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Chipset Setup,
Continued
ISA 16 Bit I/O Recovery
This option specifies the length of the delay that is added to the CPU
cycle between consecutive 16–bit I/O operations. The length of the
delay is related to the CPU type and frequency.
The settings are 1 Sysclock, 2 Sysclocks, 3 Sysclocks, 4 Sysclocks, or
Disabled. The Optimal and Fail–Safe default settings are Disabled.
Memory Hole
This option specifies the location of an area of memory that cannot be
addressed on the ISA bus. The settings are Disabled, 15 MB–16 MB, or
512KB–640KB. The Optimal and Fail–Safe default settings are Disabled.
Deturbo Frequency (MHz)
This option specifies the deturbo frequency in megahertz. The deturbo
frequency is a low speed used only for old software that cannot operate
at high speed. The settings are 6 MHz, 8 MHz, 12 MHz, or Disabled. The
Optimal and Fail–Safe default settings are Disabled.
USB Function
Set this option to Enabled to enable USB support. The settings are
Enabled or Disabled. The Optimal and Fail–Safe default settings are
Disabled.
USB Keyboard/Mouse Legacy Support
Set this option to Enabled to enable support for older keyboards and
mouse devices if the USB Function option is set to Enabled. The
settings are Enabled or Disabled. The Optimal and Fail–Safe default
settings are Disabled.
Chapter 2 WINBIOS Setup
57
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