Which torture test prime95

Today's computers are not perfect. Even brand new systems from major manufacturers can have hidden flaws. If any of several key components such as CPU, memory, cooling, etc.

Typically, overclocking involves pushing a machine past its limits and then backing off just a little bit. For these reasons, both non-overclockers and overclockers need programs that test the stability of their computers.

This is done by running programs that put a heavy load on the computer. Though not originally designed for this purpose, this program is one of a few programs that are excellent at stress testing a computer. The Prime95 Wikipedia page has an excellent overview on using Prime95 to test your system and ensure it is working properly. The tips presented there should be helpful regarding how long to run the torture test and provide a solid guideline on how long to run the Prime95 stress test.

Upgrade the software. Stop and exit your current version, then install the new version overwriting the previous version. You can upgrade even if you are in the middle of testing an exponent. Please consult the readme. Otherwise, you will need to address your question to one of the two people who wrote the program. Such problems include errors contacting the server, problems with assignments or userids, and errors on the server's statistics page.

All other problems and questions should be sent to George Woltman , but please consult the forums first. However, please do send bug reports and suggestions for improvements. Other than that restriction, you may use this code as you see fit. The source code for the program is highly optimized Intel assembly language. There are many more-readable FFT algorithms available on the web and in textbooks.

The program is also completely non-portable. If you are curious anyway, you can download all the source code This file includes all the version Last updated: Luke Welsh has started a web page that points to Richard Crandall's program and other available source code that you can use to help search for Mersenne primes.

At this time, Ernst Mayer's Mlucas program is the best choice for non-Intel architectures. User Name Remember Me? How long should I run Prime95 torture test? Prime95 is often used for stability testing especially with us overclockers however it seems to be a very debated topic as to how long one needs to test a PC before saying that its stable. The Gold Standard sort of speak seems to be 24 hours Whats never really talked about is the technical reasons as to why 24 hours is the Gold Standard?

Is there an actual technical reason or is this just some arbitrary number that is been passed around the internet? Is there an ideal amount of time that one should test the PC for? Most desktop rigs running Prime95 reach their maximum operating temp after 10 to 15 minutes; most overclocking failures will manifest themselves because thermals are what gets in the way of most overclocks. As long as I was willing to accept occasional hard crashes of my machine, I called an overclock "stable" if it lasted an hour on P Some custom-watercooled systems have quite a lot of heat capacity in the water, and take hours to reach maximum CPU temp.

Once I started doing tasks where accuracy mattered and crashes could cost me a day's computation or more, I started testing with P95 for 24 hr or more. Some failures, particularly RAM hiccups, manifest themselves very rarely. If I'm overclocking RAM to any settings more aggressive than SPD built-in settings, I run torture tests for 48hr or more to try to ensure memory is stable.

I used to test each separately in hopes of identifying the culprit for a failure, and found that two separately stable OC settings for cpu and ram could combine to make for rare crashes and data corruption. Another reason to do 24hr test is that an OC that's right on the edge of instability might work fine in the evening, but fail in the heat of the day. All Topics. Feature Requests. Sort by.

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