Memory dump our computer restart randomly and the message show physical memory dump...................which hardware causes of this

There are essentially two major causes of the physical memory dump screen: Running way to many programs at once, errors in the Windows registry.The first cause can be fixed rather easily. Simply run fewer programs or purchase additional RAM or processor upgrades. Your computer is running past its specified limits. But keep in mind the blue screen of
death should happen very infrequently. If you see the physical memory dump blue screen more often then the problem is errors in the Windows registry.This is a more abit of a harder problem to deal with. The registry is the most important component of your computer. The registry contains settings and information to run all software and hardware on the computers. When there are errors in the registry it disrupts the computers ability to communicate. When the system cannot compute, it freezes up and displays the Windows blue screen.
I found a registry cleaner that is free and works rather well. It is named cCleaner, has been around for some time and did I mention FREE...Download it from thelink below run it should clean up your registry...where good men fear to tread.

http://www.ccleaner.com/ccleaner-20

good luck, please leave a rating...thank you