IBASE SI-18 - Manual (Page 26)

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System BIOS Cacheable
The setting of Enabled allows caching of the system BIOS ROM at F000h-FFFFFh,
resulting in better system performance. However, if any program writes to this
memory area, a system error may result.
PCI ROM Priority
In case of multiple Option ROMs (Legacy and EFI Compatible), specifies what PCI
Option ROM to launch.
PCI Latency Timer
Value to be programmed into PCI Latency Timer Register.
VGA Palette Snoop
Enables or Disables VGA Palette Registers Snooping.
PERR# Generation
Enables or Disables PCI Device to Generate PERR#.
SERR# Generation
Enables or Disables PCI Device to Generate SERR#.
Relaxed Ordering
Enables or Disables PCI Express Device Relaxed Ordering.
Extended Tag
If ENABLED allows Device to use 8-bit Tag field as a requester.
No Snoop
Enables or Disables PCI Express Device No Snoop option.
Maximum Payload
Set Maximum Payload of PCI Express Device or allow System BIOS to select the
value.
Maximum Read Request
Launches (Enabled/Disabled) the boot option for legacy network devices.
PCI Express Link Settings
Set Maximum Read Request Size of PCI Express Device or allow System BIOS to
select the value.
ASPM Support
Set the ASPM Level:
Force L0 – Force all links to L0 State
AUTO
– BIOS auto configure
DISABLE
– Disables ASPM
Extended Synch
If ENABLED allows generation of Extended Synchronization patterns.