The T420 unfortunately lacked a quad core CPU option, which in my opinion is necessary to run modern applications.
Tl dr: yes you can install a quad, with some caveats. Answer (1 of 4): Worth buying depends on the price you pay to acquire it, but in general, the T420 no. All modules listed are qualified to work in your Lenovo ThinkPad T420. Our goal is to give you confidence when purchasing Lenovo ThinkPad T420 upgrades.
I found a guy that has done this modification I wonder if it is possible to upgrade my current cpu with Intel Core i7-2860QM. I wonder if it is possible to upgrade my current cpu with Intel Core i7-2860QM. Some purchase by original module part number. Ive recently purchased a t420 with nVidia NVS 4200m and intel core i5. You'll almost definitely want to avoid the 2960xm since it carries a 55w TDP. Why are there so many Lenovo ThinkPad T420 upgrade options IT buyers come from all walks of life. Relevant candidates for upgrade include the 2630qm, 2720qm, 2760qm, 2820qm, and the 2860qm. You want to avoid these (not that you're likely to find them for sale by themselves anyway).
Most of the chips also come in BGA form factor, which means it's ball grid array (that is, soldered). I've not seen "ppga" before but the "pga" part likely means "pin grid array," which is your cue to tell it's a socketed chip (same for "fcpga"/flip-chip pin grid array).
Customers who viewed this item also viewed. The pin layout used is the same across all (socketed) PGA chips in this generation, so the socket on the dual and quad 520s are the same. Lenovo Thinkpad T420 - Intel Core i5 2520M 8GB 320GB Windows 10 Professional (Renewed) 4.0 out of 5 stars 489. Even worse if the board has a dGPU (which by itself carries a TDP of somewhere around 14w iirc).Īs for the sockets, yes the 520 had different mobos, but it's not due to the socket. So if you install a quad and peg it at 100% for extended periods of time it'll throttle and/or the machine will shut off to prevent overheating. You can upgrade it, but all the quads in that generation have a TDP of 45 watts whereas the duals have a TDP of 35 watts.