Xycom XVME-654, Manual

Page: 39 / 98

Chapter 3 – BIOS Setup Menus
3-12
Advanced Chipset Control Sub-menu
This menu can be used 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 read timing: [Normal] If the item you
DRAM write timing: [Normal] are viewing has
I/O recovery time setting: [0µs] specific help, it will
be listed here.
-PCI Features-
CPU to PCI write buffer: [Enabled]
PCI to DRAM buffer: [Enabled]
F1 Help
↑↓
Select Item -/+ Change Values F9 Setup Defaults
ESC Exit
←→
Select Menu Enter Select » Sub-Menu F10 Previous Values
Figure Chapter 3 -8. Advanced Chipset Control Sub-menu
Table Chapter 3 -7 describes the Advanced Chipset Control Sub-menu options.
Table Chapter 3 -7. Advanced Chipset Control Sub-menu Options
Option Description
DRAM read timing Selects the DRAM read timing speed. Choices are Slow, Normal, Fast, and
Fastest. The default is Normal.
DRAM write timing Selects the DRAM write timing speed. Choices are Slow, Normal, Fast, and
Fastest. The default is Normal.
I/O recovery time setting Sets the minimum time required between back-to-back I/O operations. The
default is 0 µs, which allows the system to operate at the fastest rate.
CPU to PCI write buffer Enables CPU to PCI write buffer feature for improving the CPU to PCI write
performance.
PCI to DRAM buffer Enables PCI to DRAM buffer feature for improving performance.
Technical Note
The options in this menu should be left in their default configurations.
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