Blbý nápad, to je. Pentium miesto Celerona tam samozrejme vložit pújde.

Toto píše Google na pár klikov :
these P4-M CPU's are compatible (they also have speedstep so you have longer running time if you use your laptop with battery, i wouldn't take a celeron): (P4-M 1.4-2.2 mhz exist but are probably not interesting for you) SL6VC 2.4ghz, SL6LS 2.4ghz, SL6K5 2.4ghz, SL6WY 2.5 ghz, SL6P2 2.5ghz, SL6WZ 2.6ghz, these are all 400mhz bus speed of course, i upgraded my Toshiba A10 from Celeron 2.0 to P4-m 2.5ghz, if you search you can find these models on E-bay, but don't be surprised by the prices, they are very high for 2.5 and 2.6 ghz as these are the highest speeds available for this platform

Nech starečka notebookoveho pokojne dožiť v stave v akom je. Je to zbytočná aktivita, výkonnostný nárast 7,8% ... možno, v niektorej aplikácii. Temer nepostrehnuteľné.