Anyone successfully used a quad core i7 in a T420?
Posted: Mon Jul 21, 2014 1:11 pm
I have a Lenovo T420 that I am interested in upgrading the CPU to a Quadcore i7.
I have tried this before with a i7-2820QM but it kept locking up, and it was not attributed to excessive heat. The only way that I was able to get it working was by disabling multi-core support and/or disabling hyper threading in the uEFI/BIOS.
Note: I am well aware of TDP, thermal design power, and I am well aware of the fact that Lenovo officially never offered this CPU for the T420. For the sake of this discussion, please assume that cooling is a complete non-issue.
I am also aware the Lenovo never officially supported a T9300 CPU in my R61e, nor did they ever support SATA II speeds, nor did they ever support any Mini-PCIe card that was not on their whitelist. Yet I have ran a T9300 in both my T61 and my R61e for over three years now with my middleton BIOS. I have spent a great deal of time searching for this before, but was unable to find anything.
Thank you.
I have tried this before with a i7-2820QM but it kept locking up, and it was not attributed to excessive heat. The only way that I was able to get it working was by disabling multi-core support and/or disabling hyper threading in the uEFI/BIOS.
Note: I am well aware of TDP, thermal design power, and I am well aware of the fact that Lenovo officially never offered this CPU for the T420. For the sake of this discussion, please assume that cooling is a complete non-issue.
I am also aware the Lenovo never officially supported a T9300 CPU in my R61e, nor did they ever support SATA II speeds, nor did they ever support any Mini-PCIe card that was not on their whitelist. Yet I have ran a T9300 in both my T61 and my R61e for over three years now with my middleton BIOS. I have spent a great deal of time searching for this before, but was unable to find anything.
Thank you.