i9 BIOS
Leo-Patch 1.6 · Q1HY MoDT · Observations 14 October 2026

Record 602

Efficient-core Information

Menu Link

Displays the E-core Information

Opcode
Ref
Question ID
0x226

Visibility / conditions

  • {"condition_id": 167, "type": "SuppressIf", "offset": 339931, "expr": ["EqIdVal QuestionId: 0x1260, Value: 0x0", "EqIdVal QuestionId: 0x22E, Value: 0x0", "Or"]}

Record 603

Performance-core Information

Menu Link

Displays the P-core Information

Opcode
Ref
Question ID
0x227

Visibility / conditions

  • {"condition_id": 168, "type": "GrayOutIf", "offset": 339966, "expr": ["EqIdVal QuestionId: 0x128B, Value: 0x0", "EqIdVal QuestionId: 0x22D, Value: 0x0", "Or"]}

Record 604

C6DRAM

Firmware Value

Enable/Disable moving of DRAM contents to PRM memory when CPU is in C6 state

Opcode
OneOf
Question ID
0x2724
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x114
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1Enabled

Default store records

Store IDStore labelValueOption label
0Standard1Enabled

Visibility / conditions

  • {"condition_id": 170, "type": "SuppressIf", "offset": 340105, "expr": ["EqIdVal QuestionId: 0x12A1, Value: 0x0"]}

Record 605

CPU Flex Ratio Override

Firmware Value

Enable/Disable CPU Flex Ratio Programming

Opcode
OneOf
Question ID
0x228
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x3
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 606

Hardware Prefetcher

Firmware Value

To turn on/off the MLC streamer prefetcher.

Opcode
OneOf
Question ID
0x229
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0xbf
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 607

Adjacent Cache Line Prefetch

Firmware Value

To turn on/off prefetching of adjacent cache lines.

Opcode
OneOf
Question ID
0x22a
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0xc0
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 608

Intel (VMX) Virtualization Technology

Firmware Value

When enabled, a VMM can utilize the additional hardware capabilities provided by Vanderpool Technology.

Opcode
OneOf
Question ID
0x2725
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0xb9
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Visibility / conditions

  • {"condition_id": 171, "type": "SuppressIf", "offset": 340253, "expr": ["EqIdVal QuestionId: 0x12A0, Value: 0x0"]}
  • {"condition_id": 172, "type": "GrayOutIf", "offset": 340261, "expr": ["EqIdVal QuestionId: 0x1186, Value: 0x1"]}

Record 609

PECI

Firmware Value

Enable/Disable PECI

Opcode
OneOf
Question ID
0x22b
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x4
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 610

AVX

Firmware Value

Enable/Disable the Avx 2 Instructions.

Firmware help text

Enable/Disable the Avx 2 Instructions. This is applicable for Performance-core only

Opcode
OneOf
Question ID
0x22c
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x2dc
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0EnabledStandard defaultManufacturing default
1Disabled

Record 611

Active Performance-cores

Firmware Value

Number of P-cores to enable in each processor package.

Firmware help text

Number of P-cores to enable in each processor package. Note: Number of Cores and E-cores are looked at together. When both are {0,0}, Pcode will enable all cores.

Opcode
OneOf
Question ID
0x22d
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x6
Width
1 byte(s)
Range
1 to 255 step 0
ValueLabelMarkers
255AllStandard defaultManufacturing default
77
66
55
44
33
22
11

Visibility / conditions

  • {"condition_id": 173, "type": "GrayOutIf", "offset": 340372, "expr": ["EqIdVal QuestionId: 0x2727, Value: 0x1"]}
  • {"condition_id": 174, "type": "SuppressIf", "offset": 340380, "expr": ["EqIdVal QuestionId: 0x128B, Value: 0x0"]}
  • {"condition_id": 175, "type": "GrayOutIf", "offset": 340388, "expr": ["EqIdVal QuestionId: 0x27E7, Value: 0x1"]}

Record 612

Active Efficient-cores

Firmware Value

Number of E-cores to enable in each processor package.

Firmware help text

Number of E-cores to enable in each processor package. Note: Number of Cores and E-cores are looked at together. When both are {0,0}, Pcode will enable all cores.

Opcode
OneOf
Question ID
0x22e
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x22f
Width
1 byte(s)
Range
0 to 255 step 0
ValueLabelMarkers
255AllStandard defaultManufacturing default
1515
1414
1313
1212
1111
1010
99
88
77
66
55
44
33
22
11
00

Visibility / conditions

  • {"condition_id": 173, "type": "GrayOutIf", "offset": 340372, "expr": ["EqIdVal QuestionId: 0x2727, Value: 0x1"]}
  • {"condition_id": 183, "type": "SuppressIf", "offset": 340580, "expr": ["EqIdVal QuestionId: 0x1260, Value: 0x0"]}
  • {"condition_id": 184, "type": "GrayOutIf", "offset": 340588, "expr": ["EqIdVal QuestionId: 0x27E7, Value: 0x1"]}

Record 613

Limit CPUID Maximum

Firmware Value

Disabled for Windows XP

Opcode
OneOf
Question ID
0x22f
VarStore
AmiWrapperSetup
VarStore GUID
C61C31A3-CB5D-46DD-9FE5-8A82BBC72483
Offset
0x2
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Visibility / conditions

  • {"condition_id": 200, "type": "SuppressIf", "offset": 340965, "expr": ["True"]}

Record 614

Hyper-Threading

Firmware Value

Enable or Disable Hyper-Threading Technology.

Opcode
OneOf
Question ID
0x2726
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x5
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Visibility / conditions

  • {"condition_id": 201, "type": "SuppressIf", "offset": 341004, "expr": ["EqIdVal QuestionId: 0x129C, Value: 0x0"]}
  • {"condition_id": 202, "type": "GrayOutIf", "offset": 341012, "expr": ["EqIdVal QuestionId: 0x2727, Value: 0x1"]}

Record 615

BIST

Firmware Value

Enable/Disable BIST (Built-In Self Test) on reset

Opcode
OneOf
Question ID
0x230
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x7
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 616

AP threads Idle Manner

Firmware Value

AP threads Idle Manner for waiting signal to run

Opcode
OneOf
Question ID
0x231
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x120
Width
1 byte(s)
Range
1 to 3 step 0
ValueLabelMarkers
1HALT Loop
2MWAIT LoopStandard defaultManufacturing default
3RUN Loop

Record 617

AES

Firmware Value

Enable/Disable AES (Advanced Encryption Standard)

Opcode
OneOf
Question ID
0x232
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0xba
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Visibility / conditions

  • {"condition_id": 203, "type": "SuppressIf", "offset": 341130, "expr": ["EqIdVal QuestionId: 0x129F, Value: 0x0"]}
  • {"condition_id": 204, "type": "GrayOutIf", "offset": 341138, "expr": ["EqIdVal QuestionId: 0x1186, Value: 0x1"]}

Record 618

MachineCheck

Firmware Value

Enable/Disable Machine Check

Opcode
OneOf
Question ID
0x233
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0xbb
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 619

MonitorMWait

Firmware Value

Enable/Disable MonitorMWait, if Disable MonitorMwait, the AP threads Idle Manner should not set in MWAIT Loop

Opcode
OneOf
Question ID
0x234
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0xbc
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 620

Intel Trusted Execution Technology

Firmware Value

Enables utilization of additional hardware capabilities provided by Intel (R) Trusted Execution Technology.

Firmware help text

Enables utilization of additional hardware capabilities provided by Intel (R) Trusted Execution Technology. Changes require a full power cycle to take effect.

Opcode
OneOf
Question ID
0x2727
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0xc1
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Visibility / conditions

  • {"condition_id": 205, "type": "SuppressIf", "offset": 341249, "expr": ["EqIdVal QuestionId: 0x129E, Value: 0x0"]}
  • {"condition_id": 206, "type": "GrayOutIf", "offset": 341257, "expr": ["EqIdVal QuestionId: 0x2725, Value: 0x0", "EqIdVal QuestionId: 0x2A36, Value: 0x0", "Or", "EqIdVal QuestionId: 0x1281, Value: 0x1", "Or"]}

Record 621

Alias Check Request

Firmware Value

Enables Txt Alias Checking capability Changes require full Txt capability before it will take effect.

Firmware help text

Enables Txt Alias Checking capability Changes require full Txt capability before it will take effect. It is a one time only change, next reboot will be reset.

Opcode
OneOf
Question ID
0x235
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0xc4
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Visibility / conditions

  • {"condition_id": 207, "type": "SuppressIf", "offset": 341320, "expr": ["EqIdVal QuestionId: 0x129E, Value: 0x0"]}
  • {"condition_id": 208, "type": "GrayOutIf", "offset": 341328, "expr": ["EqIdVal QuestionId: 0x2727, Value: 0x0"]}

Record 622

DPR Memory Size (MB)

Firmware Value

Reserve DPR memory size (0-255) MB

Opcode
Numeric
Question ID
0x236
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0xbd
Width
2 byte(s)
Range
0 to 255 step 1

Default store records

Store IDStore labelValueOption label
0Standard4

Visibility / conditions

  • {"condition_id": 209, "type": "SuppressIf", "offset": 341373, "expr": ["EqIdVal QuestionId: 0x129E, Value: 0x0"]}
  • {"condition_id": 210, "type": "GrayOutIf", "offset": 341381, "expr": ["EqIdVal QuestionId: 0x129D, Value: 0x1", "EqIdVal QuestionId: 0x2725, Value: 0x0", "Or", "EqIdVal QuestionId: 0x2A36, Value: 0x0", "Or", "EqIdVal QuestionId: 0x2727, Value: 0x0", "Or", "EqIdVal QuestionId: 0x22D, Value: 0xFF", "EqIdVal QuestionId: 0x22E, Value: 0xFF", "And", "Not", "Or"]}

Record 623

Reset AUX Content

Firmware Value

Reset TPM Aux content.

Firmware help text

Reset TPM Aux content. Txt may not functional after AUX content gets reset.

Opcode
OneOf
Question ID
0x237
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0xc3
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
1yes
0noStandard defaultManufacturing default

Visibility / conditions

  • {"condition_id": 211, "type": "SuppressIf", "offset": 341466, "expr": ["EqIdVal QuestionId: 0x129E, Value: 0x0"]}
  • {"condition_id": 212, "type": "GrayOutIf", "offset": 341474, "expr": ["EqIdVal QuestionId: 0x129D, Value: 0x1", "EqIdVal QuestionId: 0x2725, Value: 0x0", "Or", "EqIdVal QuestionId: 0x2A36, Value: 0x0", "Or", "EqIdVal QuestionId: 0x2727, Value: 0x1", "Or", "EqIdVal QuestionId: 0x22D, Value: 0x0", "Not", "Or", "EqIdVal QuestionId: 0x2726, Value: 0x0", "EqIdVal QuestionId: 0x129C, Value: 0x1", "And", "Or"]}

Record 624

CPU SMM Enhancement

Menu Link

CPU SMM Enhancement

Opcode
Ref
Question ID
0x238

Visibility / conditions

  • {"condition_id": 213, "type": "SuppressIf", "offset": 341571, "expr": ["EqIdVal QuestionId: 0x1299, Value: 0x0"]}

Record 625

FCLK Frequency for Early Power On

Firmware Value

FCLK frequency can take values of 400MHz, 800MHz and 1GHz (1GHz not supported for ULT/ULX SKUs)

Firmware help text

FCLK frequency can take values of 400MHz, 800MHz and 1GHz (1GHz not supported for ULT/ULX SKUs)

Opcode
OneOf
Question ID
0x239
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x126
Width
1 byte(s)
Range
0 to 3 step 0
ValueLabelMarkers
0Normal (800Mhz)
11GHz
2400MHz
3AutoStandard defaultManufacturing default

Visibility / conditions

  • {"condition_id": 214, "type": "SuppressIf", "offset": 341596, "expr": ["EqIdVal QuestionId: 0x129B, Value: 0x0"]}

Record 626

Total Memory Encryption

Firmware Value

Configure Total Memory Encryption (TME) to protect DRAM data from physical attacks.

Opcode
OneOf
Question ID
0x2728
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x229
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Visibility / conditions

  • {"condition_id": 215, "type": "SuppressIf", "offset": 341653, "expr": ["EqIdVal QuestionId: 0x129A, Value: 0x0"]}

Record 627

Tcc Activation

Firmware Value

Tcc Activation range is 37 to 100.

Firmware help text

Tcc Activation range is 37 to 100. 0=Auto, 70=70℃

Opcode
Numeric
Question ID
0x2a2f
VarStore
Setup
VarStore GUID
EC87D643-EBA4-4BB5-A1E5-3F3E36B20DA9
Offset
0xd0f
Width
1 byte(s)
Range
0 to 255 step 0

Default store records

Store IDStore labelValueOption label
0Standard0