33 Chapter 3
3.5 Advanced Chipset Features
By choosing the “Advanced Chipset Features” option from the “Initial
Setup Screen” menu, the screen below will be displayed. This sample
screen contains the manufacturer’s default values for the PCA-6186, as
shown in Figure 3-4:

3.5.1 DRAM Timing Selectable

This item allows you to control the DRAM speed.

3.5.2 CAS Latency Time

This controls the latency between DDR RAM read command and the
time that the data actually becomes available. Leave this on the default
setting.

3.5.3 Active to Precharge Delay

This item allows you to select the value in this field, depending on
whether the board has paged DRAMs or EDO (extended data output)
DRAMs. The Choice: EDO 50ns, EDO 60ns,Slow, Medium, Fast, Turbo.
Note: DRAM default timings have been carefully cho-
sen and should ONLY be changed if data is
being lost. Please first contact technical sup-
port.
Figure 3.4: Advanced chipset features screen