Advantech PCA-6188, User Manual

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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 PCI-6188, as
shown in Figure 3-4:
3.5.1 DRAM Timing Selectable
This item allows you to control the DRAM speed. The selections are
"Manual" or "By SPD".
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. The options are "2", "2.5" or "3".
Figure 3.4: Advanced chipset features screen
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.