CPU Upgrade on Acer Extensa 5630G-644G32Mn

[Olenka]

i want to buy a new processor for my Acer and I see these models:

• T7700 - Intel® Core2 Duo Processor T7700 (4M Cache, 2.40 GHz, 800 MHz FSB) 68€
  
• T7300 - Intel® Core2 Duo Processor T7300 (4M Cache, 2.00 GHz, 800 MHz FSB) 48€
  
• T7500 - Intel® Core2 Duo Processor T7500 (4M Cache, 2.20 GHz, 800 MHz FSB) 58€
  
• I want the T7700 model but I don’t know if is compatible. I have now a T6400 2.0 GHz.

Any recommendation?

[Abenaki]

Extensa Travel Mate 5630G and 5730 is the same laptop and share the same service guide. According to this guide is the CPU working in this unit:

• CPU INTEL CORE2DUAL P8400 PGA 2.26G 3M 1066 25W (KC.84001.DPP)
• CPU INTEL CORE2DUAL P9500 PGA 2.53G 6M 1066 25W (KC.95001.DPP)
• CPU INTEL CORE2DUAL T9400 PGA 2.53G 6M 1066 35W (KC.94001.DTP)
• CPU INTEL CORE2DUAL T9600 PGA 2.8G 6M 1066 35W (KC.96001.DTP)
• CPU INTEL CORE2DUAL P8600 PGA 2.4G 1066 25W 3M (KC.86001.DPP)

[Fox28]

Unfortunately I am limited to the models listed in the first post, because they are a guy who wants to sell in my town. I do not want to buy on eBay; they are always kept in the Customs House. I was thinking about the T7700, this would work? I think it's pretty fast.

[Iroquois]

I found this:
INTEL CPU T9400 2.53G PGA CORE2DUAL 6M 1066 35W for 55 € and I am thinking of buying