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Dell XPS 15 9560 (1.9.4) NVRAM edits
# Set Intel(R) Speed Shift Technology to Enabled
setup_var 0x4BC 0x1
# Set CFG Lock to Disabled
setup_var 0x4ED 0x0
# Set Above 4GB MMIO BIOS assignment to Enabled
setup_var 0x79A 0x1
# Set EHCI Hand-off to Disabled
setup_var 0x2 0x0
# Set XHCI Hand-off to Disabled
# setup_var 0x1B 0x0
# Set Low Power S0 Idle Capability to Enabled
setup_var 0x13 0x1
# Set DVMT Total Gfx Mem to MAX
# setup_var 0x796 0x3
# Set Overclocking Lock to Disabled
setup_var 0x59C 0x0
# Set OverClocking Feature to Enabled
setup_var 0x65C 0x1
# Set XTU Interface to Enabled
setup_var 0x65D 0x1
# Set Core Voltage Offset Prefix to Negative
setup_var 0x664 0x1
# Set Core Voltage Offset to -120 mV
setup_var 0x662 0x78
# Set Uncore Voltage Offset Prefix to Negative
setup_var 0x865 0x1
# Set Uncore Voltage Offset to -100 mV
setup_var 0x863 0x64
# Set GT Voltage Offset Prefix to Negative
setup_var 0x86D 0x1
# Set GT Voltage Offset to -100 mV
setup_var 0x86B 0x64
# Set GT Unsliced Voltage Offset Prefix to Negative
setup_var 0x876 0x1
# Set GT Unsliced Voltage Offset to -100 mV
setup_var 0x874 0x64
# Set PCI Express Root Port 13 to Disabled
setup_var 0x95A 0x0
# Set Debug Interface to Enabled
# setup_var 0x59D 0x1
# Set Direct Connect Interface to Enabled
# setup_var 0x59F 0x1
# Set DCI enable (HDCIEN) to Enabled
# setup_var 0x899
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