Fujitsu D3320 PRIMERGY BX2560 M2, Reference Manual

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BX2560 M2
D3320 - BIOS Setup Utility 19
Advanced menu
4.3 PCI Subsystem Settings
The following parameters can be set in this menu. Some of them are only
available under special preconditions.
4.3.1 PCI Express Settings
ASPM Support
Active State Power Management (ASPM) is used to power-manage the
PCI Express links, thus consuming less power. Even if ASPM is
generally enabled by this selection, it will only be enabled for a specific
link if the appropriate PCI Express expansion card or onboard controller
supports it also.
Disabled
ASPM is disabled. Power consumption for PCI Express links is
not reduced. Best compatibility.
L1 only
Low power mode of the PCI Express links is set to L1. Tradeoff
between compatibility and energy saving.
I
The latency for PCI Express devices may increase if ASPM is not
disabled. Several expansion cards do not support this feature
correctly, which may lead to an undefined system behavior.
PCIe Hot Plug
Specifies if the Hot Plug support of the PCIe slot is activated.
Disabled
Hot Plug support of the PCIe slot is disabled.
Enabled
Hot Plug support of the PCIe slot is enabled.
Above 4G Decoding
Specifies if memory resources above the 4 GB address boundary can be
assigned to PCI devices. The selection depends on the operating system
and the populated adapter cards.