memtest86

http://d.hatena.ne.jp/overtech/ から
v3.1リリース


* Added processor detection for newer AMD processors
* Added new "Bit Fade" extended test
* Fixed a complile time bug with gcc version 3.x.
ちなみに、memtest86+

* Enhancement in v1.11 : *

* New Features
o Added detection for Pentium-M 0.13 & 0.09 µm (Banias & Dothan)
o Added detection for Pentium 4-M 0.09µm (Prescott)
o Added detection for Centrino platform
o Added complete advanced settings detection for i852 and i855 series (Mobile)
o Added experimental detection for ALi M1687, AMD8000 and Intel i7505
o Added detection for VIA KM266/KN266/KM400 and SiS645/645DX/648/748
o A newsletter for memtest86+ update is now available. Check www.memtest.org
* Bug Fixes
o Instant-Reboot and crash with Prescott CPUs solved
o Channels detection code for nForce2 rewritten.
o Thoroughbred B and Duron Applebred now detected as 0.13µm
o Added i848P to springdale's string.
o Pass Count now resetted when selecting individual test
o Now compile again with gcc2
o Lots of others Bug Fixes


Enhancement in v1.00 (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

なんだそうです。どちらがよいのか?