User Manual

ASUS P9A-I Series
4-19
PCI Express Settings
Allows you to change the settings of the PCI Express Devices.
Aptio Setup Utility - Copyright (C) 2013 American Megatrends, Inc.
Advanced
Enables or Disables PCI
Express Device Relaxed
Ordering.
PCI Express Device Register Settings
Relaxed Ordering [Disabled]
Extended Tag [Disabled]
No Snoop [Enabled]
Maximum Payload [Auto]
Maximum Read Request [Auto]
PCI Express Link Register Settings
ASPM Support [Disabled]
WARNING: Enabling ASPM may cause some
PCI-E devices to fail
Extended Synch [Disabled]
Link Training Retry [5]
Link Training Timeout (uS) 1000
Unpopulated Links [Keep Link ON]
Restore PCIE Registers [Disabled]
Relaxed Ordering [Disabled]
Enables or disables PCIe device relaxed ordering. Conguration options: [Disabled] [Enabled]
Extended Tag [Disabled]
Enables or disables Extended Tag. If enabled, allows the device to use an 8-bit tag eld as a
requester. Conguration options: [Disabled] [Enabled]
No Snoop [Enabled]
Enables or disables the PCIe device No Snoop option. Conguration options: [Disabled]
[Enabled]
Maximum Payload [Auto]
Selects the maximum payload size of a PCI Express device or set to [Auto] to allow the BIOS
to automatically set the value. Conguration options: [Auto] [128 Bytes] [256 Bytes] [512
Bytes] [1024 Bytes] [2048 Bytes] [4096 Bytes]
Maximum Read Request [Auto]
Selects the maximum read request size of a PCI Express device or set to [Auto] to allow the
BIOS to automatically set the value. Conguration options: [Auto] [128 Bytes] [256 Bytes] [512
Bytes] [1024 Bytes] [2048 Bytes] [4096 Bytes]
ASPM Support [Disabled]
This item allows you to enable or disable support to Active State Power Management (ASPM).
ASPM is a power management protocol that is used to extend battey life. Conguration
options:
[Disabled] Disables ASPM.
[Auto] BIOS auto conguration.
Extended Synch [Disabled]
Enable this item to allow generation of extended synchronization patterns. Conguration
options: [Disabled] [Enabled]