I have a laptop ASUS m51sn with T5550 CoreDuo 1.83 Mhz and I'm thinking of upgrading it with T9500 CoreDuo 2.6.
Is it possible? I mean is laptop CPUs are usually fixed to the motherboard?
Will some extra cooling upgrade be necessary?
if it's possible, what characteristics should I be looking at of a new CPU to buy a right capable one for my laptop?
I'm not to sure because the Lithography is 45nm on the X9000 and T9500 and the Lithography on the T5550 and T7500 are 65nm. I would stick with the merom. The Penryn sockets say PGA478 and the merom sockets say PPG478. You could try it but it would a costly guess. You can look at the link I sent comparing the X9000 here: http://ark.intel.com/Compare.aspx?ids=34443,29761,33918...,
After looking at all compatable cpu's the T7600 will be the best upgrade for you. Make sure that you buy a good thermal paste (Zero-Therm) and a thermal paste remover for your new install. Try and look for assembly instructions on your specific laptop so you don't break it taking it apart
No problem, I just wouldn't want you to buy the one that wont work then you end up with a paper weight. The only thing that worries me may be heat because you going from like 1.8 ghz or something like that to almost 3.0 ghz. But i think you should be fine with the T7600.