I have a Dell Studio 1735 laptop that currently has an Intel Core 2 Duo that's 32 bit. I want to upgrade the cpu to an Intel Core 2 Duo Moblie Processor T9400 that's 2.53ghz 1066mhz Cache 6MB. I read somewhere that you could put up to a T9500 in it, so I got a T9400. I also read that you it won't work with a cpu that is more than 800mgz. This is the cpu I bought. Please let me know if it will work or if you need more information from me.