Benchmark/ Break in test?

Hi, i am looking for a benchmark or break in test for a computer. I have a computer that is running like crap and we want to break it in and or see what is wrong with it, but we are cannot seem to find any software that can do this for us. Thanks for your help

You can try SiSoft Sandra, at least I think that is what it is called.

Thanks, i am downloading it now and i will try it.