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Effective URL: https://www.karhusoftware.com/ramtest/
Submission: On December 17 via api from US — Scanned from DE

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RAM Test
Introduction Buy a license FAQ

RAM Test is a fast and reliable memory testing software capable of detecting
both faulty hardware and overclock instability. Its key features include:

 * An easy-to-use graphical user interface
 * Support for up to 8 TB of RAM and 64 threads
 * Optimized code paths for AVX/AVX2 capable processors
 * Portability (i.e. can be run from a USB flash drive)

RAM Test 1.1.0.0 screenshots:

  

A single license allows personal use of the software on up to five computers at
a time. The price of a license is 9,99 € including VAT 24 %.

I am 16 years of age or older
I have read, understood and accepted:
 * Karhu Software Privacy Policy
 * Karhu Software Return And Refund Policy
 * RAM Test End-User License Agreement
 * RAM Test README

Buy now (PayPal)

Once the payment is complete, a download link and a product key will be
automatically sent to your e-mail address.

Q: An error was detected, is my RAM bad?

A: If you haven't overclocked your system, yes.

Q: The test runs very slowly on Windows 7, how to fix this?

A: Change the RNG (Random Number Generator) to XORWOW on the Advanced tab. The
default RNG is a function provided by the Windows API and its implementation is
somehow different on Windows 7 causing poor performance.

Q: How long should I test?

A: Error detection rates by test duration*:

 * Duration ≤ 1 min: 47,44 %
 * Duration ≤ 5 min: 74,41 %
 * Duration ≤ 10 min: 83,66 %
 * Duration ≤ 30 min: 95,67 %
 * Duration ≤ 60 min: 98,43 %

* RAM Test 1.1.0.0, stop on error

Q: How much coverage is enough?

A: Error detection rates by test coverage*:

 * Coverage ≤ 100 %: 64,57 %
 * Coverage ≤ 200 %: 75,79 %
 * Coverage ≤ 400 %: 82,68 %
 * Coverage ≤ 800 %: 91,34 %
 * Coverage ≤ 1600 %: 96,06 %
 * Coverage ≤ 3200 %: 98,03 %
 * Coverage ≤ 6400 %: 99,41 %

* RAM Test 1.1.0.0, stop on error, normalized to 16384 MB test region size

Q: Can CPU cache instability distort the test results?

A: Yes, but on default settings this is very unlikely. You shouldn't start
overclocking RAM until your system is otherwise completely stable.

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