PCIe Configuration#
General#
Above 4G Decoding#
Whether to enable 64bit capable devices to be decoded in Above 4G Address Space (only if system supports 64bit PCI decoding).
Possible options:
- Enabled - Default.
- Disabled
SR-IOV Support#
Whether to enable Single Root IO Virtualization Support.
Attention
Assumes system has SR-IOV capable PCIe Devices.
Possible options:
- Disabled - Default.
- Enabled
| WMI Setting name | Values | SVP or SMP Req'd | AMD/Intel |
|---|---|---|---|
| SRIOVSupport | Disable, Enable | Yes | AMD |
ASPM Support#
When set to Auto, configures ASPM automatically according to what each device supports.
Attention
Enabling ASPM may cause some PCIe devices to fail.
Possible options:
- Disabled - Default.
- Auto
| WMI Setting name | Values | SVP or SMP Req'd | AMD/Intel |
|---|---|---|---|
| ASPMSupport | Disabled, Auto | Yes | AMD |
Extended Synch#
Whether to allow generation of Extended Synchronization patterns.
Possible options:
- Disabled - Default.
- Enabled
Link Training Timeout (uS)#
How many microseconds software will wait before polling 'Link Training' bit in Link Status register.
Value range: 10 to 10000 μs.
Possible options:
- 1000 - Default.
- (a number between 10 and 10000)
Unpopulated Links#
When Disabled, unpopulated PCI Express links are disabled to save power.
Possible options:
- Keep Link ON
- Disabled - Default.
PCIe Slot{X} Status#
PCIe Port#
Whether to enable this PCIe port.
Possible options:
- Enabled - Default.
- Disabled
| WMI Setting name | Values | SVP or SMP Req'd | AMD/Intel |
|---|---|---|---|
| PCIeSlotXPort | Disable, Enable | Yes | AMD |
Attention
In the WMI class name, X represents the slot number, from 1 to 6.
PCIe Port Bifurcation#
Select PCIe port bifurcation.
If Auto, system will auto-configure PCIe port bifurcation and auto-detect Quad M.2 PCIe Card.
Possible options:
- Auto - Default.
- x4x4
- x4x4x4x4
- x4x4x8
- x8x4x4
- x8
- x8x8
- x16
| WMI Setting name | Values | SVP or SMP Req'd | AMD/Intel |
|---|---|---|---|
| PCIeSlotXBifurcation | Auto, x4x4x4x4, x8x8, x16 | Yes | AMD |
Attention
In the WMI class name, X represents the slot number, from 1 to 6.
Link Speed#
Possible options:
- Auto - Default.
- Auto, Gen 1 (2.5 GT/s)
- Gen 2 (5 GT/s)
- Gen 3 (8 GT/s)
- Gen 4 (16 GT/s)
| WMI Setting name | Values | SVP or SMP Req'd | AMD/Intel |
|---|---|---|---|
| PCIeSlotXLinkSpeed | Auto, Gen 1 (2.5 GT/s), Gen 2 (5 GT/s), Gen 3 (8 GT/s), Gen 4 (16 GT/s) | Yes | AMD |
Attention
In the WMI class name, X represents the slot number, from 1 to 6.
M.2 Slot{Y} Status#
M.2 Port#
Whether to enable this M.2 port.
Possible options:
- Enabled - Default.
- Disabled
| WMI Setting name | Values | SVP or SMP Req'd | AMD/Intel |
|---|---|---|---|
| M2SlotXPort | Disable, Enable | Yes | AMD |
Attention
In the WMI class name, X represents the slot number, 1 or 2.
M.2 Link Speed#
Possible options:
- Auto - Default.
- Auto, Gen 1 (2.5 GT/s)
- Gen 2 (5 GT/s)
- Gen 3 (8 GT/s)
- Gen 4 (16 GT/s)
| WMI Setting name | Values | SVP or SMP Req'd | AMD/Intel |
|---|---|---|---|
| M2SlotXLinkSpeed | Auto, Gen 1 (2.5 GT/s), Gen 2 (5 GT/s), Gen 3 (8 GT/s), Gen 4 (16 GT/s) | Yes | AMD |
Attention
In the WMI class name, X represents the slot number, 1 or 2.
M.2 DLF Support#
Possible options:
- Enabled - Default.
- Disabled