|I suggest you read Response Number 4 again; namely|
"You probably have SpeedStep (CPU EIST) enabled. If that's the case, the multiplier will vary depending on load. This is done to keep the CPU temp down & lower the energy consumption. At times (especially at idle/no load conditions), the CPU is probably running at an even lower clock speed....1.2GHz (6 x 200Mhz) for example. If you disable CPU EIST, the CPU will run at full speed at all times."
And no, not a ram problem.