Thinkpads Forum

Hey i found a cpu for cheap, its a 1 Intel Celeron 300mhz Slot 1 processor. Is this the cpu i need to upgrade my little lappy?

Checkout the 600 upgrade sticky, but I think you want a MMC-1 package. Isn't slot 1 for a desktop motherboard? You could also try the Intel processor spec finder. http://processorfinder.intel.com/

I recently upgraded my TP600 to a 400mhz CPU. But they are hard to find and expensive. I paid too much, but I bought it before I had a chance to research more.

You can buy a used one from a system pull for very cheap. The 600's came with up to a 300mhz CPU, so if you can find one of those, it will probably be under $20. Just do a search on E-bay. As already stated, it has to be MMC1.

As an example, here is a 300 mhz CPU for $7.99 buy it now:

Link1

And another 300mhz one for $12.99 (used the FRU 10L1230 in search field):

Link2

Here is a refurbished 300mhz cpu for $15:

Link3

Here is the 400mhz one I bought new for $39.99:

Link4

MODERATOR EDIT: Fixed links to allow for better viewing.