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
Содержание Aspire X3990
Страница 1: ...Acer Aspire X3990 Service Guide PRINTED IN TAIWAN ...
Страница 12: ...4 Chapter 1 Block Diagram ...
Страница 65: ...57 Chapter 3 Install the I O Shielding 1 Install I O shielding into chassis ...
Страница 68: ...Chapter 3 60 4 Connect the ATX 24Pin Power cable and ATX 4Pin Power cable to main board ...
Страница 69: ...61 Chapter 3 Install the Optica Drive 1 Push the drive to the drive bay 2 Fix the screw to the bracket ...
Страница 70: ...Chapter 3 62 Install the Hard Disk Drive 1 Slide the HDD to the bracket 2 Fix the four screws to bracket ...
Страница 73: ...65 Chapter 3 Install the Front Bezel 1 Install the panel onto chassis and then check if it is Installed OK ...
Страница 74: ...Chapter 3 66 Install the VGA Card 1 Open the VGA card latch 2 Install the VGA card to PCIE x16 slot ...
Страница 75: ...67 Chapter 3 Install the TV Tuner Card 1 Press down the TV Tuner card 2 Fix the two screws ...
Страница 76: ...Chapter 3 68 Install the Side Panel 1 Install the side Panel then fix two Screws ...
Страница 84: ...Chapter 5 76 M B Placement Jumper and Connector Information Chapter 5 ...