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

CPU, Power, Memory

CPU - Power Management Control

CPU - Power Management Control firmware setup page decoded from AMI HII/IFR resources.

Form ID
0x275e
Records
56
Path
Setup / Advanced / Power & Performance / CPU - Power Management Control / Setup / Advanced / Advanced / Power & Performance / CPU - Power Management Control

Record 636

Boot performance mode

Firmware Value

Select the performance state that the BIOS will set starting from reset vector.

Opcode
OneOf
Question ID
0x272a
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x13
Width
1 byte(s)
Range
0 to 2 step 0
ValueLabelMarkers
0Max Battery
1Max Non-Turbo Performance
2Turbo Performance

Default store records

Store IDStore labelValueOption label
0Standard2Turbo Performance

Record 637

Intel(R) SpeedStep(tm)

Firmware Value

Allows more than two frequency ranges to be supported.

Opcode
OneOf
Question ID
0x272b
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x9
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Visibility / conditions

  • {"condition_id": 230, "type": "SuppressIf", "offset": 342474, "expr": ["EqIdVal QuestionId: 0x1292, Value: 0x0"]}

Record 638

Race To Halt (RTH)

Firmware Value

Enable/Disable Race To Halt feature.

Firmware help text

Enable/Disable Race To Halt feature. RTH will dynamically increase CPU frequency in order to enter pkg C-State faster to reduce overall power. (RTH is controlled through MSR 1FC bit 20)

Opcode
OneOf
Question ID
0x242
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0xa
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 639

Intel(R) Speed Shift Technology

Firmware Value

Enable/Disable Intel(R) Speed Shift Technology support.

Firmware help text

Enable/Disable Intel(R) Speed Shift Technology support. Enabling will expose the CPPC v2 interface to allow for hardware controlled P-states.

Opcode
OneOf
Question ID
0x272c
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0xb
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 640

Per Core P State OS control mode

Firmware Value

Enable/Disable Per Core P state OS control mode.

Firmware help text

Enable/Disable Per Core P state OS control mode. Disabling will set Bit 31 = 1 command 0x06. When set, the highest core request is used for all other core requests.

Opcode
OneOf
Question ID
0x243
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0xe
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 641

HwP Autonomous Per Core P State

Firmware Value

Disable Autonomous PCPS (Bit 30 = 1, command 0x11) Autonomous will request the same value for all cores all the time.

Firmware help text

Disable Autonomous PCPS (Bit 30 = 1, command 0x11) Autonomous will request the same value for all cores all the time. Enable PCPS (default Bit 30 = 0, command 0x11)

Opcode
OneOf
Question ID
0x244
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0xf
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Visibility / conditions

  • {"condition_id": 231, "type": "SuppressIf", "offset": 342616, "expr": ["EqIdVal QuestionId: 0x1291, Value: 0x0"]}

Record 642

HwP Autonomous EPP Grouping

Firmware Value

Enable EPP grouping (default Bit 29 =0, command 0x11) Autonomous will request the same values for all cores with same EPP.

Firmware help text

Enable EPP grouping (default Bit 29 =0, command 0x11) Autonomous will request the same values for all cores with same EPP. Disable EPP grouping (Bit 29 =1 , command 0x11) autonomous will not necessarily request same values for all cores with same EPP.

Opcode
OneOf
Question ID
0x245
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x10
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Visibility / conditions

  • {"condition_id": 231, "type": "SuppressIf", "offset": 342616, "expr": ["EqIdVal QuestionId: 0x1291, Value: 0x0"]}

Record 643

EPB override over PECI

Firmware Value

Enable/Disable EPB override over PECI.

Firmware help text

Enable/Disable EPB override over PECI. Enable by sending pcode command 0x2b , subcommand 0x3 to 1. This will allow OOB EPB PECI override control

Opcode
OneOf
Question ID
0x246
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x11
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Visibility / conditions

  • {"condition_id": 231, "type": "SuppressIf", "offset": 342616, "expr": ["EqIdVal QuestionId: 0x1291, Value: 0x0"]}

Record 644

HwP Fast MSR Support

Firmware Value

Enable/Disable HwP Fast MSR Support for IA32_HWP_REQUEST MSR.

Opcode
OneOf
Question ID
0x247
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x12
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Visibility / conditions

  • {"condition_id": 231, "type": "SuppressIf", "offset": 342616, "expr": ["EqIdVal QuestionId: 0x1291, Value: 0x0"]}
  • {"condition_id": 232, "type": "SuppressIf", "offset": 342723, "expr": ["EqIdVal QuestionId: 0x1290, Value: 0x0"]}

Record 645

HwP Lock

Firmware Value

Enable/Disable HWP Lock support in Misc Power Management MSR.

Opcode
OneOf
Question ID
0x248
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x228
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Visibility / conditions

  • {"condition_id": 231, "type": "SuppressIf", "offset": 342616, "expr": ["EqIdVal QuestionId: 0x1291, Value: 0x0"]}

Record 646

HDC Control

Firmware Value

This option allows HDC configuration.

Firmware help text

This option allows HDC configuration. Disabled: Disable HDC Enabled: Can be enabled by OS if OS native support is available.

Opcode
OneOf
Question ID
0x249
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x4a
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 647

Config TDP Configurations

Menu Link

Configurable Processor Base Power (cTDP) Configurations

Opcode
Ref
Question ID
0x24a

Visibility / conditions

  • {"condition_id": 233, "type": "SuppressIf", "offset": 342834, "expr": ["EqIdVal QuestionId: 0x128A, Value: 0x0"]}

Record 649

Platform PL1 Enable

Firmware Value

Enable/Disable Platform Power Limit 1 programming.

Firmware help text

Enable/Disable Platform Power Limit 1 programming. If this option is enabled, it activates the PL1 value to be used by the processor to limit the average power of given time window.

Opcode
OneOf
Question ID
0x24c
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x31
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 650

Platform PL1 Power

Firmware Value

Platform Power Limit 1 Power in Milli Watts/Percent.

Firmware help text

Platform Power Limit 1 Power in Milli Watts/Percent. BIOS will round to the nearest 1/8W when programming. Any value can be programmed between Max and Min Power Limits (specified by PACKAGE_POWER_SKU_MSR). For example, if 12.50W, enter 12500, if 12%, enter 12000, if 50%, enter 50000. This setting will act as the new PL1 value for the Package RAPL algorithm.

Opcode
Numeric
Question ID
0x24d
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x32
Width
4 byte(s)
Range
0 to 4095875 step 125

Default store records

Store IDStore labelValueOption label
0Standard200000

Visibility / conditions

  • {"condition_id": 234, "type": "SuppressIf", "offset": 342907, "expr": ["EqIdVal QuestionId: 0x24C, Value: 0x0"]}

Record 651

Platform PL1 Time Window

Firmware Value

Platform Power Limit 1 Time Window value in seconds.

Firmware help text

Platform Power Limit 1 Time Window value in seconds. The value may vary from 0 to 128. 0 = default values. Indicates the time window over which Platform Processor Base Power (TDP) value should be maintained.

Opcode
OneOf
Question ID
0x24e
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x36
Width
1 byte(s)
Range
0 to 128 step 0
ValueLabelMarkers
00
11Standard defaultManufacturing default
22
33
44
55
66
77
88
1010
1212
1414
1616
2020
2424
2828
3232
4040
4848
5656
6464
8080
9696
112112
128128

Visibility / conditions

  • {"condition_id": 234, "type": "SuppressIf", "offset": 342907, "expr": ["EqIdVal QuestionId: 0x24C, Value: 0x0"]}

Record 652

Platform PL2 Enable

Firmware Value

Enable/Disable Platform Power Limit 2 programming.

Firmware help text

Enable/Disable Platform Power Limit 2 programming. If this option is disabled, BIOS will program the default values for Platform Power Limit 2.

Opcode
OneOf
Question ID
0x24f
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x37
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 653

Platform PL2 Power

Firmware Value

Platform Power Limit 2 Power in Milli Watts/Percent.

Firmware help text

Platform Power Limit 2 Power in Milli Watts/Percent. BIOS will round to the nearest 1/8W when programming. Any value can be programmed between Max and Min Power Limits (specified by PACKAGE_POWER_SKU_MSR). For example, if 12.50W, enter 12500, if 12%, enter 12000, if 50%, enter 50000. This setting will act as the new PL2 value for the Package RAPL algorithm.

Opcode
Numeric
Question ID
0x250
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x38
Width
4 byte(s)
Range
0 to 4095875 step 125

Default store records

Store IDStore labelValueOption label
0Standard253000

Visibility / conditions

  • {"condition_id": 235, "type": "SuppressIf", "offset": 343181, "expr": ["EqIdVal QuestionId: 0x24F, Value: 0x0"]}

Record 654

ATX Telemetry Unit

Firmware Value

ATX Telemetry Unit in Watts or Percentage.

Opcode
OneOf
Question ID
0x251
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x384
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Watts
1Percentage

Default store records

Store IDStore labelValueOption label
0Standard0Watts

Record 655

Power Limit 4 Override

Firmware Value

Enable/Disable Power Limit 4 override.

Firmware help text

Enable/Disable Power Limit 4 override. If this option is disabled, BIOS will leave the default values for Power Limit 4.

Opcode
OneOf
Question ID
0x252
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x2a
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1Enabled

Default store records

Store IDStore labelValueOption label
0Standard0Disabled

Record 656

Power Limit 4

Firmware Value

Power Limit 4 in Milli Watts.

Firmware help text

Power Limit 4 in Milli Watts. BIOS will round to the nearest 1/8W when programming. For 12.50W, enter 12500. If the value is 0, BIOS leaves default value

Opcode
Numeric
Question ID
0x253
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x2b
Width
4 byte(s)
Range
0 to 4095875 step 125

Default store records

Store IDStore labelValueOption label
0Standard0

Visibility / conditions

  • {"condition_id": 236, "type": "SuppressIf", "offset": 343306, "expr": ["EqIdVal QuestionId: 0x252, Value: 0x0"]}

Record 657

Power Limit 4 Lock

Firmware Value

Power Limit 4 MSR 601h Lock.

Firmware help text

Power Limit 4 MSR 601h Lock. When enabled PL4 configurations are locked during OS. When disabled PL4 configuration can be changed during OS.

Opcode
OneOf
Question ID
0x254
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x2f
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Visibility / conditions

  • {"condition_id": 237, "type": "SuppressIf", "offset": 343353, "expr": ["EqIdVal QuestionId: 0x252, Value: 0x0"]}

Record 658

C states

Firmware Value

Enable/Disable CPU Power Management.

Firmware help text

Enable/Disable CPU Power Management. Allows CPU to go to C states when it's not 100% utilized.

Opcode
OneOf
Question ID
0x272d
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x14
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": 238, "type": "SuppressIf", "offset": 343396, "expr": ["EqIdVal QuestionId: 0x128E, Value: 0x0"]}

Record 659

Enhanced C-states

Firmware Value

Enable/Disable C1E.

Firmware help text

Enable/Disable C1E. When enabled, CPU will switch to minimum speed when all cores enter C-State.

Opcode
OneOf
Question ID
0x255
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x15
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Visibility / conditions

  • {"condition_id": 239, "type": "SuppressIf", "offset": 343445, "expr": ["EqIdVal QuestionId: 0x128E, Value: 0x0", "EqIdVal QuestionId: 0x272D, Value: 0x0", "Or", "EqIdVal QuestionId: 0x128F, Value: 0x0", "Or"]}

Record 660

C-State Auto Demotion

Firmware Value

Configure C-State Auto Demotion

Opcode
OneOf
Question ID
0x256
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x3e
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1C1Standard defaultManufacturing default

Visibility / conditions

  • {"condition_id": 240, "type": "SuppressIf", "offset": 343506, "expr": ["EqIdVal QuestionId: 0x128E, Value: 0x0", "EqIdVal QuestionId: 0x272D, Value: 0x0", "Or"]}

Record 661

C-State Un-demotion

Firmware Value

Configure C-State Un-demotion

Opcode
OneOf
Question ID
0x257
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x3f
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1C1Standard defaultManufacturing default

Visibility / conditions

  • {"condition_id": 240, "type": "SuppressIf", "offset": 343506, "expr": ["EqIdVal QuestionId: 0x128E, Value: 0x0", "EqIdVal QuestionId: 0x272D, Value: 0x0", "Or"]}

Record 662

Package C-State Demotion

Firmware Value

Package C-State Demotion

Opcode
OneOf
Question ID
0x258
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x40
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Visibility / conditions

  • {"condition_id": 240, "type": "SuppressIf", "offset": 343506, "expr": ["EqIdVal QuestionId: 0x128E, Value: 0x0", "EqIdVal QuestionId: 0x272D, Value: 0x0", "Or"]}

Record 663

Package C-State Un-demotion

Firmware Value

Package C-State Un-demotion

Opcode
OneOf
Question ID
0x259
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x41
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Visibility / conditions

  • {"condition_id": 240, "type": "SuppressIf", "offset": 343506, "expr": ["EqIdVal QuestionId: 0x128E, Value: 0x0", "EqIdVal QuestionId: 0x272D, Value: 0x0", "Or"]}

Record 664

CState Pre-Wake

Firmware Value

Disable - Sets bit 30 of POWER_CTL MSR(0x1FC) to 1 to disable the Cstate Pre-Wake

Opcode
OneOf
Question ID
0x25a
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x3d
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Visibility / conditions

  • {"condition_id": 240, "type": "SuppressIf", "offset": 343506, "expr": ["EqIdVal QuestionId: 0x128E, Value: 0x0", "EqIdVal QuestionId: 0x272D, Value: 0x0", "Or"]}

Record 665

IO MWAIT Redirection

Firmware Value

When set, will map IO_read instructions sent to IO registers PMG_IO_BASE_ADDRBASE+offset to MWAIT(offset)

Opcode
OneOf
Question ID
0x25b
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x48
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1Enabled

Default store records

Store IDStore labelValueOption label
0Standard0Disabled

Visibility / conditions

  • {"condition_id": 240, "type": "SuppressIf", "offset": 343506, "expr": ["EqIdVal QuestionId: 0x128E, Value: 0x0", "EqIdVal QuestionId: 0x272D, Value: 0x0", "Or"]}

Record 666

Package C State Limit

Firmware Value

Maximum Package C State Limit Setting.

Firmware help text

Maximum Package C State Limit Setting. Cpu Default: Leaves to Factory default value.Auto: Initializes to deepest available Package C State Limit.

Opcode
OneOf
Question ID
0x25c
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x4b
Width
1 byte(s)
Range
0 to 255 step 0
ValueLabelMarkers
0C0/C1
1C2
2C3
3C6
4C7
5C7S
6C8
7C9
8C10
254Cpu DefaultStandard default
255Auto

Default store records

Store IDStore labelValueOption label
0Standard0C0/C1

Visibility / conditions

  • {"condition_id": 240, "type": "SuppressIf", "offset": 343506, "expr": ["EqIdVal QuestionId: 0x128E, Value: 0x0", "EqIdVal QuestionId: 0x272D, Value: 0x0", "Or"]}

Record 667

Time Unit

Firmware Value

Unit of measurement for IRTL value - bits [12:10]

Opcode
OneOf
Question ID
0x25d
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x4c
Width
1 byte(s)
Range
0 to 5 step 0
ValueLabelMarkers
01 ns
132 ns
21024 nsStandard defaultManufacturing default
332768 ns
41048576 ns
533554432 ns

Visibility / conditions

  • {"condition_id": 240, "type": "SuppressIf", "offset": 343506, "expr": ["EqIdVal QuestionId: 0x128E, Value: 0x0", "EqIdVal QuestionId: 0x272D, Value: 0x0", "Or"]}

Record 668

Latency

Firmware Value

Interrupt Response Time Limit value- bits [9:0], Enter 0-1023

Opcode
Numeric
Question ID
0x25e
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x51
Width
2 byte(s)
Range
0 to 1023 step 1

Default store records

Store IDStore labelValueOption label
0Standard0

Visibility / conditions

  • {"condition_id": 240, "type": "SuppressIf", "offset": 343506, "expr": ["EqIdVal QuestionId: 0x128E, Value: 0x0", "EqIdVal QuestionId: 0x272D, Value: 0x0", "Or"]}

Record 669

Time Unit

Firmware Value

Unit of measurement for IRTL value - bits [12:10]

Opcode
OneOf
Question ID
0x25f
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x4d
Width
1 byte(s)
Range
0 to 5 step 0
ValueLabelMarkers
01 ns
132 ns
21024 nsStandard defaultManufacturing default
332768 ns
41048576 ns
533554432 ns

Visibility / conditions

  • {"condition_id": 240, "type": "SuppressIf", "offset": 343506, "expr": ["EqIdVal QuestionId: 0x128E, Value: 0x0", "EqIdVal QuestionId: 0x272D, Value: 0x0", "Or"]}

Record 670

Latency

Firmware Value

Interrupt Response Time Limit value- bits [9:0], Enter 0-1023

Opcode
Numeric
Question ID
0x260
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x53
Width
2 byte(s)
Range
0 to 1023 step 1

Default store records

Store IDStore labelValueOption label
0Standard0

Visibility / conditions

  • {"condition_id": 240, "type": "SuppressIf", "offset": 343506, "expr": ["EqIdVal QuestionId: 0x128E, Value: 0x0", "EqIdVal QuestionId: 0x272D, Value: 0x0", "Or"]}

Record 671

Time Unit

Firmware Value

Unit of measurement for IRTL value - bits [12:10]

Opcode
OneOf
Question ID
0x261
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x4e
Width
1 byte(s)
Range
0 to 5 step 0
ValueLabelMarkers
01 ns
132 ns
21024 nsStandard defaultManufacturing default
332768 ns
41048576 ns
533554432 ns

Visibility / conditions

  • {"condition_id": 240, "type": "SuppressIf", "offset": 343506, "expr": ["EqIdVal QuestionId: 0x128E, Value: 0x0", "EqIdVal QuestionId: 0x272D, Value: 0x0", "Or"]}
  • {"condition_id": 241, "type": "SuppressIf", "offset": 344028, "expr": ["EqIdVal QuestionId: 0x118C, Value: 0x2", "Not"]}

Record 672

Latency

Firmware Value

Interrupt Response Time Limit value- bits [9:0], Enter 0-1023

Opcode
Numeric
Question ID
0x262
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x55
Width
2 byte(s)
Range
0 to 1023 step 1

Default store records

Store IDStore labelValueOption label
0Standard0

Visibility / conditions

  • {"condition_id": 240, "type": "SuppressIf", "offset": 343506, "expr": ["EqIdVal QuestionId: 0x128E, Value: 0x0", "EqIdVal QuestionId: 0x272D, Value: 0x0", "Or"]}
  • {"condition_id": 241, "type": "SuppressIf", "offset": 344028, "expr": ["EqIdVal QuestionId: 0x118C, Value: 0x2", "Not"]}

Record 673

Time Unit

Firmware Value

Unit of measurement for IRTL value - bits [12:10]

Opcode
OneOf
Question ID
0x263
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x4f
Width
1 byte(s)
Range
0 to 5 step 0
ValueLabelMarkers
01 ns
132 ns
21024 nsStandard defaultManufacturing default
332768 ns
41048576 ns
533554432 ns

Visibility / conditions

  • {"condition_id": 240, "type": "SuppressIf", "offset": 343506, "expr": ["EqIdVal QuestionId: 0x128E, Value: 0x0", "EqIdVal QuestionId: 0x272D, Value: 0x0", "Or"]}
  • {"condition_id": 241, "type": "SuppressIf", "offset": 344028, "expr": ["EqIdVal QuestionId: 0x118C, Value: 0x2", "Not"]}

Record 674

Latency

Firmware Value

Interrupt Response Time Limit value- bits [9:0], Enter 0-1023

Opcode
Numeric
Question ID
0x264
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x57
Width
2 byte(s)
Range
0 to 1023 step 1

Default store records

Store IDStore labelValueOption label
0Standard0

Visibility / conditions

  • {"condition_id": 240, "type": "SuppressIf", "offset": 343506, "expr": ["EqIdVal QuestionId: 0x128E, Value: 0x0", "EqIdVal QuestionId: 0x272D, Value: 0x0", "Or"]}
  • {"condition_id": 241, "type": "SuppressIf", "offset": 344028, "expr": ["EqIdVal QuestionId: 0x118C, Value: 0x2", "Not"]}

Record 675

Time Unit

Firmware Value

Unit of measurement for IRTL value - bits [12:10]

Opcode
OneOf
Question ID
0x265
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x50
Width
1 byte(s)
Range
0 to 5 step 0
ValueLabelMarkers
01 ns
132 ns
21024 nsStandard defaultManufacturing default
332768 ns
41048576 ns
533554432 ns

Visibility / conditions

  • {"condition_id": 240, "type": "SuppressIf", "offset": 343506, "expr": ["EqIdVal QuestionId: 0x128E, Value: 0x0", "EqIdVal QuestionId: 0x272D, Value: 0x0", "Or"]}
  • {"condition_id": 241, "type": "SuppressIf", "offset": 344028, "expr": ["EqIdVal QuestionId: 0x118C, Value: 0x2", "Not"]}

Record 676

Latency

Firmware Value

Interrupt Response Time Limit value- bits [9:0], Enter 0-1023

Opcode
Numeric
Question ID
0x266
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x59
Width
2 byte(s)
Range
0 to 1023 step 1

Default store records

Store IDStore labelValueOption label
0Standard0

Visibility / conditions

  • {"condition_id": 240, "type": "SuppressIf", "offset": 343506, "expr": ["EqIdVal QuestionId: 0x128E, Value: 0x0", "EqIdVal QuestionId: 0x272D, Value: 0x0", "Or"]}
  • {"condition_id": 241, "type": "SuppressIf", "offset": 344028, "expr": ["EqIdVal QuestionId: 0x118C, Value: 0x2", "Not"]}

Record 677

Thermal Monitor

Firmware Value

Enable/Disable Thermal Monitor

Opcode
OneOf
Question ID
0x267
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x42
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 678

Interrupt Redirection Mode Selection

Firmware Value

Interrupt Redirection Mode Select for Logical Interrupts

Opcode
OneOf
Question ID
0x268
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x49
Width
1 byte(s)
Range
0 to 7 step 0
ValueLabelMarkers
0Fixed PriorityStandard defaultManufacturing default
1Round robin
2Hash Vector
7No Change

Record 679

Timed MWAIT

Firmware Value

Enable/Disable Timed MWAIT Support

Opcode
OneOf
Question ID
0x269
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x47
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Visibility / conditions

  • {"condition_id": 242, "type": "SuppressIf", "offset": 344421, "expr": ["EqIdVal QuestionId: 0x128D, Value: 0x0"]}

Record 681

EC Turbo Control Mode

Firmware Value

Enable/Disable EC Turbo Control mode

Opcode
OneOf
Question ID
0x26b
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0xc7
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Visibility / conditions

  • {"condition_id": 243, "type": "SuppressIf", "offset": 344479, "expr": ["EqIdVal QuestionId: 0x11BB, Value: 0x1", "Not", "EqIdVal QuestionId: 0x11BB, Value: 0x6", "Not", "And", "EqIdVal QuestionId: 0x11BB, Value: 0x5", "Not", "And", "EqIdVal QuestionId: 0x2A3D, Value: 0x0", "Or"]}

Record 682

AC Brick Capacity

Firmware Value

Specify the AC Brick capacity

Opcode
OneOf
Question ID
0x26c
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0xc8
Width
1 byte(s)
Range
1 to 3 step 0
ValueLabelMarkers
190W AC BrickStandard defaultManufacturing default
265W AC Brick
375W AC Brick

Visibility / conditions

  • {"condition_id": 244, "type": "SuppressIf", "offset": 344554, "expr": ["EqIdVal QuestionId: 0x26B, Value: 0x0"]}

Record 683

EC Polling Period

Firmware Value

Count 1 to 255 for a range of 10ms to 2.55 seconds (1 count = 10ms)

Opcode
Numeric
Question ID
0x26d
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0xc9
Width
1 byte(s)
Range
1 to 255 step 1

Default store records

Store IDStore labelValueOption label
0Standard1

Visibility / conditions

  • {"condition_id": 244, "type": "SuppressIf", "offset": 344554, "expr": ["EqIdVal QuestionId: 0x26B, Value: 0x0"]}

Record 684

EC Guard Band Value

Firmware Value

Count 1 to 20 for a range of 1 watt to 20 watts

Opcode
Numeric
Question ID
0x26e
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0xca
Width
1 byte(s)
Range
0 to 20 step 1

Default store records

Store IDStore labelValueOption label
0Standard0

Visibility / conditions

  • {"condition_id": 244, "type": "SuppressIf", "offset": 344554, "expr": ["EqIdVal QuestionId: 0x26B, Value: 0x0"]}

Record 685

EC Algorithm Selection

Firmware Value

Count 1 to 10 for Algorithm Selection

Opcode
Numeric
Question ID
0x26f
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0xcb
Width
1 byte(s)
Range
1 to 10 step 1

Default store records

Store IDStore labelValueOption label
0Standard1

Visibility / conditions

  • {"condition_id": 244, "type": "SuppressIf", "offset": 344554, "expr": ["EqIdVal QuestionId: 0x26B, Value: 0x0"]}

Record 686

Energy Performance Gain

Firmware Value

Enable/disable Energy Performance Gain.

Opcode
OneOf
Question ID
0x270
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x75
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 687

EPG DIMM Idd3N

Firmware Value

Active standby current (Idd3N) in milliamps from datasheet.

Firmware help text

Active standby current (Idd3N) in milliamps from datasheet. Must be calculated on a per DIMM basis.

Opcode
Numeric
Question ID
0x271
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x76
Width
2 byte(s)
Range
0 to 2000 step 1

Default store records

Store IDStore labelValueOption label
0Standard26

Visibility / conditions

  • {"condition_id": 245, "type": "GrayOutIf", "offset": 344712, "expr": ["EqIdVal QuestionId: 0x270, Value: 0x0"]}

Record 688

EPG DIMM Idd3P

Firmware Value

Active power-down current (Idd3P) in milliamps from datasheet.

Firmware help text

Active power-down current (Idd3P) in milliamps from datasheet. Must be calculated on a per DIMM basis.

Opcode
Numeric
Question ID
0x272
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x78
Width
2 byte(s)
Range
0 to 2000 step 1

Default store records

Store IDStore labelValueOption label
0Standard11

Visibility / conditions

  • {"condition_id": 245, "type": "GrayOutIf", "offset": 344712, "expr": ["EqIdVal QuestionId: 0x270, Value: 0x0"]}

Record 691

Dual Tau Boost

Firmware Value

Enable Dual Tau Boost feature.

Firmware help text

Enable Dual Tau Boost feature. This is only applicable for Desktop 35W/65W/125W sku. When DPTF is enabled this feature is ignored.

Opcode
OneOf
Question ID
0x275
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x2ad
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Visibility / conditions

  • {"condition_id": 246, "type": "SuppressIf", "offset": 344810, "expr": ["EqIdVal QuestionId: 0x11BB, Value: 0x2", "Not"]}
  • {"condition_id": 247, "type": "GrayOutIf", "offset": 344822, "expr": ["EqIdVal QuestionId: 0x375, Value: 0x1"]}