ECS Z77H2-A2X Deluxe User Manual page 63

Read CAS# Precharge(tRTP) (5)
This item controls the Read to precharge delay for memory devices, in memory clock
cycles.
Four Active Window Delay(tFAW) (20)
This item controls the four bank activate time in memory clock cycles.
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Z77H2-A2X Deluxe USER MANUAL
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