Recommendations for Full Hardware Testing Software?

[leviathan]

Hello everyone,

I am looking for some software that is similar to what Techtool does on the Macintosh. I have some PC's that I would like to test the hardware, but cannot find a program that really goes through everything and gives me a good look at how all the hardware is doing. I would like it to be a bootable software package, like Techtool.

Any suggestions?

Thanks in advance!