http://www.memtest.org/

Enhancement in v1.0 (Based on Memtest86 V3.0) :

Lots of bug-fixes, works now with all AMD64.
Added detection for Athlon 64 / Opteron
Added detection for latest Athlon XP (including Barton)
Added detection for latest Pentium 4 (including Prescott)
Added detection for SiS735/740/745/748/755/645/655
Added detection for ATi Radeon 9100 IGP (RS300)
Added detection for nVidia nForce/nForce2(400/Ultra)/nForce3/nForce3-S
Added detection for VIA KT266(A)/333/KT400(A)/KT600/PT800/PT880/K8T800
Added detection for i865P/PE/G/i875P/E7500/E7501/E7205
ECC initialization & ECC polling added for all AMD64 CPUs
ECC initialization & ECC polling added for i875P and E7501 & E7205
Added complete advanced settings detection for i875P, AMD64 and nForce2.
Added partial advanced settings detection for KT266(A)/KT333.
Corrected ECC Error not counted as a global error anymore.
Added a "safe-mode" (press F1 when memtest86+ loading) in case of freeze.
Source code now compatible with gcc 3

可以完全抓到並顯示RAM的參數,PAT與時脈設定...讓記憶體的特質完全顯示出來!
例如個人的Dual DDR560 RAM 1:1 CPU 280外頻測試....注意顯示128bit喔!