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

Onboard Devices

Serial IO I2C5 Settings

Serial IO I2C5 Settings firmware setup page decoded from AMI HII/IFR resources.

Form ID
0x8a
Records
14
Path
Setup / Chipset / PCH-IO Configuration / SerialIo Configuration / Serial IO I2C5 Settings

Record 4509

StandardSpeed SCL High

Firmware Value

Default: 612 [DEC] Minimum: 1 [DEC] Maximum: 65535 [DEC]

Firmware help text

Default: 612 [DEC] Minimum: 1 [DEC] Maximum: 65535 [DEC]

Opcode
Numeric
Question ID
0x108c
VarStore
Setup
VarStore GUID
EC87D643-EBA4-4BB5-A1E5-3F3E36B20DA9
Offset
0x670
Width
2 byte(s)
Range
0 to 65535 step 0

Default store records

Store IDStore labelValueOption label
0Standard706

Visibility / conditions

  • {"condition_id": 1781, "type": "SuppressIf", "offset": 521938, "expr": ["EqIdVal QuestionId: 0x1039, Value: 0x0"]}

Record 4510

StandardSpeed SCL Low

Firmware Value

Default: 706 [DEC] Minimum: 1 [DEC] Maximum: 65535 [DEC]

Firmware help text

Default: 706 [DEC] Minimum: 1 [DEC] Maximum: 65535 [DEC]

Opcode
Numeric
Question ID
0x108d
VarStore
Setup
VarStore GUID
EC87D643-EBA4-4BB5-A1E5-3F3E36B20DA9
Offset
0x672
Width
2 byte(s)
Range
0 to 65535 step 0

Default store records

Store IDStore labelValueOption label
0Standard612

Visibility / conditions

  • {"condition_id": 1781, "type": "SuppressIf", "offset": 521938, "expr": ["EqIdVal QuestionId: 0x1039, Value: 0x0"]}

Record 4511

StandardSpeed SDA Hold

Firmware Value

Default: 30 [DEC] Minimum: 1 [DEC] Maximum: 65535 [DEC]

Firmware help text

Default: 30 [DEC] Minimum: 1 [DEC] Maximum: 65535 [DEC]

Opcode
Numeric
Question ID
0x108e
VarStore
Setup
VarStore GUID
EC87D643-EBA4-4BB5-A1E5-3F3E36B20DA9
Offset
0x674
Width
2 byte(s)
Range
0 to 65535 step 0

Default store records

Store IDStore labelValueOption label
0Standard30

Visibility / conditions

  • {"condition_id": 1781, "type": "SuppressIf", "offset": 521938, "expr": ["EqIdVal QuestionId: 0x1039, Value: 0x0"]}

Record 4512

FastSpeed SCL High

Firmware Value

Default: 110 [DEC] Minimum: 1 [DEC] Maximum: 65535 [DEC]

Firmware help text

Default: 110 [DEC] Minimum: 1 [DEC] Maximum: 65535 [DEC]

Opcode
Numeric
Question ID
0x108f
VarStore
Setup
VarStore GUID
EC87D643-EBA4-4BB5-A1E5-3F3E36B20DA9
Offset
0x676
Width
2 byte(s)
Range
0 to 65535 step 0

Default store records

Store IDStore labelValueOption label
0Standard110

Visibility / conditions

  • {"condition_id": 1781, "type": "SuppressIf", "offset": 521938, "expr": ["EqIdVal QuestionId: 0x1039, Value: 0x0"]}

Record 4513

FastSpeed SCL Low

Firmware Value

Default: 207 [DEC] Minimum: 1 [DEC] Maximum: 65535 [DEC]

Firmware help text

Default: 207 [DEC] Minimum: 1 [DEC] Maximum: 65535 [DEC]

Opcode
Numeric
Question ID
0x1090
VarStore
Setup
VarStore GUID
EC87D643-EBA4-4BB5-A1E5-3F3E36B20DA9
Offset
0x678
Width
2 byte(s)
Range
0 to 65535 step 0

Default store records

Store IDStore labelValueOption label
0Standard207

Visibility / conditions

  • {"condition_id": 1781, "type": "SuppressIf", "offset": 521938, "expr": ["EqIdVal QuestionId: 0x1039, Value: 0x0"]}

Record 4514

FastSpeed SDA Hold

Firmware Value

Default: 30 [DEC] Minimum: 1 [DEC] Maximum: 65535 [DEC]

Firmware help text

Default: 30 [DEC] Minimum: 1 [DEC] Maximum: 65535 [DEC]

Opcode
Numeric
Question ID
0x1091
VarStore
Setup
VarStore GUID
EC87D643-EBA4-4BB5-A1E5-3F3E36B20DA9
Offset
0x67a
Width
2 byte(s)
Range
0 to 65535 step 0

Default store records

Store IDStore labelValueOption label
0Standard30

Visibility / conditions

  • {"condition_id": 1781, "type": "SuppressIf", "offset": 521938, "expr": ["EqIdVal QuestionId: 0x1039, Value: 0x0"]}

Record 4515

FastSpeedPlus SCL High

Firmware Value

Default: 43 [DEC] Minimum: 1 [DEC] Maximum: 65535 [DEC]

Firmware help text

Default: 43 [DEC] Minimum: 1 [DEC] Maximum: 65535 [DEC]

Opcode
Numeric
Question ID
0x1092
VarStore
Setup
VarStore GUID
EC87D643-EBA4-4BB5-A1E5-3F3E36B20DA9
Offset
0x67c
Width
2 byte(s)
Range
0 to 65535 step 0

Default store records

Store IDStore labelValueOption label
0Standard43

Visibility / conditions

  • {"condition_id": 1781, "type": "SuppressIf", "offset": 521938, "expr": ["EqIdVal QuestionId: 0x1039, Value: 0x0"]}

Record 4516

FastSpeedPlus SCL Low

Firmware Value

Default: 76 [DEC] Minimum: 1 [DEC] Maximum: 65535 [DEC]

Firmware help text

Default: 76 [DEC] Minimum: 1 [DEC] Maximum: 65535 [DEC]

Opcode
Numeric
Question ID
0x1093
VarStore
Setup
VarStore GUID
EC87D643-EBA4-4BB5-A1E5-3F3E36B20DA9
Offset
0x67e
Width
2 byte(s)
Range
0 to 65535 step 0

Default store records

Store IDStore labelValueOption label
0Standard76

Visibility / conditions

  • {"condition_id": 1781, "type": "SuppressIf", "offset": 521938, "expr": ["EqIdVal QuestionId: 0x1039, Value: 0x0"]}

Record 4517

FastSpeedPlus SDA Hold

Firmware Value

Default: 30 [DEC] Minimum: 1 [DEC] Maximum: 65535 [DEC]

Firmware help text

Default: 30 [DEC] Minimum: 1 [DEC] Maximum: 65535 [DEC]

Opcode
Numeric
Question ID
0x1094
VarStore
Setup
VarStore GUID
EC87D643-EBA4-4BB5-A1E5-3F3E36B20DA9
Offset
0x680
Width
2 byte(s)
Range
0 to 65535 step 0

Default store records

Store IDStore labelValueOption label
0Standard30

Visibility / conditions

  • {"condition_id": 1781, "type": "SuppressIf", "offset": 521938, "expr": ["EqIdVal QuestionId: 0x1039, Value: 0x0"]}

Record 4518

HighSpeed SCL High

Firmware Value

Default: 11 [DEC] Minimum: 1 [DEC] Maximum: 65535 [DEC]

Firmware help text

Default: 11 [DEC] Minimum: 1 [DEC] Maximum: 65535 [DEC]

Opcode
Numeric
Question ID
0x1095
VarStore
Setup
VarStore GUID
EC87D643-EBA4-4BB5-A1E5-3F3E36B20DA9
Offset
0x682
Width
2 byte(s)
Range
0 to 65535 step 0

Default store records

Store IDStore labelValueOption label
0Standard11

Visibility / conditions

  • {"condition_id": 1781, "type": "SuppressIf", "offset": 521938, "expr": ["EqIdVal QuestionId: 0x1039, Value: 0x0"]}

Record 4519

HighSpeed SCL Low

Firmware Value

Default: 22 [DEC] Minimum: 1 [DEC] Maximum: 65535 [DEC]

Firmware help text

Default: 22 [DEC] Minimum: 1 [DEC] Maximum: 65535 [DEC]

Opcode
Numeric
Question ID
0x1096
VarStore
Setup
VarStore GUID
EC87D643-EBA4-4BB5-A1E5-3F3E36B20DA9
Offset
0x684
Width
2 byte(s)
Range
0 to 65535 step 0

Default store records

Store IDStore labelValueOption label
0Standard22

Visibility / conditions

  • {"condition_id": 1781, "type": "SuppressIf", "offset": 521938, "expr": ["EqIdVal QuestionId: 0x1039, Value: 0x0"]}

Record 4520

HighSpeed SDA Hold

Firmware Value

Default: 8 [DEC] Minimum: 1 [DEC] Maximum: 65535 [DEC]

Firmware help text

Default: 8 [DEC] Minimum: 1 [DEC] Maximum: 65535 [DEC]

Opcode
Numeric
Question ID
0x1097
VarStore
Setup
VarStore GUID
EC87D643-EBA4-4BB5-A1E5-3F3E36B20DA9
Offset
0x686
Width
2 byte(s)
Range
0 to 65535 step 0

Default store records

Store IDStore labelValueOption label
0Standard5

Visibility / conditions

  • {"condition_id": 1781, "type": "SuppressIf", "offset": 521938, "expr": ["EqIdVal QuestionId: 0x1039, Value: 0x0"]}

Record 4521

D0->D3 idle timeout (screen off)

Firmware Value

Default: 200 [DEC] Minimum: 1 [DEC] Maximum: 10000 [DEC]

Firmware help text

Default: 200 [DEC] Minimum: 1 [DEC] Maximum: 10000 [DEC]

Opcode
Numeric
Question ID
0x1098
VarStore
Setup
VarStore GUID
EC87D643-EBA4-4BB5-A1E5-3F3E36B20DA9
Offset
0x69c
Width
2 byte(s)
Range
1 to 10000 step 0

Default store records

Store IDStore labelValueOption label
0Standard200

Visibility / conditions

  • {"condition_id": 1781, "type": "SuppressIf", "offset": 521938, "expr": ["EqIdVal QuestionId: 0x1039, Value: 0x0"]}

Record 4522

D0->D3 idle timeout (screen on)

Firmware Value

Default: 2000 [DEC] Minimum: 1 [DEC] Maximum: 10000 [DEC]

Firmware help text

Default: 2000 [DEC] Minimum: 1 [DEC] Maximum: 10000 [DEC]

Opcode
Numeric
Question ID
0x1099
VarStore
Setup
VarStore GUID
EC87D643-EBA4-4BB5-A1E5-3F3E36B20DA9
Offset
0x69e
Width
2 byte(s)
Range
1 to 10000 step 0

Default store records

Store IDStore labelValueOption label
0Standard2000

Visibility / conditions

  • {"condition_id": 1781, "type": "SuppressIf", "offset": 521938, "expr": ["EqIdVal QuestionId: 0x1039, Value: 0x0"]}