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

CPU, Power, Memory

Platform Voltage Overrides

Platform Voltage Overrides firmware setup page decoded from AMI HII/IFR resources.

Form ID
0x27f4
Records
14
Parents
OverClocking Performance Menu
Path
Setup / Advanced / OverClocking Performance Menu / Platform Voltage Overrides / Setup / Advanced / Advanced / OverClocking Performance Menu / Platform Voltage Overrides

Record 1348

Vcc1p8 Override Enable

Firmware Value

Overrides the Vcc1p8 voltage using SMBUS/PMBUS interface of VRM.

Firmware help text

Overrides the Vcc1p8 voltage using SMBUS/PMBUS interface of VRM. Use the next option for exact voltage configuration

Form
Platform Voltage Overrides
Opcode
OneOf
Question ID
0x4ca
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x321
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

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Record 1349

Vcc1p8

Firmware Value

Range of Vcc1p8 voltage - Default is 1800 mV

Form
Platform Voltage Overrides
Opcode
Numeric
Question ID
0x4cb
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x322
Width
2 byte(s)
Range
800 to 2550 step 10

Default store records

Store IDStore labelValueOption label
0Standard1800

Visibility / conditions

  • {"condition_id": 524, "type": "SuppressIf", "offset": 373799, "expr": ["EqIdVal QuestionId: 0x4CA, Value: 0x0"]}

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Record 1350

Vcc1p05 Override Enable

Firmware Value

Overrides the Vcc1p05 voltage using SMBUS/PMBUS interface of VRM.

Firmware help text

Overrides the Vcc1p05 voltage using SMBUS/PMBUS interface of VRM. Use the next option for exact voltage configuration

Form
Platform Voltage Overrides
Opcode
OneOf
Question ID
0x4cc
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x324
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

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Record 1351

Vcc1p05

Firmware Value

Range of Vcc1p05 voltage - Default is 1050 mV

Form
Platform Voltage Overrides
Opcode
Numeric
Question ID
0x4cd
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x325
Width
2 byte(s)
Range
800 to 2550 step 10

Default store records

Store IDStore labelValueOption label
0Standard1050

Visibility / conditions

  • {"condition_id": 525, "type": "SuppressIf", "offset": 373871, "expr": ["EqIdVal QuestionId: 0x4CC, Value: 0x0"]}

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Record 1352

VccDD2 Override Enable

Firmware Value

Overrides the VccDD2 voltage using SMBUS/PMBUS interface of VRM.

Firmware help text

Overrides the VccDD2 voltage using SMBUS/PMBUS interface of VRM. Use the next option for exact voltage configuration

Form
Platform Voltage Overrides
Opcode
OneOf
Question ID
0x4ce
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x327
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

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Record 1353

VccDD2

Firmware Value

Range of VccDD2 voltage - Default is 1100 mV

Form
Platform Voltage Overrides
Opcode
Numeric
Question ID
0x4cf
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x328
Width
2 byte(s)
Range
800 to 2550 step 10

Default store records

Store IDStore labelValueOption label
0Standard1100

Visibility / conditions

  • {"condition_id": 526, "type": "SuppressIf", "offset": 373943, "expr": ["EqIdVal QuestionId: 0x4CE, Value: 0x0"]}

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Record 1354

VCCIN AUX CPU Overrides Enable

Firmware Value

VCCIN AUX CPU Voltage Overrides from SMBUS/PMBUS interface of VRM.

Firmware help text

VCCIN AUX CPU Voltage Overrides from SMBUS/PMBUS interface of VRM. Use the next option for exact voltage configuration

Form
Platform Voltage Overrides
Opcode
OneOf
Question ID
0x4d0
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x336
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

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Record 1355

VCCIN AUX CPU

Firmware Value

Voltage Range of VCCIN AUX CPU from 1620mV - 1900mV; Default is 1800 mV

Form
Platform Voltage Overrides
Opcode
Numeric
Question ID
0x4d1
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x337
Width
2 byte(s)
Range
1620 to 1900 step 10

Default store records

Store IDStore labelValueOption label
0Standard1800

Visibility / conditions

  • {"condition_id": 527, "type": "SuppressIf", "offset": 374024, "expr": ["EqIdVal QuestionId: 0x4D0, Value: 0x0"]}

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Record 1356

RichTek VccIA Control Overrides

Firmware Value

VccIA Voltage can be overrides from Richtek SMBUS/PMBUS VR.

Firmware help text

VccIA Voltage can be overrides from Richtek SMBUS/PMBUS VR. Use the next option for exact voltage configuration

Form
Platform Voltage Overrides
Opcode
OneOf
Question ID
0x4d2
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x339
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

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Record 1357

Fixed VID Mode

Firmware Value

Fixed VID Mode Enabled for the VccIA/VccGT Voltage rail Overrides from Richtek SMBUS/PMBUS VR.

Firmware help text

Fixed VID Mode Enabled for the VccIA/VccGT Voltage rail Overrides from Richtek SMBUS/PMBUS VR. When Disabled, voltage rail will use IMVP from SVID BUS.

Form
Platform Voltage Overrides
Opcode
OneOf
Question ID
0x4d3
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x33b
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Visibility / conditions

  • {"condition_id": 528, "type": "SuppressIf", "offset": 374105, "expr": ["EqIdVal QuestionId: 0x4D2, Value: 0x0"]}

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Record 1358

VccIA (mV)

Firmware Value

Voltage Range of RichTek VccIA from 250mV - 2170mV; Default is 1200 mV

Form
Platform Voltage Overrides
Opcode
Numeric
Question ID
0x4d4
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x33d
Width
2 byte(s)
Range
250 to 2170 step 10

Default store records

Store IDStore labelValueOption label
0Standard1200

Visibility / conditions

  • {"condition_id": 528, "type": "SuppressIf", "offset": 374105, "expr": ["EqIdVal QuestionId: 0x4D2, Value: 0x0"]}
  • {"condition_id": 529, "type": "SuppressIf", "offset": 374146, "expr": ["EqIdVal QuestionId: 0x4D3, Value: 0x0"]}

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Record 1359

RichTek VccGT Control Overrides

Firmware Value

VccGT Voltage can be overrides from Richtek SMBUS/PMBUS VR.

Firmware help text

VccGT Voltage can be overrides from Richtek SMBUS/PMBUS VR. Use the next option for exact voltage configuration

Form
Platform Voltage Overrides
Opcode
OneOf
Question ID
0x4d5
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x33a
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

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Record 1360

Fixed VID Mode

Firmware Value

Fixed VID Mode Enabled for the VccIA/VccGT Voltage rail Overrides from Richtek SMBUS/PMBUS VR.

Firmware help text

Fixed VID Mode Enabled for the VccIA/VccGT Voltage rail Overrides from Richtek SMBUS/PMBUS VR. When Disabled, voltage rail will use IMVP from SVID BUS.

Form
Platform Voltage Overrides
Opcode
OneOf
Question ID
0x4d6
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x33c
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Visibility / conditions

  • {"condition_id": 530, "type": "SuppressIf", "offset": 374220, "expr": ["EqIdVal QuestionId: 0x4D5, Value: 0x0"]}

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Record 1361

VccGT (mV)

Firmware Value

Voltage Range of RichTek VccGT from 250mV - 2170mV; Default is 1200 mV

Form
Platform Voltage Overrides
Opcode
Numeric
Question ID
0x4d7
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x33f
Width
2 byte(s)
Range
250 to 2170 step 10

Default store records

Store IDStore labelValueOption label
0Standard1200

Visibility / conditions

  • {"condition_id": 530, "type": "SuppressIf", "offset": 374220, "expr": ["EqIdVal QuestionId: 0x4D5, Value: 0x0"]}
  • {"condition_id": 531, "type": "SuppressIf", "offset": 374261, "expr": ["EqIdVal QuestionId: 0x4D6, Value: 0x0"]}

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