Great program, I started using it in 1996 to test and tweak the intel 233 MHz Pentium II processors that we over clocked to 350 MHz . I think I still have the disk that downloaded the program onto. Along with Win 95 on Floppy disk.

Like one 3 months ago I was overcloking my cpu and i ran prime for 24 hours with no errors. memtest for like  8 hours and ran a lot of bench, stable with no crash.So I decided to buy sandra, when I started the test it crashed, I increased the vcore and that was it. I no longer  100% confident of prime95 anymore,but it still helps when testing your overclock..