Summary: returned to seller I have a Dell D610 laptop it has a 533 bus speed and will not allow this cpu to work with it, it currently has a 1.8 dou core intel 533 cpu, it is very efficient, I still hope to upgrade this to 2.26 or 2.23 Ghz intel Duo Core cpu, it is more than sufficient, I'm sure the upgrade would be noticed but the present 1.8 is adequate
I would recoment this item to upgrade laptops with Intel GM960 chipset.
4 June 2012
Summary: I used this CPU to upgrade my laptop. The laptop ASUS X80l has Intel GML GM960 chipset (North Bridge) and it had an Intel Dual Core T2370 1.7 GHz CPU. I replaced old CPU by this new (used) one Intel T7500 2.2 GHz CPU and it works almost perfect.
ex well worth purchasing breaths new life into older machines
3 April 2012
Summary: item was exactly as i expected but i purchased it as a gamble to upgrade a celeron based emachine it didnt work luckily i had a few other laptops around and my wifes ended up getting the cpu instead of the emachine no fault of the cpu as it works great in my wifes laptop and her old cpu gave the emachine laptop its dual core upgrade the cpu was well worth the price i paid for it $29