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Peripheral Setup,
Continued
PCI IDE Present on Slot 1
If this option is set to Enabled, PCI IDE adapter cards that require IRQ14 are supported on slot 1 (P16) only. Switch1-
8 must be set ON to enable IRQ14. PCI IDE adapter cards that support configuration registers with proper IDE class
code information are automatically handled. For PCI IDE adapter cards that do not set the IDE class code, this option
must be set to ON. This will program the base registers to 1F0h - 1F7h and 3F6 - 3F7h. These devices will then work
with the main BIOS IDE support. The settings are Enabled or Disabled. The Optimal and Fail-Safe default settings are
Disabled.
IDE 32 Bit Transfer
32-bit data transfer on the IDE data port can be enabled through this option. If disabled, 16-bit data transfer is used by
the BIOS. 32-bit data transfers can only be enabled if IDE prefetch mode is also enabled. The settings are Enabled or
Disabled. The Optimal and Fail-Safe default settings are Disabled.
IDE Block Mode
This option enables multiple sector reads and writes for IDE drives. The settings are Enabled or Disabled. The
Optimal and Power-On defaults are Disabled.
PCI IDE Host Timing
The settings are Slow or Fast. The Fast setting saves one clock on the lead-off cycle of the onboard PCI IDE. The
Optimal and Fail-Safe default settings are Slow.
Excalibur PCI Pentium ISA Motherboard User's Guide
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