Thinkpads Forum

I have a T61 4:3 with the newer revised MB to fix the heating issues with the Quadra 140 NVDA chipset. What is the fastest CPU I can use? The MB is Middleton flashed, with 8GB RAM and on SSD.

I noticed the T9500 CPU is an option but online I see different code #s for the same CPU. For eg. AliExpress sellers have SLAYX and SLAQH, what is the difference with these codes and what should I be looking for? Date of production, reliability, etc?

The T61 has been used daily since the major MB upgrade swap.

Welcome to the Forum.

Go to the T61 Wiki a few posts above yours, it has all the info you may ever want.
Over the years the best bang for your buck has always been the T9300.

I agree with RBS, T9300 FTW.