Let me be clear on the impact. It either works or it doesn't. If it doesn't, there are two possibilities for what happens. First, it could not complete POST. The system might generate some sort of error indicator (flashing LED, speaker beeps, onscreen message, etc.) and then it will hang. Second, it could complete POST, go into the boot phase and then cause problems (spontaneous reboots, hangs, etc.) over time. Regardless of what happens, I have never seen a case where over-sized SODIMMs actually cause physically damage to the processor, the motherboard or the SODIMMs, so you don't need to worry about it from that standpoint. I am saying talk to the laptop manufacturer first simply so that you do not get into a situation where you have purchased expensive memory that you (now) cannot use.
...S
