I usually use vinegar and a toilet brush for computer components.
Failing that, you have to find a red heifer without spot, wherein is no blemish, and upon which never came yoke.
Sacrifice the cow and and burn outside your camp (the Mount of Olives will work nicely, if nearby). Cedar wood, hyssop, and scarlet should be added to the fire, and the remaining ash is placed in a vessel containing pure water. The water must be “living” or spring water.
Sprinkle this water on your computer.