ASROCK Z87 Extreme4 User Manual page 16

ASRock FAN-Tastic Tuning
ASRock FAN-Tastic Tuning is included in A-Tuning. Configure up to five different
fan speeds using the graph. The fans will automatically shift to the next speed level
when the assigned temperature is met.
ASRock Distortion-Free Slot
ASRock's new pin design for the memory slots and PCIe slots may appear to be the
same as former designs, but actually effectively reduces distortion and promotes
performance, because we strive for perfection even in the most trivial details.
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