Advantech PCE-5120, User Manual

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PCE-5120 User Manual 36
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 PCE-5120, as
shown in Figure 3-4:
Figure 3.4: Advanced chipset features screen
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
When DRAM Timing Selectable is set to [Manual], this field is adjust-
able. This controls the CAS latency, which determines the time interval
between SDRAM starting a read command and receiving it. The options
are [3T], [4T], [5T], and [Auto].
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.