Which means, SMC overheat protection now also disabled.įor TG Pro, there is an option for the user to choose "system override", but this function is OFF by default. But if anything is overheating, the SMC will command a higher fan speed by ordering a higher "Target fan speed".īut for MFC, it ALWAYS alter the Target fan speed directly. So that, the fan will spin up to match the min fan speed that the user ask for. So, it's powerful, but with potential danger.ĪFAIK, there are only two popular fan control software can control the fans in that way.įor all other softwares, they all control the fans by modifying the "Minimum fan speed" SMC key. However, the fan curve now base on the heatsink temperature, which also means, even the CPU is overheating, the fan still won't spin up. So that, the CPU is hot, but the heatsink is cool. Which means, if the thermal paste performance is deteriorated, the heat can no longer transfer to the heatsink effectively. I've seen few people set the fan speed base on the heatsink temperature. But if use it improperly, that can be quite danger. Of course, if the user setup a correct fan curve, nothing will hurt. Many people love to use it because this software can fix some high fan speed "bug", however, that's simply because the system now no longer can spin up the fan even the hardware is overheating. MFC is one of the fan control software that will completely override the system protection.
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