Advantech PCA-6186 user manual Advanced Chipset Features, Dram Timing Selectable, CAS Latency Time

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:

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

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.

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