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

Onboard Devices

HD Audio Advanced Configuration

HD Audio Advanced Configuration firmware setup page decoded from AMI HII/IFR resources.

Form ID
0x27b5
Records
19
Path
Setup / Chipset / PCH-IO Configuration / HD Audio Configuration / HD Audio Advanced Configuration

Record 4317

iDisplay Audio Disconnect

Firmware Value

Disconnects SDI2 signal to hide/disable iDisplay Audio Codec.

Opcode
OneOf
Question ID
0xfcc
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x592
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 4318

Codec Sx Wake Capability

Firmware Value

Capability to detect wake initiated by a codec in Sx (eg by modem codec)

Opcode
OneOf
Question ID
0xfcd
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x5a6
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 4319

PME Enable

Firmware Value

Enables PME wake of HD Audio controller during POST.

Opcode
OneOf
Question ID
0xfce
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x593
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 4320

HD Audio Link Frequency

Firmware Value

Selects HD Audio Link frequency.

Firmware help text

Selects HD Audio Link frequency. Applicable only if HDA codec supports selected frequency.

Opcode
OneOf
Question ID
0xfcf
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x5a3
Width
1 byte(s)
Range
0 to 2 step 0
ValueLabelMarkers
06 MHz
112 MHz
224 MHzStandard default

Record 4321

iDisplay Audio Link Frequency

Firmware Value

Selects iDisplay Link frequency.

Opcode
OneOf
Question ID
0xfd0
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x5a4
Width
1 byte(s)
Range
3 to 4 step 0
ValueLabelMarkers
348 MHz
496 MHzStandard default

Record 4322

iDisplay Audio Link T-Mode

Firmware Value

Indicates whether SDI is operating in 1T, 2T (CNL) or 2T, 4T, 8T mode (ICL).

Opcode
OneOf
Question ID
0xfd1
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x5a5
Width
1 byte(s)
Range
0 to 4 step 0
ValueLabelMarkers
11T Mode
02T Mode
24T Mode
38T ModeStandard defaultManufacturing default
416T Mode

Record 4323

Autonomous Clock Stop SNDW #0

Firmware Value

Enable/Disable Autonomous Clock Stop for SoundWire LINK0

Opcode
OneOf
Question ID
0xfd2
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x5a7
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 4324

Autonomous Clock Stop SNDW #1

Firmware Value

Enable/Disable Autonomous Clock Stop for SoundWire LINK1

Opcode
OneOf
Question ID
0xfd3
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x5a8
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 4325

Autonomous Clock Stop SNDW #2

Firmware Value

Enable/Disable Autonomous Clock Stop for SoundWire LINK2

Opcode
OneOf
Question ID
0xfd4
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x5a9
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 4326

Autonomous Clock Stop SNDW #3

Firmware Value

Enable/Disable Autonomous Clock Stop for SoundWire LINK3

Opcode
OneOf
Question ID
0xfd5
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x5aa
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled

Record 4327

Data On Active Interval Select SNDW #0

Firmware Value

Data On Active Interval Select: 1) 6 clock periods 2) 7 clock periods 3) 8 clock periods 4) 11 clock periods 5)

Firmware help text

Data On Active Interval Select: 1) 6 clock periods 2) 7 clock periods 3) 8 clock periods 4) 11 clock periods 5)

Opcode
OneOf
Question ID
0xfd6
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x5ab
Width
1 byte(s)
Range
0 to 3 step 0
ValueLabelMarkers
06 clock periods
17 clock periods
28 clock periods
311 clock periodsStandard defaultManufacturing default

Record 4328

Data On Active Interval Select SNDW #1

Firmware Value

Data On Active Interval Select: 1) 6 clock periods 2) 7 clock periods 3) 8 clock periods 4) 11 clock periods 5)

Firmware help text

Data On Active Interval Select: 1) 6 clock periods 2) 7 clock periods 3) 8 clock periods 4) 11 clock periods 5)

Opcode
OneOf
Question ID
0xfd7
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x5ac
Width
1 byte(s)
Range
0 to 3 step 0
ValueLabelMarkers
06 clock periods
17 clock periods
28 clock periods
311 clock periodsStandard defaultManufacturing default

Record 4329

Data On Active Interval Select SNDW #2

Firmware Value

Data On Active Interval Select: 1) 6 clock periods 2) 7 clock periods 3) 8 clock periods 4) 11 clock periods 5)

Firmware help text

Data On Active Interval Select: 1) 6 clock periods 2) 7 clock periods 3) 8 clock periods 4) 11 clock periods 5)

Opcode
OneOf
Question ID
0xfd8
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x5ad
Width
1 byte(s)
Range
0 to 3 step 0
ValueLabelMarkers
06 clock periods
17 clock periods
28 clock periods
311 clock periodsStandard defaultManufacturing default

Record 4330

Data On Active Interval Select SNDW #3

Firmware Value

Data On Active Interval Select: 1) 6 clock periods 2) 7 clock periods 3) 8 clock periods 4) 11 clock periods 5)

Firmware help text

Data On Active Interval Select: 1) 6 clock periods 2) 7 clock periods 3) 8 clock periods 4) 11 clock periods 5)

Opcode
OneOf
Question ID
0xfd9
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x5ae
Width
1 byte(s)
Range
0 to 3 step 0
ValueLabelMarkers
06 clock periods
17 clock periods
28 clock periods
311 clock periodsStandard defaultManufacturing default

Record 4331

Data On Delay Select SNDW #0

Firmware Value

Data On Delay Select: 1) 2 clock periods 2) 3 clock periods 3)

Firmware help text

Data On Delay Select: 1) 2 clock periods 2) 3 clock periods 3)

Opcode
OneOf
Question ID
0xfda
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x5af
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
02 clock periods
13 clock periodsStandard defaultManufacturing default

Record 4332

Data On Delay Select SNDW #1

Firmware Value

Data On Delay Select: 1) 2 clock periods 2) 3 clock periods 3)

Firmware help text

Data On Delay Select: 1) 2 clock periods 2) 3 clock periods 3)

Opcode
OneOf
Question ID
0xfdb
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x5b0
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
02 clock periods
13 clock periodsStandard defaultManufacturing default

Record 4333

Data On Delay Select SNDW #2

Firmware Value

Data On Delay Select: 1) 2 clock periods 2) 3 clock periods 3)

Firmware help text

Data On Delay Select: 1) 2 clock periods 2) 3 clock periods 3)

Opcode
OneOf
Question ID
0xfdc
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x5b1
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
02 clock periods
13 clock periodsStandard defaultManufacturing default

Record 4334

Data On Delay Select SNDW #3

Firmware Value

Data On Delay Select: 1) 2 clock periods 2) 3 clock periods 3)

Firmware help text

Data On Delay Select: 1) 2 clock periods 2) 3 clock periods 3)

Opcode
OneOf
Question ID
0xfdd
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x5b2
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
02 clock periods
13 clock periodsStandard defaultManufacturing default

Record 4335

ACX SSID 305610EC Codecs Topology

Firmware Value

Codecs: ALC711-VD1, ALC714-VC1, 2x ALC316

Opcode
OneOf
Question ID
0xfde
VarStore
PchSetup
VarStore GUID
4570B7F1-ADE8-4943-8DC3-406472842384
Offset
0x7ff
Width
1 byte(s)
Range
0 to 1 step 0
ValueLabelMarkers
0DisabledStandard defaultManufacturing default
1Enabled