4-20
BIOS Setup Information
Advanced Chipset Setup Menu
This Setup is very important to maintain system stability. If you are not a technical person, do
not attempt to change any parameters. The optimal default setting is recommended.
USB Function
This option enables the on-chip Universal Serial Bus (USB) function to support the USB
peripheral devices when the
Enabled
setting is selected.
USB Keyboard Legacy Support
This option is only available when the USB Function option is set to
Enabled.
Enabling this
option provides support for a USB keyboard without the auxiliary driver in the DOS
environment.
DRAM Page Closing Policy
This option controls whether the graphics and memory controller hub will pre-charge one or all
banks after a page miss.
Memory Hole
This option allows the end user to specify the location of a memory hole for memory space
requirements from ISA-bus cards.
DRAM Tras/Trc Cycle Time (SCLKs)
This option controls the number of SDRAM clocks (SCLKs) used per access cycle.
Address Setup Time (SCLKs)
This option controls the SDRAM address Setup delay time.
CAS# Latency (SCLKs)
This option controls the number of SCLKs between the time a read command is sampled by the
SDRAMs and the time the GMCH samples transfer the data from the SDRAMs.
