樓主可以參考 這一篇 .

我在 DFI NF3 250GB 板用 2 X 512MB 双面 TCCD 調的參數,也許有些參考價值:
外頻278MHZ, DRAM 250MHZ, CPU Sempron 64 (9 X 278 = 2502 Mhz)

Dram Frequency Set: 180(Mhz)(9/10),
Command Per Clock: Enable,
CAS Latency Control(tCL): 2.5,
RAS# to CAS# Delay(tRCD): 3,
Min RAS# Active Timing(tRAS): 7,
Row Precharge Timing(tRP): 3,
Row Cycle Time(tRC): 7,
Row Refresh Cycle Time(tRFC): 14,
Row to Row Delay(tRRD): 2,
Write Recovery Time(tWR): 2,
Write to Read Delay(tWTR): 2,
Read to Write Delay(tRTW): 2,
Refresh Period(tREF): 4708,
Write CAS# Latency(tWCL): 1,
DRAM Bank Interleave: Enable,
DQS Skew Control : Increase Skew,
DQS Skew Value: 255,
DRAM Drive Strength: Level 1,
Max Async Latency: 7 NS,
Read Preamble Time: 6 NS,
Idle Cycle Limit: 256 Cycles,
Dynamic Counter: Enable,
R/W Queue Bypass: 02X,
Bypass Max: 07X,
32 Byte Granulation: Disable(8 Bursts)

以上參數, TCCD 和 BH5 皆可用,BH5 我設 DRAM Drive Strength: Level 2.
要注意不同制程的 CPU, 可能需設不同參數,如:
ClawHammer 的 2800+, Dynamic Counter 要設 Disable, 32 Byte Granulation 要設 Enable.

DFI LanParty 板不容易搞,要有些耐心.
我設的參數,是在爬文後,再用 MemoryTest 測試每項設成不同參數的穩定性後得到的最滿意參數.
而體質較差的 TCCD 或 BH5 , Read to Write Delay(tRTW) 就要設成 3.