HP Z4 Maintenance and Service Guide - Page 49
Computer Setup F10 Utilities
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Table 5-3 Computer Setup-Advanced (for advanced users) (continued) Option Heading 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'. Built-In Device Options 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. Missing Dust Filter Select to display a message when a dust filter is not installed. 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 or speakers. 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. Increase PCIe Idle Fan Speed(%) Sets idle fan speed percentage. This setting only changes the minimum fan speed. The fan is still automatically controlled. Port Options Allows you to hide the following ports from the operating system: ● Serial port A ● Serial port B ● SATA0 thru SATA7 ● eSATA0 ● eSATA1 ● Internal USB ports ● Front USB ports ● Rear USB ports ● USB Type-C Controller(s) firmware version ● Media card reader Option ROM Launch Policy These policies control whether Legacy Option ROMs or UEFI drivers are loaded. Default is 'All UEFI.' Configure Option ROM Launch Policy Computer Setup (F10) Utilities 41