Leo-Patch 1.6 · Q1HY MoDT · Observations 14 October 2026
System Dark Light
Overview / Manual / PCI Express Root Port 11
PCIe and Graphics
PCI Express Root Port 11
PCI Express Root Port 11 firmware setup page decoded from AMI HII/IFR resources.
Form ID 0x13ee
Records 34
Path Setup / Chipset / PCH-IO Configuration / PCI Express Configuration / PCI Express Root Port 11
Record 3616
PCI Express Root Port 11 Firmware Value
Control the PCI Express Root Port.
Opcode OneOf
Question ID 0xd45
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x109
Width 1 byte(s)
Range 0 to 1 step 0 Permalink
Record 3617
Connection Type Firmware Value
Built-In: a built-in device is connected to this rootport.
Firmware help text Built-In: a built-in device is connected to this rootport. SlotImplemented bit will be clear. Slot: this rootport connects to user-accessible slot. SlotImplemented bit will be set.
Opcode OneOf
Question ID 0xd46
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x371
Width 1 byte(s)
Range 0 to 1 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} {"condition_id": 1568, "type": "GrayOutIf", "offset": 488081, "expr": ["EqIdVal QuestionId: 0xD53, Value: 0x1"]} Permalink
Set the ASPM Level: Force L0s - Force all links to L0s State AUTO - BIOS auto configure DISABLE - Disables ASPM
Firmware help text Set the ASPM Level:
Force L0s - Force all links to L0s State
AUTO - BIOS auto configure
DISABLE - Disables ASPM
Opcode OneOf
Question ID 0x15ea
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x125
Width 1 byte(s)
Range 0 to 4 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink
PCI Express L1 Substates settings.
Opcode OneOf
Question ID 0x1606
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x2c9
Width 1 byte(s)
Range 0 to 2 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink
PCI Express L1 Low Substate Enable/Disable.
Opcode OneOf
Question ID 0xd47
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x2e5
Width 1 byte(s)
Range 0 to 1 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink
Enable/Disable Access Control Services Extended Capability
Opcode OneOf
Question ID 0xd48
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x301
Width 1 byte(s)
Range 0 to 1 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink
Enable/Disable Precision Time Measurement
Opcode OneOf
Question ID 0x1622
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x31d
Width 1 byte(s)
Range 0 to 1 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink
Enable/Disable Downstream Port Containment
Opcode OneOf
Question ID 0xd49
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x339
Width 1 byte(s)
Range 0 to 1 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink
Enable/Disable Rootport extensions for Downstream Port Containment
Opcode OneOf
Question ID 0xd4a
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x355
Width 1 byte(s)
Range 0 to 1 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink
PCI Express Unsupported Request Reporting Enable/Disable.
Opcode OneOf
Question ID 0xd4b
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x141
Width 1 byte(s)
Range 0 to 1 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink
PCI Express Device Fatal Error Reporting Enable/Disable.
Opcode OneOf
Question ID 0xd4c
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x15d
Width 1 byte(s)
Range 0 to 1 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink
PCI Express Device Non-Fatal Error Reporting Enable/Disable.
Opcode OneOf
Question ID 0xd4d
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x179
Width 1 byte(s)
Range 0 to 1 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink
PCI Express Device Correctable Error Reporting Enable/Disable.
Opcode OneOf
Question ID 0xd4e
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x195
Width 1 byte(s)
Range 0 to 1 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink
Root PCI Express System Error on Fatal Error Enable/Disable.
Opcode OneOf
Question ID 0xd4f
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x1e9
Width 1 byte(s)
Range 0 to 1 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink
Root PCI Express System Error on Non-Fatal Error Enable/Disable.
Opcode OneOf
Question ID 0xd50
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x205
Width 1 byte(s)
Range 0 to 1 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink
Root PCI Express System Error on Correctable Error Enable/Disable.
Opcode OneOf
Question ID 0xd51
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x221
Width 1 byte(s)
Range 0 to 1 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink
PCI Express PME SCI Enable/Disable.
Opcode OneOf
Question ID 0xd52
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x23d
Width 1 byte(s)
Range 0 to 1 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink
PCI Express Hot Plug Enable/Disable.
Opcode OneOf
Question ID 0xd53
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x259
Width 1 byte(s)
Range 0 to 1 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} {"condition_id": 1569, "type": "GrayOutIf", "offset": 488633, "expr": ["EqIdVal QuestionId: 0xD46, Value: 0x0"]} Permalink
Record 3634
Advanced Error Reporting Firmware Value
Advanced Error Reporting Enable/Disable.
Opcode OneOf
Question ID 0xd54
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x275
Width 1 byte(s)
Range 0 to 1 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink
Configure PCIe Speed
Opcode OneOf
Question ID 0xd55
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x291
Width 1 byte(s)
Range 0 to 3 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink
Record 3636
Transmitter Half Swing Firmware Value
Transmitter Half Swing Enable/Disable.
Opcode OneOf
Question ID 0xd56
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x2ad
Width 1 byte(s)
Range 0 to 1 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink
Record 3637
Detect Timeout Firmware Value
The number of milliseconds reference code will wait for link to exit Detect state for enabled ports before assuming there is no device and potentially disabling the port.
Opcode Numeric
Question ID 0xd57
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x397
Width 2 byte(s)
Range 0 to 65535 step 1 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink
Record 3638
Extra Bus Reserved Firmware Value
Extra Bus Reserved (0-7) for bridges behind this Root Bridge.
Opcode Numeric
Question ID 0xd58
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x529
Width 1 byte(s)
Range 0 to 7 step 1 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink
Record 3639
Reserved Memory Firmware Value
Reserved Memory for this Root Bridge (1-20) MB
Opcode Numeric
Question ID 0xd59
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x54f
Width 2 byte(s)
Range 1 to 20 step 1 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink
Reserved I/O (4K/8K/12K/16K/20K) Range for this Root Bridge.
Opcode Numeric
Question ID 0xd5a
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x57d
Width 1 byte(s)
Range 4 to 20 step 4 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink
PCH PCIE Latency Reporting Enable/Disable
Opcode OneOf
Question ID 0xd5b
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x3ed
Width 1 byte(s)
Range 0 to 1 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink
Record 3642
Snoop Latency Override Firmware Value
Snoop Latency Override for PCH PCIE.
Firmware help text Snoop Latency Override for PCH PCIE.
Disabled: Disable override.
Manual: Manually enter override values.
Auto (default): Maintain default BIOS flow.
Opcode OneOf
Question ID 0xd5c
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x425
Width 1 byte(s)
Range 0 to 2 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} {"condition_id": 1570, "type": "SuppressIf", "offset": 488948, "expr": ["EqIdVal QuestionId: 0xD5B, Value: 0x0"]} Permalink
Record 3643
Snoop Latency Value Firmware Value
LTR Snoop Latency value of PCH PCIE
Opcode Numeric
Question ID 0xd5d
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x49f
Width 2 byte(s)
Range 0 to 1023 step 1 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} {"condition_id": 1570, "type": "SuppressIf", "offset": 488948, "expr": ["EqIdVal QuestionId: 0xD5B, Value: 0x0"]} {"condition_id": 1571, "type": "SuppressIf", "offset": 488996, "expr": ["EqIdVal QuestionId: 0xD5C, Value: 0x1", "Not"]} Permalink
Record 3644
Snoop Latency Multiplier Firmware Value
LTR Snoop Latency Multiplier of PCH PCIE
Opcode OneOf
Question ID 0xd5e
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x441
Width 1 byte(s)
Range 0 to 5 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} {"condition_id": 1570, "type": "SuppressIf", "offset": 488948, "expr": ["EqIdVal QuestionId: 0xD5B, Value: 0x0"]} {"condition_id": 1571, "type": "SuppressIf", "offset": 488996, "expr": ["EqIdVal QuestionId: 0xD5C, Value: 0x1", "Not"]} Permalink
Record 3645
Non Snoop Latency Override Firmware Value
Non Snoop Latency Override for PCH PCIE.
Firmware help text Non Snoop Latency Override for PCH PCIE.
Disabled: Disable override.
Manual: Manually enter override values.
Auto (default): Maintain default BIOS flow.
Opcode OneOf
Question ID 0xd5f
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x45d
Width 1 byte(s)
Range 0 to 2 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} {"condition_id": 1570, "type": "SuppressIf", "offset": 488948, "expr": ["EqIdVal QuestionId: 0xD5B, Value: 0x0"]} Permalink
Record 3646
Non Snoop Latency Value Firmware Value
LTR Non Snoop Latency value of PCH PCIE
Opcode Numeric
Question ID 0xd60
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x4d7
Width 2 byte(s)
Range 0 to 1023 step 1 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} {"condition_id": 1570, "type": "SuppressIf", "offset": 488948, "expr": ["EqIdVal QuestionId: 0xD5B, Value: 0x0"]} {"condition_id": 1572, "type": "SuppressIf", "offset": 489140, "expr": ["EqIdVal QuestionId: 0xD5F, Value: 0x1", "Not"]} Permalink
Record 3647
Non Snoop Latency Multiplier Firmware Value
LTR Non Snoop Latency Multiplier of PCH PCIE
Opcode OneOf
Question ID 0xd61
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x479
Width 1 byte(s)
Range 0 to 5 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} {"condition_id": 1570, "type": "SuppressIf", "offset": 488948, "expr": ["EqIdVal QuestionId: 0xD5B, Value: 0x0"]} {"condition_id": 1572, "type": "SuppressIf", "offset": 489140, "expr": ["EqIdVal QuestionId: 0xD5F, Value: 0x1", "Not"]} Permalink
PCIE LTR Configuration Lock
Opcode OneOf
Question ID 0xd62
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0x409
Width 1 byte(s)
Range 0 to 1 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink
Record 3649
Peer Memory Write Enable Firmware Value
Peer Memory Write Enable/Disable
Opcode OneOf
Question ID 0xd63
VarStore PchSetup
VarStore GUID 4570B7F1-ADE8-4943-8DC3-406472842384
Offset 0xc8
Width 1 byte(s)
Range 0 to 1 step 0 Visibility / conditions {"condition_id": 1567, "type": "SuppressIf", "offset": 488073, "expr": ["EqIdVal QuestionId: 0xD45, Value: 0x0"]} Permalink