Replacing Laptop CPU

[Kanuck]

I currently have a laptop with the following specs:

Intel Pentium 4 3.0 Ghz (Northwood)
512 MB DDR RAM
60 GB Hard Drive
ATI Radeon 9600 Mobile (64MB)

I love my laptop, it's very powerful and can run most games, there is just one issue. It's battery life. If i'm gaming on it, it honestly lasts about half an hour, if I'm browsing the web or typing something up its usually closer to an hour. Pretty rediculas considering most laptops can last upwards of two hours.

I was thinking that maybe if I was able to replace the CPU with something less power hungry such as a Pentium M it would really help out the battery life without compromising the ability to run games. The CPU is just a standard socket 478 Northwood P4 right now. Is it possible to replace this with a Pentium M? Also, this is a question sort of on the side, but is Pentium M the same as Centrino or is Centrino something completely different. If I were to replace the CPU how much would it help the battery life and also is there anything else I could replace in my laptop that would help out aswell.

Here's a pic of my CPU-Z on the laptop:
http://img480.imageshack.us/img480/97/laptop9aw.jpg

Thanks,

Aaron

[MRBIGSHOT]

i dont think the pentium m is the right socket.

[Kanuck]

http://www.legitreviews.com/article.php?aid=178

[MRBIGSHOT]

sorry had a brain fart there. mabey with a bios update?

[i found nemo]

only works on asus mobo's read the stickies

[Doumz]

since you're laptop is made to support desktop cpu,you wont be able to run Pentium M on it

you're best bet would be to underclock you're cpu and lower the voltage,this could help with battery life

set you're laptop to power saving mode even while gaming,this may force you to lower you're game setting ingame,but it may help

[uOpt]

No way to do this.

Centrino is the whole architecture, composed of CPU (Pentium-M or Celeron-M), chipset, wireless chip, cute logo and big marketing budget.

[Serra]

There is one simple solution: buy a better battery. The batteries that come stock with laptops aren't too good compared to what compatible models you can get from the manufacturers.

~ Serra