Prime95 and P4 531

[Taffy Apple]

I've just done a budget upgrade for someone and I wanted to do a stress test to make sure the system is stable, and Prime95 was suggested.

However, I can't create 2 instances to test the whole processor, I'm just getting 50% cpu usage. As you guys probably know more about it than me, can somebody enlighten me.

Cheers

 

[medel]

run the 2nd instance from another folder and it should allow 2 at once