Corsair 2GB PC2-6400 C3 DDR2 Memory Review

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Stability Testing at Default Settings

How Do We Define Stable Memory?

Have you ever run across a review web site that reviews a product and shows a couple amazing scores and gives it an award? Sure you do as most review sites do just that, but how stable was it? I would be willing to bet that most sites don’t know what stable memory is and therefore give fairly inaccurate results. Yes, I hate to break the news, but there is more than just running a memory bandwidth test and calling memory stable! Ever wonder what some of the memory companies use to test their modules? So did we, and we found out that they use the RAM Stress Test Professional 2 (R.S.T. Pro2). It is a Self-Booting, Operating System Independent memory diagnostic card for exercising and validating RAM. The R.S.T. Pro2 runs all tests in protected mode which can completely and thoroughly test up to 64 gigabytes of memory. This utility provides users the options of running sophisticated test patterns to detect hard to find memory errors, which are not detected by other test software.

The Test System

While using the R.S.T. Pro2 we were able to find memory errors that other testing methods could not find or reproduce. Since we want and encourage our readers to follow up our testing on their own, we also used the free testing program called Memtest86 which is a stand alone memory test for x86 architecture computers that boots off a floppy disk. This software was getting old was unable to run on all platforms, so we will stick to the RST Pro2 for the time being. In recent months Chris Brady and some of the guys over at x86-secret have come up with Memtest86+, which is an updated version of the original program and it still happens to be free.

We also ran Prime95 while running loops of 3dmark2001 for a minimum of twelve hours to make sure that under hours of stress and heat buildup that the modules were truly stable.

We considered memory stable when it was able to run 1 extended pass of Memtest86+, twelve hours of Prime95/3dmark testing and ran without locking up while running all tests on the RST Pro2. Many consider if any errors are found using the RST Pro2 testing the memory has failed.

By this combination of tests we feel that this review is one of the most accurate completed in terms of memory stability. Sure, not everyone will agree with our stability testing methods, but not everyone can afford the cost of a review like this nor the time that went into this testing.

Bottom Line:

There is no industry standard for professional reviewers, but hopefully reviews like this will cause other professional reviewers to change their methods and ways of looking at memory.

Results:

The RST Pro2 tested the Base/Extended memory and after 5 loops no errors were found! Memtest86 was used and confirmed these results. We tested the Corsair XMS2 PC2-6400C3 memory kit on both the Intel 975 Bad Axe motherboard with an Intel 965 Extreme Edition and on the Foxconn C51XEM2AA motherboard with an AMD AM2 FX-62 processor with both platforms passing.

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