Still for the older not-UEFI system I think it's one of the best "life saver" apps for any system.. basically excluding all the debug problems you'd search anywhere else without it. Considering I even launched it in my 386 system I consider it the first app to use in any new build. Too bad it can't make similar tests for the vga rams and I don't understand if actually for older systems it tests L2 cache integrity too..