Specifications

Software Configuration
3–15
3.8 SETUP 6—PCI CONFIGURATION SETUP
The Little Board/P5i CPU BIOS incorporates automatic PCI IRQ configuration for peripherals. You can,
however, override the automatic features and specify PCI IRQ settings with SETUP 6. Figure 3–6 shows
what can be configured on SETUP 6. A description of each option is listed below.
PCI CONFIGURATION SETUP
Ampro Computers, Inc.
PCI BIOS Auto-Config : Enabled PCI to Mem. Write Buffer :Enabled
PCI to Mem. Read Buffer :Enabled
1st Available IRQ : 10 VGA Frame Buffer :Enabled
2nd Available IRQ : 11 Byte Merge For Frame Buf. :Disabled
3rd Available IRQ : 9 Fast-Back-TO-Back Cycle :Enabled
4th Available IRQ : 12 PCI Write Burst :Enabled
PCI IDE 2nd Channel : Enabled Primary Frame Buffer :Disabled
PCI IRQ Activiated By : Edge
IDE IRQ Map To : ISA
ESC:Quit ↑ ↓ → ← : Select Item
F1 :Help PU/PD/+/- : Modify
F5 :Old Values (Shift)F2:Color
F6 :Load BIOS Defaults
F7 :Load Setup Defaults
Figure 3–6 SETUP 6—PCI Configuration SETUP
This SETUP screen allows you to configure the following parameters:
• PCI BIOS Auto-Config—when enabled, allows the BIOS to auto-configure the PCI bus. Enabled is
the default state.
• Nth Available IRQ— set these as shown in Figure 3–6.
• PCI IDE 2nd Channel— set to Enabled if you are using the second IDE channel (that is, if you
have 3 or 4 IDE drives in your system).
• PCI IRQ Activated By— Edge or Level. Always specify Edge.
• IDE IRQ Map To— always set this to ISA.
• Advanced Bus Settings—the remaining settings are system settings that should not be changed by
the OEM or end-user. Contact Ampro Technical Support for details if you think you may need to
change any of these parameters.