BCM RX945GC, Руководство пользователя

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3.7 Advanced Chipset Features
DRAM Timing Selectable
Control the DRAM timing manually by the SPD (EEPROM on the RAM module).
DRAM RAS# To CAS# Delay
This field allow you to insert a timing delay between the CAS and RAS strobe. Avalable choices: 2 or 3.
DRAM RAS# Precharge
Select the number of CPU clocks allocated for the RAS# signal to accumulate its charge before the DRAM
is refreshed. Available choice : 2 or 3.
Precharge delay (tRAS)
Select the delay between active and precharge command.
System Memory Frequency
Sets the frequency of the RAM module.