ASUS ROG Zenith Extreme Alpha review

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Power Consumption

Power Consumption

In an IDLE state, a PC (motherboard / processor / memory / SSD / RTX 2080 Ti) consumes roughly 85 Watts. This number depends and will vary per motherboard (added ICs / controllers / wifi / Bluetooth) and PSU (efficiency). Keep in mind that we measure the ENTIRE PC, not just the processor's power consumption. Your average PC can differ from our numbers if you add optical drives, HDDs, soundcards etc.


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Again, I want to make it very clear that power consumption measurements will differ per PC and setup. Your attached components use power but your motherboard can also have additional ICs installed like an audio controller, 3rd party chips, network controllers, extra SATA controllers, extra USB controllers, and so on. These parts all consume power, so these results are a subjective indication. Next, to that, we stress all CPU cores 100% and thus show peak power consumption. Unless you transcode video with the right software your average power consumption will be much lower. Multithreaded power consumption was at almost 260 Watts (24 cores stressed).


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Please be aware of the fact that these motherboards do not have the EuP/ErP BIOS setting enabled. That means RGB will remain on at all times when powered down. While that looks great, it does consume almost 7 Watts 24/7/365 = 61 KWh per year just in powered down mode. In the BIOS you can enable EuP which will turn off things like RGB once the PC is powered down, but power down / sleep energy consumption will be less than 0.1 Watts -- your call to make.


Temp

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Overall stress/load temperatures are moderate with temps at the ~65 C marker. These, of course, are default results and not tweaked and are based on the extremely heavy AIDA64 CPU and FPU Stress test combined. We used a 280mm radiator based cooling kit. 

 

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