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Acer Aspire X3990 - Page 24

Acer Aspire X3990
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Chapter 2 16
Miscellaneous
Parameter Description Option
AHCI Port1/2 Displays the status of auto detection of the AHCI device.
Clock to All DIMM/
PCI/PCIE
This item allows you to enable or disable the Clock to all DIMM/PCI/PCIE. Enabled
Disabled
Spread Spectrum If you enable spread spectrum, it can significantly reduce the EMI (Electro-
Magnetic Interference) generated by the system.
Enabled
Disabled
Bootup Num-lock Selects power on state for Num Lock. On
Off
USB Beep Message Enables or disables BIOS to display error beeps or messages during USB
device enumeration.
Enabled
Disabled

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