Abit AB-BE6 Manual page 47

Introduction of the BIOS 3-19
Passive Release:
Two options are available: Enabled and Disabled. Set the option to enabled or disabled
passive release for the Intel PIIX4 chip (Intel PCI to ISA bridge). This function is used to
meet the latency of the ISA bus master, if you have an ISA card compatibility problem, you
can try to enable or disable this option for optimal result.
Delayed Transaction:
Two options are available: Enabled and Disabled. Set the option to enabled or disabled
delayed transaction for the Intel PIIX4 chip. This function is used to meet the latency of PCI
cycles to or from the ISA bus. This option must be enabled to provide PCI 2.1 compliance. If
you have an ISA card compatibility problem, you can try to enable or disable this option for
optimal results.
AGP Aperture Size (MB):
Seven options are available: 4 ( 8 ( 16 ( 32 ( 64 ( 128 ( 256 ( Back to 4. This
option specifies the amount of system memory that can be used by the AGP device. The
aperture is a portion of the PCI memory address range dedicated for graphics memory
address space.
Spread Spectrum:
Three options are available: Disable(0.25%(0.5%. For EMC (Electro-Magnetic
Compatibility Test) testing you may need to adjust these options for optimal results, we do
not recommend you change the default, except for special reasons. Some values you select
may cause system instability under some situations, please be careful.
Temperature Warning:
This item lets you select the temperature that you want the system to send out to the PC
speakers a warning message of when the temperature goes beyond either limit. You can
select the temperatures you want, they are any from 30°C / 86°F to 120°C / 248°F. It lets you
increase by one step increments, 1°C / 1.8°F.
User's Manual