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Prime95 (Portable)

29.4.5

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This package is likely a meta/virtual (*) or an installer (*.install) or portable (*.portable) application package.
  • Meta/virtual (*) - has a dependency on the *.install or the *.portable package - it is provided for discoverability and for other packages to take a dependency on.
  • Portable (*.portable/*.commandline (deprecated naming convention)/*.tool (deprecated naming convention)) - usually zips or archives that require no administrative access to install.
  • Install (*.install/*.app (deprecated naming convention)) - uses native installers, usually requires administrative access to install.
Learn more about chocolatey's distinction of installed versus portable apps and/or learn about this kind of package.

This package was approved as a trusted package on 7/2/2018.

Screenshot of Prime95

CPU Stress / Torture Testing

Prime95 has been a popular choice for stress / torture testing a CPU since it's introduction, especially with overclockers and system builders. Since the software makes heavy use of the processor's integer and floating point instructions, it feeds the processor a consistent and verifiable workload to test the stability of the CPU and the L1/L2/L3 processor cache. Additionally, it uses all of the cores of a multi-CPU / multi-core system to ensure a high-load stress test environment.

From the most recent "stress.txt" file included in the download:

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. are not up to spec, it can lead to incorrect calculations and/or unexplained system crashes.

Overclocking is the practice of increasing the speed of the CPU and/or memory to make a machine faster at little cost. 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.

Performing a stress test is simple:

  1. Download the software and unzip the files to your desired location. (Chocolatey does that for you!)
  2. Run the Prime95 executable and select "Just Stress Testing" when asked.
  3. The default options are sufficient to do a well balanced stress test on the system.

PACKAGE NOTES

To install Prime95 (Portable), run the following command from the command line or from PowerShell:

C:\> choco install prime95.portable

To upgrade Prime95 (Portable), run the following command from the command line or from PowerShell:

C:\> choco upgrade prime95.portable

Files

Hide
  • tools\chocolateyinstall.ps1 Show
    $ErrorActionPreference = 'Stop'
    $packageName  = 'prime95.portable' 
    $toolsDir     = "$(Split-Path -parent $MyInvocation.MyCommand.Definition)"
    $url          = 'https://www.mersenne.org/ftp_root/gimps/p95v294b5.win32.zip'
    $checksum     = 'A83FBD233AFD7AEC59CE0DF191E742BA22185FE85B0F13C3FF057DBD9FD7F3D9'
    $url64        = 'https://www.mersenne.org/ftp_root/gimps/p95v294b5.win64.zip'
    $checksum64   = '849735A66C5BAA80D4AAE6C5A65ABE91AD0F877CBDEC615026DA85E8EF4FA41E'
    $ExeFile      = 'prime95.exe'
    $ShortcutName = 'Prime95'
    
    $packageArgs = @{
      packageName   = $packageName
      unzipLocation = $toolsDir
      fileType      = 'ZIP' 
      url           = $url
      url64         = $url64
      checksum      = $checksum
      checksumType  = 'sha256' 
      checksum64    = $checksum64
      checksumType64= 'sha256'  
    }
    
    Install-ChocolateyZipPackage @packageArgs
    
    Install-ChocolateyShortcut -shortcutFilePath "$env:Public\Desktop\$ShortcutName.lnk" -targetPath "$env:ChocolateyInstall\lib\$packageName\tools\$ExeFile"
    Install-ChocolateyShortcut -shortcutFilePath "$env:ProgramData\Microsoft\Windows\Start Menu\Programs\$ShortcutName.lnk" -targetPath "$toolsDir\$ExeFile" -WorkingDirectory "$toolsDir"
  • tools\chocolateyuninstall.ps1 Show
    $packageName= 'prime95.portable'
    $ShortcutName = 'Prime95'
    
    if((get-process "prime95" -ea SilentlyContinue) -eq $Null){ 
            Write-Host  "prime95 not running. (Good!)" 
    }
    else{ 
        Write-Host  "Stopping Prime95..."
        Stop-Process -processname "prime95"
        Start-Sleep -s 3
     }
    
    remove-item "$env:Public\Desktop\$ShortcutName.lnk" -Force -ErrorAction 'SilentlyContinue'
    remove-item "$env:ProgramData\Microsoft\Windows\Start Menu\Programs\$ShortcutName.lnk" -Force -ErrorAction 'SilentlyContinue'

Virus Scan Results

In cases where actual malware is found, the packages are subject to removal. Software sometimes has false positives. Moderators do not necessarily validate the safety of the underlying software, only that a package retrieves software from the official distribution point and/or validate embedded software against official distribution point (where distribution rights allow redistribution).

Chocolatey Pro provides runtime protection from possible malware.

Dependencies

This package has no dependencies.

Package Maintainer(s)

Software Author(s)

  • George Woltman

Copyright

Copyright (C) Mersenne Research, Inc.

Tags

Release Notes

https://www.mersenne.org/download/whatsnew_294b5.txt

Version History

Version Downloads Last updated Status
Prime95 (Portable) 28.9.20161009 511 Sunday, October 9, 2016 approved
Prime95 (Portable) 28.9 259 Sunday, August 21, 2016 approved
Prime95 (Portable) 28.7 267 Tuesday, April 19, 2016 approved

Discussion for the Prime95 (Portable) Package

Ground rules:

  • This discussion is only about Prime95 (Portable) and the Prime95 (Portable) package. If you have feedback for Chocolatey, please contact the google group.
  • This discussion will carry over multiple versions. If you have a comment about a particular version, please note that in your comments.
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  • Tell us what you love about the package or Prime95 (Portable), or tell us what needs improvement.
  • Share your experiences with the package, or extra configuration or gotchas that you've found.
  • If you use a url, the comment will be flagged for moderation until you've been whitelisted. Disqus moderated comments are approved on a weekly schedule if not sooner. It could take between 1-5 days for your comment to show up.

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