引用:
|
作者orinsinal
可以參考此篇文章(英文).
http://www.dfi-street.com/forum/showthread.php?t=11397
Row Cycle Time(tRC)
”This BIOS feature controls the memory module's Row Cycle Time or tRC. The row cycle time determines the minimum number of clock cycles a memory row takes to complete a full cycle, from row activation up to the precharging of the active row. Formula-wise, the row cycle time (tRC) = minimum row active time (tRAS) + row precharge time (tRP). ... |
此項Bios調整設定，控制了記憶體模組的 Row Cycle Time (又稱tRC 。Cpu-Z顯示為
Bank Cycle Time (Trc) )
Trc 數值決定記憶體一個完整的循環週期時間
(從 row activation up to the precharging of the active row 為止)
公式就是:Trc=tRAS+tRP(RAS# precharge)
所以當tRAS與RP最小，您可以獲得最小的Trc值。
引用:
|
作者orinsinal
Therefore, it is important to find out what the tRAS and tRP parameters are before setting the row cycle time. If the row cycle time is too long, it can reduce performance by unnecessarily delaying the activation of a new row after a completed cycle. Reducing the row cycle time allows a new cycle to begin earlier. However, if the row cycle time is too short, a new cycle may be initiated before the active row is sufficiently precharged. When this happens, there may be data loss or corruption. For optimal performance, use the lowest value you can, according to the tRC = tRAS + tRP formula.
...
|
因此，要獲得Trc值，您需要先確定您的最小 tRAS與 tRP。
如果您設定的Trc值，比tRAS+tRP還小...記憶體在傳輸訊息時，
可能發生一個新的循環在記憶體重新充滿電之前開始，這將造成資訊喪失或是中斷。
又如果您設定的Trc值過大..則新的週期開始之前，將會有不需要的等待時間.....
以上..