HP Z238 Maintenance And Service Manual page 28

Table 2-3 Computer Setup—Advanced (for advanced users) (continued)
Built-In Device Options
Port Options
20 Chapter 2 System management
Virtualization Technology for Directed I/O (VTd) (Intel only)
Controls virtualization DMA remapping features of the chipset. Changing this setting requires turning the
computer off and then back on. Default is disabled.
PCI Express Slot x (enable/disable)
Lets you disable individual expansion slots.
Allow PCIe/PCI SERR# Interrupt (enable/disable)
Allows PCI devices to report PCI/PCIe System Error signals, such as address parity errors, data parity
errors, and critical errors other than parity. Default is enabled.
Power Button Override (disable/4 sec/15 sec)
Lets you disable or enable and select the number of seconds you have to hold down the power button for
it to force the system to power off. Default is '4 sec'.
Embedded LAN Controller
Select to show the device in the operating system. Default is enabled.
Wake On LAN
Lets you either disable the Wake On LAN feature, or configure where the computer boots, including the
network or hard drive. Default is Boot to Network.
Dust Filter (select models only)
Select to enable the Dust Filter replacement reminder, which can be set for 15, 30, 60, 90, 120, or 180
days. The reminder will show during POST after the reminder timer has expired.
Video Memory Size
Use this option to manage graphics memory allocation. The value you choose is allocated permanently to
graphics and is unavailable to the operating system.
If a discrete graphics card is installed when Intel graphics is also available, then Integrated Video displays
instead of Video Memory Size. Select Integrated Video to enable simultaneous usage of integrated Intel
HD graphics and discrete graphics cards to drive more than three displays.
Audio Device
Select to show the device in the operating system. Default is enabled.
Internal Speakers (does not affect external speakers)
Clear to disable the chassis speaker. This function is applicable to normal audio playback in the operating
system and does not affect the error or warning beeps during POST. Default is enabled.
Integrated Microphone
Clear to disable the integrated microphone. This does not affect devices plugged into audio jacks. Default
is enabled.
Increase Idle Fan Speed(%)
Sets idle fan speed percentage. This setting only changes the minimum fan speed. The fan is still
automatically controlled.
Allows you to hide the following ports from the operating system:
● I/O address A
Interrupt A
●
● SATA0
● SATA1
● SATA2