Advantech SOM-5883, User Manual

Page: 46 / 104

SOM-5883 User Manual 34

Intel(R) SpeedStep(tm)
Allows more than two frequency ranges to be supported.

Hyper-Threading
Enable or Disable Hyper-Threading Technology.

ACPI D3Cold Support
Enable/Disable ACPI D3Cold(RTD3) Support.

Low power SO Idle Capability
This variable determines if we enable ACPI lower power S0 idle capability
(Mutually exclusive with smart connect) While this is enabled, it also disable
8254 timer for SLP_S0 support.

SA GV
System agent geyserville. Can disable, fix to a specific point, or enable fre -
quency switching.

Page Close Idle Timeout
Page close idle timeout control.

Power Down Mode
CKE Power Down Mode Control.

RC6(Render standby)
Check to enable render standby support.

DMI Link ASPM Control
The control of Active State Power Management of the DMI Link.

PCI Express Clock Gating
PCI Express Clock Gating Enable/Disable for each root port.

Legacy IO Low Latency
Set to enable low latency of legacy IO. Some systems require lower IO latency
irrespective of power. This is a tradeoff between power and IO latency.

CPU PCI Express Configuration

PCH PCI Express Configuration