Diagnostics tools 77
Field Description Options
Enable Multimedia Timer Select whether to enable or disable the High Precision Event
Timer (HPET). When enabled, multimedia streams are better
synchronized providing smoother playback.
Note: This option must be enabled to allow Windows Vista
installation.
Enabled
Disabled
Enable ASPM Select whether to enable or disable Active State Power
Management (ASPM) in a Windows Vista environment. When
enabled, Vista allows PCIe devices to function in a manner that
will maximize power efficiency.
Note: This option must be set to Disabled when a PCIe expansion
card is installed to avoid system hang-ups.
Enabled
Disabled
Intel VT for Directed I/O (VT-d) submenu
In a virtual setup, multiple operating systems and applications in independent partitions can run on a
single server. When enabled, VT-d improves I/O performance and provides increased security
through device isolation using hardware assisted remapping.
NOTES:
•
Enable the Intel Virtualization Technology option in the Advanced | Advanced Processor Options submenu
before enabling the VT-d function.
• After enabling VT-d in BIOS Setup, you need to enable it on your operating system as well. Consult your
OS documentation for related instructions.
