Pch-Io Configuration - VersaLogic Lion Bios Reference Manual

Above 4GB MMIO BIOS assignment
Option Default: 00
01 = Enabled
00 = Disabled
Option Help: Enable/Disable above 4GB MemoryMappedIO BIOS assignment

PCH-IO Configuration

PCI Express Configuration
Option Name: PCI Express Clock Gating
Option Default: 01
01 = Disabled
00 = Enabled
Option Help: PCI Express Clock Gating Enable/Disable for each root port.
Legacy IO Low Latency
Option Default: 00
00 = Disabled
01 = Enabled
Option Help: 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.
DMI Link ASPM Control
Option Default: 01
00 = Disabled
01 = Enabled
Option Help: The control of Active State Power Management of the DMI Link.
Auto is equal to POR setting.
Port8xh Decode
Option Default: 00
00 = Disabled
01 = Enabled
Option Help: PCI Express Port8xh Decode Enable/Disable.
EPMe-42 BIOS Reference Manual
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