Brian S. wrote:
The easiest way to "clean" RAM cards is to fully insert them, then remove them 5-6 times. This will refresh the contact surfaces on the RAM slot as well as the RAM itself.
I work on pcs and sometimes the oddest problems are fixed by "cleaning the RAM". I have lost count of how many computers I have brought back to life by simply reseating the MEMORY sticks. I assume all brands have same issue, I work on HP and Dells and it is about equal for this type of problem.