Free utility for displaying lots of useful Windows, Network and Hardware info!

System Information Viewer (SIV)

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System Information Viewer (SIV) 5.51

  -  13.61 MB  -  Freeware
Free Download

Security Status

  • Latest Version

    System Information Viewer (SIV) 5.78

  • Operating System

    Windows XP / XP64 / Vista / Vista64 / Windows 7 / Windows 7 64 / Windows 8 / Windows 8 64 / Windows 10 / Windows 10 64

  • User Rating

    Click to vote

  • Author / Product

    Ray Hinchliffe / External Link

  • Filename

    siv_v5.51.zip

  • MD5 Checksum

    289b157894a791dcea2cebe91331f20b

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of System Information Viewer (SIV) 5.51.


For those interested in downloading the most recent release of System Information Viewer (SIV) or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


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If you have any questions or ideas that you want to share with us - head over to our Contact page and let us know. We value your feedback!

Download System Information Viewer (SIV) 5.51

  • System Information Viewer (SIV) 5.51 Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

    System Information Viewer (SIV) 5.51 Screenshot 1
  • System Information Viewer (SIV) 5.51 Screenshot 2
  • System Information Viewer (SIV) 5.51 Screenshot 3
  • System Information Viewer (SIV) 5.51 Screenshot 4

What's new in this version:

- Added Windows 10 21H1 Build 20185 support. Enabled operation of [ACPI Eval], etc..
- Enhanced the SIV64s such that [Prime Numbers], can process up to at least 10^10 on most Windows 64-bit systems and more if you have enough memory. I have validated 10^12, but needed 44GB of available memory and took about 6 elapsed days, 204 days of CPU time! Added the ability to start processing from the end of the currently loaded data. The data can be from either a save file or freshly calculated. Disable Close when calculating prime numbers, improved aborted shutdown, added number of pairs confirmation data for all gaps up to 100 and the First Prime Numbers for gaps up to 1550. Added [Prev], [Check] and [Next] to check if a number is prime. Added Right/Click menus to all the Up/Down controls. Enhanced [Prime Numbers Pairs] and [ Load ] to use multiple threads when there are many Prime Numbers to process.
- Added ASRock B550M-ITX + ASUS Maximus XII Extreme + TXP4 + Gigabyte TRX40 Xtreme + HP Z820 (158B) motherboard support

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