We consider this overclock to be a very realistic tweak, similar to what you guys achieve and do at home. But let's raise the bar higher, next page please.
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