Memory tester software roundup

I recently got 2 sticks of 1GB memory for my system so the first thing I did was test it using some free memory testing software. I'm too paranoid, so I didn't want to rely on a single app, so I tried the following:

1. Windows Memory Diagnostic
   
   
   
   Direct from Microsoft's Online Crash Analysis team. My guess is that these guys spend all day long looking at uploaded Watson blue-screen dumps and they've figured out "patterns" in crashes due to flaky memory.


2. Memtest86
   
   
   
   Popular GPL memory testing software. One cool feature is that it'll tell you whether your memory is running in Dual Channel, whether PAT is enabled, etc. Though the screen-shot above doesn't show that probably because the screen-shot is from a virtual machine.


3. Memtest86+
   
   
   
   An updated version of memtest86 by more contributors.


4. DocMemory
   
   Years ago I used this software to detect some bad memory. I tried it again and it didn't seem to work right anymore (i.e. bizarre errors that didn't seem to be related to my memory). In fact, it even gave errors in a virtual machine.