IEI Integration ROCKY-3786 v4.0 - Manual (Page 109)

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ROCKY-3786EV CPU Card
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Disabled Integrated USB controller disabled.
Enabled (Default) Integrated USB controller enabled.
USB(CN6) Keyboard Support [Enabled]
Use the USB Keyboard Support option to enable or disable the use of a USB keyboard.
Disabled USB keyboard cannot be used.
Enabled (Default) USB keyboard can be used.
Init Display First [PCI Slot]
Use the Init Display First option to select the primary display device.
PCI Slot (Default) The display connected to the PCI slot is the primary
display.
Onboard/AGP The AGP display is the primary display.
AC97 Audio [Auto]
Use the AC97 Audio option to enable or disable the onboard codec.
Auto
The onboard codec is automatically detected.
Disabled
(Default) The onboard codec is disabled.
IDE HDD Block Mode [Enabled]
If the drive connected to the system supports block mode, use the IDE HDD Block Mode
option to enable the system to detect the optimal number of block read/writes per sector
the system IDE drive can support. Block mode is also called block transfer, multiple
commands, or multiple sector read/write.
Disabled
Block mode is not supported.