Will the stock cooler on a eMachines T6212 desktop CPU cool a Athlon 64 x2 3800+ dual core CPU? The motherboard apparently fits this CPU and I am just waiting for the processor to arrive so I can put it in, but I am not certain the stock CPU heatsink and fan can cool a dual core (I believe the original CPU is a 3200+ single core Athlon 64 - but it could be a 3500+)