Chapter 3 – BIOS Setup Menus
3-11
Advanced Chipset Control Submenu
Use this submenu to change the values in the chipset registers and optimize your
system’s performance.
PhoenixBIOS Setup–Copyright 1985-95 Phoenix Technologies Ltd.
Advanced
Advanced Chipset Control
Item Specific Help
DRAM Speed:
[60ns]
If the line item you are
DMA Aliasing:
[Enabled]
viewing has specific help,
8-bit I/O Recovery:
[4.5]
it will be listed here.
16-bit I/O Recovery:
[4.5]
IRQ12 used by:
ISA bus
F1
Help
¯
Select Item
-/+
Change Values
F9
Setup Defaults
ESC
Exit
¨
Select Menu
Enter
Select
}
Sub-Menu
F10 Previous Values
Figure Chapter 3 -9. Advanced Chipset Control Submenu
Option
Description
DRAM Speed
Indicates the speed of the SIMMs installed. This is used to configure the system
for maximum performance.
DMA Aliasing
Disables DMA Aliasing if a device exists on the ISA bus that uses I/O ports 90h,
94h-96h, 98h, or 9Ch-9Eh.
8-bit I/O Recovery
Indicates the number of ISA clock cycles inserted between back-to-back I/O
operations
16-bit I/O Recovery
Indicates the number of ISA clock cycles inserted between back-to-back I/O
operations
Note
The options in this menu should be left in their default configurations.
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