Acer Aspire X1430 Service Manual page 20

Miscellaneous
Parameter
AHCI Port1/2/3/4/5/6
Clock to All DIMM/PCI/PCIE
Spread Spectrum
Bootup Num-lock
USB Beep Message
12
Description
Displays the status of auto detection of the AHCI device.
Enables or disables the system to detect the DIMM/PCI/PCIE clock
automatically during bootup.
Enables or disables the reduction of the mainboard's EMI.
Note: Remember to disable the Spread Spectrum feature if you are
overclocking. A slight jitter can introduce a temporary boost in clock speed
causing the overclocked processor to lock up.
Selects power on state for Num Lock.
Enables or disables BIOS to display error beeps or messages during USB
device enumeration.
Option
Enabled
Disabled
Enabled
Disabled
On
Off
Enabled
Disabled
AX1430 Service Guide