memtest86 怎么查看正反面坏位 memtest86是什么 _memtest86

文章插图
本篇文章给大家谈谈memtest86,以及memtest86是什么对应的知识点，希望对各位有所帮助，不要忘了收藏本站！
内容导航：

memtest86 怎么查看正反面坏位
MemTest86
memtest86一定要全跑完吗
memtest86 4.2使用说明
电脑蓝屏，屏幕出现“Memtest86+V2.11”怎么办
memtest86test8报错

Q1：memtest86 怎么查看正反面坏位
在纯DOS环境下输入Memtest，然后回车
这是一种内存条，需要在纯DOS环境下输入Memtest，回车启动后会自动开始检测内存。界面的上半部分是电脑的一些硬件信息和内存测试的进度。界面下半部分显示检测结果。如果连续运行几个小时，这里都没有任何错误信息的话，说明你的内存条是非常可靠的。如果内存有问题，会在这里列出缺陷的信息，并且显示成红色。
Q2：MemTest86
MemTest86 wasoriginallydeveloped by Chris Brady (BradyTech Inc) with a first release in 1994.
However, some of thetesting algorithmsused have been under development since 1981 and have been previously implemented on Dec PDP-11, VAX-11/780 and Cray XMP architectures.
Since then there has been more than a dozen new versions being released. Support for 64bit, new CPU types,symmetrical multiprocessorsand many other features have been added during this period.
MemTest86 was released asfreeopen source (GPL) software.
被不同人发展出来了一系列的版本，所谓是百花齐放百家争鸣且螺旋式优化改进啊~
新时代（64bit、DDR4）的到来，面临新的挑战。
In Feb 2013, PassMark Software took over the maintenance of the MemTest86 project from Chris.
This was around the time that a lot of technological changes were occurring. The 64bit era was here, DDR4 was coming, UEFI had already arrived and Microsoft's Secure boot technology threatened to prevent MemTest86 from booting on future PC hardware.
Starting from MemTest86 v5, the code was re-written to support self booting from the newer UEFI platform. UEFI is able to provide additional services that is unavailable in BIOS, such as graphical, mouse and file system support. Support for DDR4 & 64bit were also added and Microsoft agreed to code sign MemTest86 for secure boot.
The software (Free Edition) still remains free to use without restrictions. The MemTest86 v4 project is still maintained and remains open source, for use on old machines with BIOS. From V5 however the software is being released under a proprietary license. For advanced/enthusiast users or commercial applications, a professional version is available for users that require additional customizability and advanced features that may be more suitable for their testing needs. A comparison of the different versions can be found here. We have also created a support forum where users can discuss issues.
这里是它的发布历史轨迹
MemTest86 is the original, free, stand alone memory testing software for x86 computers. MemTest86 boots from a USB flash drive or CD and tests the RAM in your computer forfaultsusing a series ofcomprehensive algorithms and test patterns .
特点：（就关注这两点）
By running MemTest, you can ensure that your computers RAM iscorrectly functioning .
Unlike other memory checking software, MemTest is designed tofind all types of memory errorsincluding intermittent problems.
Therefore, it needs to be run forseveral hoursto truly evaluate your RAM. MemTest works with any type of memory.
Test 0 [Address test, walking ones, no cache]
Tests all address bits in all memory banks by using a walking ones address pattern.
Test 1 [Address test, own address]
Each address is written with its own address and then is checked for consistency. In theory previous tests should have caught any memory addressing problems. This test should catch any addressing errors that somehow were not previously detected.
Test 2 [Moving inversions, ones&zeros]
This test uses the moving inversions algorithm with patterns of all ones and zeros. Cache is enabled even though it interferes to some degree with the test algorithm. With cache enabled this test does not take long and should quickly find all "hard" errors and some more subtle errors. This test is only a quick check.
Test 3 [Moving inversions, 8 bit pat]
This is the same as test one but uses a 8 bit wide pattern of "walking" ones and zeros. This test will better detect subtle errors in "wide" memory chips. A total of 20data patternsare used.
Test 4 [Moving inversions, random pattern]
Test 4 uses the same algorithm as test 1 but the data pattern is a random number and it's complement. This test is particularly effective in finding difficult to detectdata sensitive errors . A total of 60 patterns are used. The random number sequence is different with each pass so multiple passes increase effectiveness.