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I have a Toshiba Satellite L455-S5975 which is about three years old. The processor is currently an Intel Celeron 900. Does anyone know if it is possible to upgrade this to a newer one?

I have heard the Core 2 Duo T6600 is a compatible replacement for my processor on other brands of computers, and I know the two have the same socket type (PGA478). I mostly need to know if this or any other newer processors are compatible with the Satellite's motherboard.

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not a hard and fast rule but the other options for the same model would be a safe bet. – Journeyman Geek Oct 24 '12 at 4:53

Looks like you can do it.

They did it with an Intel T7250, which looks pretty cheap on ebay (under $20). Definitely monitor your temps afterward and apply new thermal paste.

Here is another post where the guys give other CPU options: here. Just double check your chipset. Looks like you should be okay and if you're successful, that'll be a huge boost for you!

Unfortunately no "how-to's" nor "this will definitely works", but it sure looks like it.

Good luck!

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