Facts and Myths About the Haswell Power Supply Case

The Cooler Master satisfied the urban mendemonds. We have also reported that when Haswell CPUs reach the highest level of energy efficiency, the + 12V power supply is subjected to a load of just 0,05 amps. Unfortunately, this can cause system crashes or, in the worst case, failures of power supplies that are not prepared for this. The thing can be eliminated, the new sleep state can be disabled in the BIOS, but of course we lose that ability.

While the situation didn’t seem so complicated, a lot of rumors hit his head. According to the Cooler Master, the following urban legends are false: Haswell CPUs do not work with most power supplies, DC-DC design is mandatory, a + 12V power supply is definitely needed, a high energy efficiency (above 80%) power supply is required next to news. The only thing that is true is that with older power supplies, the standby power requirements of Haswell APUs can be up to 5 watts.

In addition, Cooler Master has provided a tip to work around this problem. Installing a system cooling fan in your computer (this is recommended anyway) already puts a sufficient load on the power supply, so in theory we can activate advanced power saving features even if it is not officially supported.