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

Firmware Menus

Advanced Debug Settings

Advanced Debug Settings firmware setup page decoded from AMI HII/IFR resources.

Form ID
0x2820
Records
25
Path
Setup / Advanced / Debug Settings / Advanced Debug Settings / Setup / Advanced / Advanced / Debug Settings / Advanced Debug Settings

Record 1505

USB3 Type-C UFP2DFP Kernel/Platform Debug Support

Firmware Value

This BIOS option enables kernel and platform debug for USB3 interface over a UFP Type-C receptacle, select 'No Change' will do nothing to UFP2DFP setting

Opcode
OneOf
Question ID
0x557
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0xa
Width
1 byte(s)
Range
0 to 2 step 0
ValueLabelMarkers
0Disabled
1Enabled
2No ChangeStandard defaultManufacturing default

Record 1506

USB DbC Enable Mode

Firmware Value

Disabled:Clear both USB2/3DBCEN USB2:Set USB2DBCEN USB3:Set USB3DBCEN Both:Set both USB2/3DBCEN No Change:Comply with HW value

Firmware help text

Disabled:Clear both USB2/3DBCEN USB2:Set USB2DBCEN USB3:Set USB3DBCEN Both:Set both USB2/3DBCEN No Change:Comply with HW value

Opcode
OneOf
Question ID
0x558
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x73f
Width
1 byte(s)
Range
0 to 4 step 0
ValueLabelMarkers
0Disabled
1USB2
2USB3
3Both
4No ChangeStandard defaultManufacturing default

Record 1507

DCI Enable

Firmware Value

Determine if to enable DCI debug from host

Opcode
OneOf
Question ID
0x559
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x73e
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Visibility / conditions

  • {"condition_id": 604, "type": "GrayOutIf", "offset": 380184, "expr": ["EqIdVal QuestionId: 0x2819, Value: 0x7", "Not"]}
  • {"condition_id": 605, "type": "SuppressIf", "offset": 380196, "expr": ["EqIdVal QuestionId: 0x2819, Value: 0x0"]}

Record 1508

PCH Trace Hub Enable Mode

Firmware Value

Select 'Host Debugger' if Trace Hub is used with host debugger tool or 'Target Debugger' if Trace Hub is used by target debugger software.

Firmware help text

Select 'Host Debugger' if Trace Hub is used with host debugger tool or 'Target Debugger' if Trace Hub is used by target debugger software. Note: If 'Host Debugger' is selected, Platform Debug Consent has to be ENABLED because DCI is one of the primary trace data output paths.

Opcode
OneOf
Question ID
0x55a
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x714
Width
1 byte(s)
Range
0 to 2 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Target Debugger
2Host Debugger

Visibility / conditions

  • {"condition_id": 604, "type": "GrayOutIf", "offset": 380184, "expr": ["EqIdVal QuestionId: 0x2819, Value: 0x7", "Not"]}
  • {"condition_id": 606, "type": "GrayOutIf", "offset": 380239, "expr": ["EqIdVal QuestionId: 0x124D, Value: 0x1"]}

Record 1509

PCH TH Mem Buffer Size 0

Firmware Value

Select size of memory region 0 buffer.

Firmware help text

Select size of memory region 0 buffer. Choose None/OS if OS-supported memory or trace forwarding is desired Note : Limit of total buffer size (PCH + CPU) is 512MB when iTBT disabled, 256MB when iTBT enabled

Opcode
OneOf
Question ID
0x55b
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x715
Width
1 byte(s)
Range
0 to 6 step 0
ValueLabelMarkers
0None/OSStandard defaultManufacturing default
11MB
28MB
364MB
4128MB
5256MB
6512MB

Visibility / conditions

  • {"condition_id": 604, "type": "GrayOutIf", "offset": 380184, "expr": ["EqIdVal QuestionId: 0x2819, Value: 0x7", "Not"]}
  • {"condition_id": 607, "type": "SuppressIf", "offset": 380289, "expr": ["EqIdVal QuestionId: 0x55A, Value: 0x0"]}

Record 1510

PCH TH Mem Buffer Size 1

Firmware Value

Select size of memory region 1 buffer.

Firmware help text

Select size of memory region 1 buffer. Choose None/OS if OS-supported memory or trace forwarding is desired Note : Limit of total buffer size (PCH + CPU) is 512MB when iTBT disabled, 256MB when iTBT enabled

Opcode
OneOf
Question ID
0x55c
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x716
Width
1 byte(s)
Range
0 to 6 step 0
ValueLabelMarkers
0None/OSStandard defaultManufacturing default
11MB
28MB
364MB
4128MB
5256MB
6512MB

Visibility / conditions

  • {"condition_id": 604, "type": "GrayOutIf", "offset": 380184, "expr": ["EqIdVal QuestionId: 0x2819, Value: 0x7", "Not"]}
  • {"condition_id": 607, "type": "SuppressIf", "offset": 380289, "expr": ["EqIdVal QuestionId: 0x55A, Value: 0x0"]}

Record 1511

CPU Trace Hub Enable Mode

Firmware Value

Select 'Host Debugger' if Trace Hub is used with host debugger tool or 'Target Debugger' if Trace Hub is used by target debugger software.

Firmware help text

Select 'Host Debugger' if Trace Hub is used with host debugger tool or 'Target Debugger' if Trace Hub is used by target debugger software. Note: If 'Host Debugger' is selected, Platform Debug Consent has to be ENABLED because DCI is one of the primary trace data output paths.

Opcode
OneOf
Question ID
0x55d
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x83
Width
1 byte(s)
Range
0 to 2 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Target Debugger
2Host Debugger

Visibility / conditions

  • {"condition_id": 604, "type": "GrayOutIf", "offset": 380184, "expr": ["EqIdVal QuestionId: 0x2819, Value: 0x7", "Not"]}

Record 1512

CPU TH Mem Buffer Size 0

Firmware Value

Select size of memory region 0 buffer.

Firmware help text

Select size of memory region 0 buffer. Choose None/OS if OS-supported memory or trace forwarding is desired Note : Limit of total buffer size (PCH + CPU) is 512MB when iTBT disabled, 256MB when iTBT enabled

Opcode
OneOf
Question ID
0x55e
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x84
Width
1 byte(s)
Range
0 to 6 step 0
ValueLabelMarkers
0None/OSStandard defaultManufacturing default
11MB
28MB
364MB
4128MB
5256MB
6512MB

Visibility / conditions

  • {"condition_id": 604, "type": "GrayOutIf", "offset": 380184, "expr": ["EqIdVal QuestionId: 0x2819, Value: 0x7", "Not"]}
  • {"condition_id": 608, "type": "SuppressIf", "offset": 380475, "expr": ["EqIdVal QuestionId: 0x55D, Value: 0x0"]}

Record 1513

CPU TH Mem Buffer Size 1

Firmware Value

Select size of memory region 1 buffer.

Firmware help text

Select size of memory region 1 buffer. Choose None/OS if OS-supported memory or trace forwarding is desired Note : Limit of total buffer size (PCH + CPU) is 512MB when iTBT disabled, 256MB when iTBT enabled

Opcode
OneOf
Question ID
0x55f
VarStore
SaSetup
VarStore GUID
72C5E28C-7783-43A1-8767-FAD73FCCAFA4
Offset
0x85
Width
1 byte(s)
Range
0 to 6 step 0
ValueLabelMarkers
0None/OSStandard defaultManufacturing default
11MB
28MB
364MB
4128MB
5256MB
6512MB

Visibility / conditions

  • {"condition_id": 604, "type": "GrayOutIf", "offset": 380184, "expr": ["EqIdVal QuestionId: 0x2819, Value: 0x7", "Not"]}
  • {"condition_id": 608, "type": "SuppressIf", "offset": 380475, "expr": ["EqIdVal QuestionId: 0x55D, Value: 0x0"]}
  • {"condition_id": 609, "type": "SuppressIf", "offset": 380551, "expr": ["EqIdVal QuestionId: 0x124C, Value: 0x1"]}

Record 1514

CPU Run Control

Firmware Value

Enable/Disable CPU Run Control Support; No Change : Comply with HW value

Opcode
OneOf
Question ID
0x560
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x111
Width
1 byte(s)
Range
0 to 2 step 0
ValueLabelMarkers
0Disabled
1Enabled
2No ChangeStandard defaultManufacturing default

Visibility / conditions

  • {"condition_id": 610, "type": "SuppressIf", "offset": 380633, "expr": ["EqIdVal QuestionId: 0x124B, Value: 0x0"]}

Record 1515

CPU Run Control Lock

Firmware Value

Enable/Disable CPU Run Control Lock

Opcode
OneOf
Question ID
0x561
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x112
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Visibility / conditions

  • {"condition_id": 610, "type": "SuppressIf", "offset": 380633, "expr": ["EqIdVal QuestionId: 0x124B, Value: 0x0"]}
  • {"condition_id": 611, "type": "SuppressIf", "offset": 380681, "expr": ["EqIdVal QuestionId: 0x560, Value: 0x2"]}

Record 1516

USB Overcurrent Override for VISA

Firmware Value

This option overrides USB Over Current enablement state that USB OC will be disabled after enabling this option.

Firmware help text

This option overrides USB Over Current enablement state that USB OC will be disabled after enabling this option. Enable when VISA pin is muxed with USB OC

Opcode
OneOf
Question ID
0x562
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0xb
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Visibility / conditions

  • {"condition_id": 612, "type": "GrayOutIf", "offset": 380726, "expr": ["EqIdVal QuestionId: 0x124A, Value: 0x1"]}

Record 1517

Processor trace memory allocation

Firmware Value

Disable or Select Processor trace memory region Size: from 4KB ~ 128MB

Opcode
OneOf
Question ID
0x563
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x122
Width
1 byte(s)
Range
0 to 255 step 0
ValueLabelMarkers
255DisabledStandard defaultManufacturing default
04KB
18KB
216KB
332KB
464KB
5128KB
6256KB
7512KB
81MB
92MB
104MB
118MB
1216MB
1332MB
1464MB
15128MB

Visibility / conditions

  • {"condition_id": 613, "type": "SuppressIf", "offset": 380769, "expr": ["EqIdVal QuestionId: 0x1249, Value: 0x0"]}

Record 1518

Processor trace

Firmware Value

Enable/Disable processor trace feature from CPU MSR.

Firmware help text

Enable/Disable processor trace feature from CPU MSR. Enabling this feature will immediately start trace collection.

Opcode
OneOf
Question ID
0x564
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x123
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Visibility / conditions

  • {"condition_id": 614, "type": "SuppressIf", "offset": 380917, "expr": ["EqIdVal QuestionId: 0x1249, Value: 0x0", "EqIdVal QuestionId: 0x563, Value: 0xFF", "Or"]}

Record 1519

Processor Trace OutPut Scheme

Firmware Value

Select Single Range Output scheme or ToPA table Output scheme

Opcode
OneOf
Question ID
0x565
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x121
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Single Range OutputStandard defaultManufacturing default
1ToPA Output

Visibility / conditions

  • {"condition_id": 614, "type": "SuppressIf", "offset": 380917, "expr": ["EqIdVal QuestionId: 0x1249, Value: 0x0", "EqIdVal QuestionId: 0x563, Value: 0xFF", "Or"]}

Record 1520

SMM Processor Trace

Firmware Value

Enable/Disable usage of Processor Trace in SMM

Opcode
OneOf
Question ID
0x566
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x22e
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Visibility / conditions

  • {"condition_id": 614, "type": "SuppressIf", "offset": 380917, "expr": ["EqIdVal QuestionId: 0x1249, Value: 0x0", "EqIdVal QuestionId: 0x563, Value: 0xFF", "Or"]}

Record 1521

JTAG C10 Power Gate

Firmware Value

When Enabled, JTAG is power gated in C10 state.

Firmware help text

When Enabled, JTAG is power gated in C10 state. When Disabled, keeps the JTAG power up during C10 and deeper power states for debug purpose.

Opcode
OneOf
Question ID
0x567
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x8
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
1Disabled
0EnabledStandard defaultManufacturing default

Visibility / conditions

  • {"condition_id": 615, "type": "GrayOutIf", "offset": 381036, "expr": ["EqIdVal QuestionId: 0x1248, Value: 0x1"]}

Record 1522

Three Strike Counter

Firmware Value

Enable/Disable Three Strike Counter

Opcode
OneOf
Question ID
0x568
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x125
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
1Disabled
0EnabledStandard defaultManufacturing default

Record 1523

CrashLog Feature

Firmware Value

The feature helps collecting crash data from PMC SSRAM

Opcode
OneOf
Question ID
0x569
VarStore
Setup
VarStore GUID
EC87D643-EBA4-4BB5-A1E5-3F3E36B20DA9
Offset
0x859
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Record 1524

CrashLog On All Reset

Firmware Value

Option to invoke CrashLog collection on all reset

Opcode
OneOf
Question ID
0x56a
VarStore
Setup
VarStore GUID
EC87D643-EBA4-4BB5-A1E5-3F3E36B20DA9
Offset
0x85a
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Visibility / conditions

  • {"condition_id": 616, "type": "SuppressIf", "offset": 381145, "expr": ["EqIdVal QuestionId: 0x569, Value: 0x0"]}

Record 1525

CrashLog Rearm Enable

Firmware Value

Option to invoke crashlog re-arm

Opcode
OneOf
Question ID
0x56b
VarStore
Setup
VarStore GUID
EC87D643-EBA4-4BB5-A1E5-3F3E36B20DA9
Offset
0x85c
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0Disabled
1EnabledStandard defaultManufacturing default

Visibility / conditions

  • {"condition_id": 617, "type": "SuppressIf", "offset": 381188, "expr": ["EqIdVal QuestionId: 0x569, Value: 0x0"]}

Record 1526

CrashLog Clear Enable

Firmware Value

Option to invoke CrashLog clear

Opcode
OneOf
Question ID
0x56c
VarStore
Setup
VarStore GUID
EC87D643-EBA4-4BB5-A1E5-3F3E36B20DA9
Offset
0x85b
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Visibility / conditions

  • {"condition_id": 618, "type": "SuppressIf", "offset": 381231, "expr": ["EqIdVal QuestionId: 0x569, Value: 0x0"]}

Record 1527

CrashLog GPRs

Firmware Value

Helps collecting crash data from PMC SSRAM.

Firmware help text

Helps collecting crash data from PMC SSRAM. Enabling this may expose personal or confidential information that may be held in the GPRs at the time of the Crash trigger

Opcode
OneOf
Question ID
0x56d
VarStore
CpuSetup
VarStore GUID
B08F97FF-E6E8-4193-A997-5E9E9B0ADB32
Offset
0x314
Width
1 byte(s)
Range
0 to 2 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled
2Gprs Enabled, Smm Gprs Disabled

Visibility / conditions

  • {"condition_id": 618, "type": "SuppressIf", "offset": 381231, "expr": ["EqIdVal QuestionId: 0x569, Value: 0x0"]}
  • {"condition_id": 619, "type": "SuppressIf", "offset": 381272, "expr": ["EqIdVal QuestionId: 0x1247, Value: 0x0", "EqIdVal QuestionId: 0x1246, Value: 0x670", "And"]}

Record 1528

PMC Debug Message Enable

Firmware Value

When Enabled, PMC HW will send debug messages to trace hub; When Disabled, PMC HW will never send debug meesages to trace hub.

Firmware help text

When Enabled, PMC HW will send debug messages to trace hub; When Disabled, PMC HW will never send debug meesages to trace hub. Noted: When Enabled, may not enter S0ix

Opcode
OneOf
Question ID
0x56e
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x741
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 1529

Delayed Authentication Mode

Firmware Value

Enable/Disable Delayed Authentication Mode

Opcode
OneOf
Question ID
0x281a
VarStore
MeSetupStorage
VarStore GUID
5432122D-D034-49D2-A6DE-65A829EB4C74
Offset
0x9
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard default
1Enabled

Visibility / conditions

  • {"condition_id": 620, "type": "GrayOutIf", "offset": 381367, "expr": ["EqIdVal QuestionId: 0x1245, Value: 0x1"]}