Chipset Setup - American Megatrends Atlas III PCI User Manual

Chipset Setup

Memory Hole This option allows the end user to specify a memory hole. The settings are
Disabled, 512-640K, or 15-16M (from 15 MB to 16 MB). The Optimal and
Fail-Safe default settings are Disabled.
IRQ12/M Mouse Function This option should be set according to the mouse hardware
implementation. The Optimal and Fail-Safe default settings are Enabled. The
settings are:
Settings
Disabled
Enabled
DRAM Data Integrity Mode This option sets the system memory integrity mode. The settings
are Parity (system memory parity is checked) or ECC (an Error Checking and
Correction routine is used). The Optimal and Fail-Safe default settings are
Parity.
USB Function Set this option to Enabled to enable the system BIOS USB (Universal Serial
Bus) functions. The settings are Enabled or Disabled. The Optimal and Fail-
Safe default settings are Enabled.
USB Keyboard/Mouse Legacy Support Set this option to Enabled to enable USB support for
legacy keyboards and mice. The settings are Enabled or Disabled. The Optimal
and Fail-Safe default settings are Enabled.
48 Atlas PCI-III PCI Pentium ISA Motherboard User's Guide
Description
Choose this setting if the hardware uses IRQ12 for the PS/2
mouse.
Choose this setting if a keyboard controller mouse interrupt
is used for the mouse.