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Fast Write to Read Turnaround

Common Options : Enabled, Disabled

Quick Review

This BIOS feature controls the Write Data In to Read Command Delay (tWTR) memory timing. This constitutes the minimum number of clock cycles that must occur between the last valid write operation and the next read command to the same internal bank of the DDR device.

Enabling this BIOS feature naturally allows faster switching from writes to reads and consequently better read performance.

Disabling this BIOS feature reduces read performance but it will improve stability, especially at higher clock speeds. It may also allow the memory chips to run at a higher speed. In other words, increasing this delay may allow you to overclock the memory module higher than is normally possible.

It is recommended that you enable this BIOS feature for better memory read performance if you are using DDR266 or DDR333 memory modules. You can also try enabling it with DDR400 memory modules. But if you face stability issues, revert to the default setting of Disabled.

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