Hello, one day I was using my laptop then shut it down before going to sleep. The next morning I went to turn it off and it just wouldn't show anything, the light on the caps lock key blinks. I researched what the problem could be and some said try cleaning the ram stiks with an eraser and I tried but nothing, some said the cpu is broken so I bought a new cpu (my laptop has a replaceable cpu) but the problem still persists. My laptop is a Compaq presario cq62 - 220US. Hope someone can help and thanks in advance.