Freeware Descriptions:
Prime95 is a program which searches for very large prime numbers. It has become extremely popular among PC enthusiasts and overclockers as a stability testing utility.
Here is complete features (taken from authors site):
It includes a “Torture Test” mode designed specifically for testing PC subsystems for errors in order to help ensure the correct operation of Prime95 on that system, but can also be used to stress test a PC. People who are overclocking their system may use the torture test as an indication of the stability of their system.
If your computer can run Prime95 for 24 hours without any errors, then you can usually assume that your CPU, and the parts of the motherboard which interface with the CPU and RAM, are stable and working well.
What’s New in version 25.8:
- Bug fixed in smart affinity on hyperthreaded CPUs.
- Bug fixed in setting a thread priority other than 1.
- Off-by-one-bit bug fixed in the benchmarking of trial factoring.
- In rare case an infinite loop could occur when the computer ID in the spool file did not match the current computer ID.
- The “days between checkin” value now has a range of 1 to 7 days. In version 24, the range was 1 to 60 days with a default of 28 days.
- Fixed bug where switching users on a Windows machine caused computer GUIDs to be erroneously regenerated. You may need to suffer through one more regenerated GUID before the fix takes effect.
- A bug where some low memory situations on a multi-core machine resulted in one or more worker threads sat idle has been fixed.
- A crash bug doing 61 and 62 bit trial factoring on Pentium CPUs that do not support the CMOV instruction was fixed. On these same CPUs a bug was fixed when factors smaller than 2^60 was found.
File Size / OS:
- 989 KB / Windows 9x - ME - 2000 - NT - XP - 2003 - Vista
Download Prime95 v25.8:
