ASROCK Z87M OC Formula User Manual page 92

HDMI-IN Compatible Mode
Enable HDMI-In Compatible Mode if the HDMI-In port encounters compatibility
issues.
DMI Gen2
Configure the speed of the bus between the CPU and PCH.
DMI De-emphasis Control
Reduce the level of all bits except the first one after a transition for the bus between
the CPU and PCH. Users may select -6dB for better overclocking results.
PEG1 De-emphasis Control
Reduce the level of all bits except the first one after a transition for the first PCIEx16
slot. Users may select -6dB for better overclocking results.
PEG2 De-emphasis Control
Reduce the level of all bits except the first one after a transition for the second
PCIEx16 slot. Users may select -6dB for better overclocking results.
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