User Guide

Hardware Installation
2-7
2.2.6 SPK Out
JP27
1-2
2-3
SPK Out
Disabled
Enabled
This jumper is used to enable or disable
speaker out.
JP27
1
2
3
Disabled
JP27
1
2
3
Enabled
2.2.7 DC/Host Clock Ratio
JP23
1-2
3-4
5-6
DC/Host Ratio
Auto (default)
1/1
3/2
To improve system performance, this motherboard
has implemented this jumper for setting the ratio of
the display cache and CPU external frequency.
JP23
1 3 5
2 4 6
Auto
(Default)
JP23
1 3 5
2 4 6
1/1
JP23
1 3 5
2 4 6
3/2
There is a "66/100" signal pin from CPU for the chipset to automatically identify
AGP clock, this is important for jumperless design. The default setting is Auto.
Auto: No matter what the CPU type is, the onboard AGP will run at 100MHz.
We recommend that you remain the default setting.
1/1: The display cache runs at a speed as same as the CPU external clock.
3/2: The display cache runs at a speed of 3/2 CPU external clock.
Below is a table for better understanding: