28
http://www.tyan.com
3.12 – North Bridge Configuration
Options related to the north bridge chipset settings can be altered through the following.
Back2Back WriteRead
Turnaround
This setting allows you to adjust the speed at which WriteRead
function occurs. Leave on defaults for best results.
Back2Back ReadWrite
Turna round
This setting allows you to adjust the speed at which ReadWrite
function occurs. Leave on default for best results.
Back2Back Read Turnaround
This setting allows you to adjust the speed of Read turnaround.
Read Delay (tRD)
This setting changes the read delay time.
Activate2Precharge Delay
(tRAS)
This setting changes the memory precharge delay.
CAS# Latency (tCL)
This setting changes the CAS memory latency.
Write RAS# to CAS# Delay
(tRCD)
This setting changes the write memory delay timing.
Read RAS# to CAS# Delay
(tRCD)
This setting changes the read memory delay timing.
DRAM RAS# Precharge (tRP)
This setting changes memory precharge delay timing.
HyperThreading Enable
This setting allows you to take advantage of HyperThreading
enabled Xeon processors. Enabling HyperThreading allows a
compatible Xeon processor to process applications that are
written for a multi-processor system even if you are using only
one Xeon processor.
With HyperThreading, one Xeon processor that supports HyperThreading is capable of processing
data as though there were two Xeon processors. Depending on what operating system is being
used, it may recognize two Xeon processors as four processors when HyperThreading is enabled
because of the multi-processor characteristics of HyperThreading technology. If an operating
system is used that is only dual processor capable, it will display 2 processors when using two
Xeon processors regardless of whether or not HyperThreading is enabled.
3.13 – ICH3 Chipset Configuration
Please leave all options in this section at their default setting because they are crucial to
the stability of the system.
3.14 – Intel PCI-64 Hub 2 Chipset Configuration
Options related to the Intel PCI-64 hub and its settings can be altered through the following.
I/O Port Decode
This option allows you to adjust the decode size of the I/O ports.
RAS Sticky Error Handling
This option allows you to define how RAS errors are handled and
whether they are corrected or left as is.
IOAPIC Support in MP
Table
This option allows you to adjust settings for IOAPIC functions that
relate to multi-processor handling.
VGA Decode
Please leave this option at its default setting.
3.15 – ACPI
Options related to power management settings can be altered through the following options.
ACPI Aware O/S
Yes
No
Defines whether the OS can manage IRQs, DMAs, and
other system settings on its own.
ACPI Advanced
All settings discussed in following sections
