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bios:setup_var_mods:dell_latitude_5591_1.27

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Table of Contents

Information

Overclocking Lock

  • Enable/Disable Overclocking Lock (BIT 20) in FLEX_RATIO(194) MSR
  • Default: Enabled
  • Ideal: Disabled
setup_var_cv Setup 0x659 0x1 0x0

CFG Lock

  • Configure MSR 0xE2[15], CFG Lock bit
  • Default: Enabled
  • Ideal: Disabled
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
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
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
  • Ideal: Enabled
setup_var_cv Setup 0x8D7 0x1 0x1

Aperture Size

  • Select the Aperture Size
  • Default: 256MB
  • Ideal: 2048MB
setup_var_cv Setup 0x821 0x1 0xF

Aggressive LPM Support

  • Enable PCH to aggressively enter link power state
  • Default: Enabled
  • Ideal: Disabled
setup_var_cv Setup 0xA7E 0x1 0x0

CSM Support

  • Enable/Disable CSM Support
  • Default: Unknown
  • Ideal: Disabled
setup_var_cv Setup 0x11A6 0x1 0x0

Serial Port

  • Default: COM1
  • Ideal: Disabled
setup_var_cv Setup 0x13DD 0x1 0x0

Maximum GT frequency

  • Default: Unknown
  • Ideal: 1200Mhz
setup_var_cv Setup 0x82B 0x1 0x18

FCLK Frequency for Early Power On

  • Default: Unknown
  • Ideal: 1GHz
setup_var_cv Setup 0x66F 0x1 0x1

Max TOLUD

  • Maximum Value of TOLUD
  • Dynamic assignment would adjust TOLUD automatically based on largest MMIO length of installed graphic controller
  • Default: Unknown
  • Ideal: 3.5 GB
setup_var_cv Setup 0x90E 0x1 0xB
1)
theoretically may work for Precision 3530 and Latitude 5491 since they share the same BIOS file
C:/www/wiki/data/attic/bios/setup_var_mods/dell_latitude_5591_1.27.1687568049.txt.gz ยท Last modified: (external edit)