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BIOS Setup Information
DRAM Integrity Mode
There are three options in this feature: Non-Error Checking and Correction
hardware (Non-ECC), Error Check Only (EC-Only) and Error Checking and
Correction Hardware (ECC). The DRAM integrity mode will be implemented by
the parity algorithm when this option is set to
Non-ECC
.
DRAM Refresh Rate
This option specifies the refresh rate frequency for the installed system memory
SDRAM DIMMs.
Memory Hole
This option allows the end user to specify the location of a memory hole for
memory space requirements from ISA-bus cards.
8bit I/O Recovery Time
This option specifies the length of the delay (in Sysclks) inserted between
consecutive 8-bit I/O operations.
16bit I/O Recovery Time
This option specifies the length of the delay (in Sysclks) inserted between
consecutive 16-bit I/O operations.
USB Passive Release
When enabled, this allows PIIX4 to use Passive Release to obtain better USB
performance while transferring control information or data for USB transactions.
When disabled, PIIX4 will perform PCI functions for the USB without using
Passive Release.
PIIX4 Passive Release
Choose the
Enabled
option to help raise the available bandwidth of the PCI bus
for increasing PCI bus performance.