====== Information ======

  * Dell Latitude 5591 ((theoretically may work for Precision 3530 and Latitude 5491 since they share the same BIOS file))
  * 2024/06/01: BIOS 1.32
  * :!: 2024/09/25: Something (presumably PCI-related) causes ''iwlwifl'' to firmware-crash

====== Overclocking Lock ======

  * Enable/Disable Overclocking Lock (BIT 20) in FLEX_RATIO(194) MSR

  * Default: Enabled ''1''
  * Ideal: Disabled ''0''

  setup_var_cv Setup 0x659 0x1 0x0

====== CFG Lock ======

  * Configure MSR 0xE2[15], CFG Lock bit

  * Default: Enabled ''1''
  * Ideal: Disabled ''0''

  setup_var_cv Setup 0x5BD 0x1 0x0

====== DVMT Pre-Allocated ======

  * Select DVMT 5.0 Pre-Allocated (Fixed) Graphics Memory size used by the Internal Graphics Device

  * Default: Unknown
  * Ideal: 64M ''2''

  setup_var_cv Setup 0x8D2 0x1 0x2

====== DVMT Total Gfx Mem ======

  * Select DVMT5.0 Total Graphic Memory size used by the Internal Graphics Device

  * Default: Unknown
  * Ideal: MAX ''3''

  setup_var_cv Setup 0x8D3 0x1 0x3

====== Above 4GB MMIO BIOS assignment ======

  * Enable/Disable above 4GB MemoryMappedIO BIOS assignment
  * This is enabled automatically when Aperture Size is set to 2048MB

  * Default: Disabled ''0''
  * Ideal: Enabled ''1''

  setup_var_cv Setup 0x8D7 0x1 0x1

====== Aperture Size ======

  * Select the Aperture Size

  * Default: 256MB ''1''
  * Ideal: 2048MB ''15''

  setup_var_cv Setup 0x821 0x1 0xF

====== Aggressive LPM Support ======

  * Enable PCH to aggressively enter link power state

  * Default: Enabled ''1''
  * Ideal: Disabled ''0''

  setup_var_cv Setup 0xA7E 0x1 0x0

====== Max TOLUD ======

  * Maximum Value of TOLUD
  * Dynamic assignment would adjust TOLUD automatically based on largest MMIO length of installed graphic controller

  * :!: TODO: Check this for 1.33

  * Default: Unknown

  setup_var_cv Setup 0x90E 0x1 0x0

====== RC6(Render Standby) ======

  * Check to enable render standby support

  * Default: Enabled ''1''
  * Ideal: Disabled ''0''

  setup_var_cv Setup 0x81B 0x1 0x0

====== Bi-directional PROCHOT# ======

  * When a processor thermal sensor trips (either core), the PROCHOT# will be driven
  * If bi-direction is enabled, external agents can drive PROCHOT# to throttle the processor

  * Default: Enabled ''1''
  * Ideal: Disabled ''0''

  setup_var_cv Setup 0x5F4 0x1 0x0

====== Panel Scaling ======

  * Select the LCD panel scaling option used by the Internal Graphics Device

  * Default: Auto ''0''
  * Ideal: Off ''1''

  setup_var_cv Setup 0x81A 0x1 0x1

====== WatchDog ======

  * Enable/Disable WatchDog Timer

  * Default: Enabled ''1''
  * Ideal: Disabled ''0''

  setup_var_cv Setup 0x7D1 0x1 0x0

====== DMI Link ASPM Control ======

===== DMI Link =====

  * The control of Active State Power Management of the DMI Link

  * Default: Auto ''4''
  * Ideal: Disabled ''0''

  setup_var_cv Setup 0xEE6 0x1 0x0

===== SA side =====

  * Enable/Disable the control of Active State Power Management on SA side of the DMI Link
  * :?: SA is System Agent?

  * Default: L0sL1 ''3''
  * Ideal: Disabled ''0''

  setup_var_cv Setup 0x900 0x1 0x0

====== DMI Max Link Speed ======

  * Set DMI Speed Gen1/Gen2/Gen3

  * Default: Auto ''0''
  * Ideal: Gen3 ''3''

  setup_var_cv Setup 0x8DE 0x1 0x3

====== Linux UV Test ======

===== Resources =====

  * https://github.com/erpalma/throttled/issues/97
  * https://github.com/mihic/linux-intel-undervolt
  * https://github.com/erpalma/throttled/blob/master/throttled.py
  * https://github.com/DivyanshuVerma/throttlestop-linux (prochot)

===== CPU Core =====

  * ThrottleStop: ''FIVRVoltage00=0xF3200000''
  * -100.6 mV Offset Voltage

  wrmsr --all '0x150' '80000011F3200000'

==== IccMax ====

  * ThrottleStop: ''IccMaxNew00=0x000003FF''
  * 255.75 A

  wrmsr --all '0x150' '0x80000017000003ff'

===== CPU Cache =====

  * ThrottleStop: ''FIVRVoltage20=0xF3200000''
  * ''-100.6 mV'' Offset Voltage

  wrmsr --all '0x150' '80000211F3200000'

==== IccMax ====

  * ThrottleStop: ''IccMaxNew20=0x000003FF''
  * ''255.75 A''

  wrmsr --all '0x150' '0x80000217000003ff'

===== System Agent =====

  * ThrottleStop: ''FIVRVoltage40=0xF3200000''
  * ''-100.6 mV'' Offset Voltage

  wrmsr --all '0x150' '80000411F3200000'

==== IccMax ====

  * ThrottleStop: ''IccMaxNew40=0x000003FF''
  * ''255.75 A''

  wrmsr --all '0x150' '0x80000417000003ff'