I'm interested in upgrading the processor for my Vostro 1500 laptop but I was wondering about the upgrades available to me. Currently I have a T7250 and was thinking of upgrading to a T9300 which I believe is compatible with my laptop. Recently I noticed a few new processors, namely T9400 and P9500. Both these processors have a FSB of 1066 compared with the 7250s and 9300s 800. Are these newer processors compatible? Would I need to flash the BIOS to support these CPUs or am I out of luck?
The T9300 will work. The new CPUs on the 1066 MHz bus aren't supported - the system doesn't have the proper chipset for that.
Well, we know from 6 years ago that the T7250 and T9300 will work - those would represent quite an upgrade from your Celeron. If you don't like those, then feel free to experiment with any that are supported on the 1500's chipset, although just because they are supported by the chipset doesn't mean they will work in Dell's implementation on this particular machine: