RAM Stress Test Pro2!

Memtest86+ is a free-to-download memory test software designed to test and stress test an x86 or x64 architecture computer's random access memory (RAM) for errors.It tries to verify that the RAM will accept and correctly retain arbitrary patterns of data written to it, and that there are no errors which make different bits of memory interact, or in addressing memory.

MemTest86 is a memory test for x86 computers.

GoldMemory is a self-bootable, DOS-based, standalone memory subsystem testing software.

DocMemory Diagnostic, an advanced self-bootable PC Memory Diagnostic Software is a rigorous test pattern exercises both the PC Base and Extended Memory to locate defective memory, all carried out without the need for user to disassemble memory from the PC.

M2K MemScope is a free memory testing software program from the makers of Micro-Scope - a large suite of professional, time tested (and expensive) computer diagnostic tools.

The Windows Memory Diagnostic tests the Random Access Memory (RAM) on your computer for errors. The diagnostic includes a comprehensive set of memory tests. If you are experiencing problems while running Windows, you can use the diagnostic to determine whether the problems are caused by failing hardware, such as RAM or the memory system of your motherboard. Windows Memory Diagnostic is designed to be easy and fast. On most configurations, you can download the diagnostic, read the documentation, run the test and complete the first test pass in less than 30 minutes. »