Protech Systems BU-2509 User Manual page 103

Menu Path
The PCI Express Root Port 1 (PCI_E4) function allows users to enable/disable PCI
Express Root Port 1, select the PCIe port's speed, configure ASPM support and detect
the non-compliance device.
BIOS Setting
PCI Express Root Port 1
(PCI_E4)
PCIe Speed
ASPM Support
BU-2509 SERIES USER
Chipset > PCH-IO Configuration > PCI Express
Configuration > PCI Express Root Port 1 (PCI_E4)
PCI Express Root Port 1 Configuration Screen
Options
- Disabled
- Enabled
- Auto
- Gen1
- Gen2
- Gen3
- Disabled
- L0s
- L1
- L0sL1
- Auto

S MANUAL
Chapter 4 AMI BIOS Setup
Description/Purpose
Controls the PCI Express
Root Port 1.
Selects PCI Express port
speed.
Sets the ASPM (Active-State Power
Management) Level. The option
allows users to set the lower power
mode that activates when the bus is
not being used.
Force L0s – Force all links to L0s
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