Articles: Mainboards

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Power Consumption

We performed our power consumption measurements using an Extech Power Analyzer 380803. This device is connected before the PSU and measures the power draw of the entire system (without the monitor), including the power loss that occurs in the PSU itself. In the idle mode we start the system up and wait until it stops accessing the hard disk. Then we use LinX to load the CPU. For a more illustrative picture there are graphs that show how the computer power consumption grows depending on the number of active execution threads in LinX (both at the default and overclocked system settings). The results of MSI Z77A-GD65 GAMING are marked with a darker color for your convenience.

MSI mainboards are generally very economical, and the Z77A-GD65 GAMING doesn’t need much power at any loads, either. By the way, the high power draw of the flagship products from ASRock and ASUS is due to their additional PCIe switch.

Now let’s compare the mainboards with the CPU and memory overclocked.

The Z77A-GD65 GAMING was good in terms of power consumption at its default settings and is even better here. Energy-efficient overclocking is only possible on MSI mainboards when you don’t increase CPU voltage, which is why the Z77A-GD65 GAMING is one of the most economical in this test.

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