Any software that detects maximum CPU and RAM supported?

[pianowizard]

Is there any software that detects automatically the fastest CPU and the biggest RAM that a computer can support? I have the freeware PCWizard which sort of does that but it would say something like "Supported Speed: 1200MHz (or more)", and so it doesn't seem very accurate.

[bombledmonk]

If Sisoft Sandra doesn't work, then the best thing you can do is find a copy of your motherboard or computer manual.