You already know that the upgrade processor must be socket, chipset, and bios compatible.
To determine BIOS compatibility, you must ask Lenovo what (IvyBridge) processors are compatible with their BIOS. Then, you can select from them.
Here you can compare the THREE processors. Yes, three. And, none of them use LGA1155.
Whatever the case, contact Lenovo.
Thank you for your attention and answer, sir. I'll try to contact Lenovo.
and about 4 sandybridge motherboard that support Ivybridge processor apparently it was an outdated information, i just realized that after i'm doing more research, and here the source
and it said:
"7. Compatible with Sandy Bridge. Intel has, not entirely unjustifiably, earned a reputation of forcing people to upgrade their motherboards to run almost every new processor line on the market. But that's not the case with Ivy Bridge CPUs: Because they also use the LGA1155 socket, you can put one in a Sandy Bridge motherboard and still have it work - all you'll need to do is update your firmware, BIOS, and video drivers. Only four motherboards using the 6 Series chipsets support Ivy Bridge (H61, H67, P67, and Z68), but if your computer already uses one of those you already have everything you need."
or perhaps i'm the one who misinterpret this information, due to my bad english.
Thank you so much for helping me, now i can narrowing my search to Lenovo Community Forum or similar to find my need.
No, you are reading it correctly. It is just that the processors you are using are not for 1155. And, the information from PCMAG is incorrect. If the motherboard BIOS does not support the upgrade processor, you could have problems. They failed to mention that. Look at the second paragraph in the first link I provided.