Intel CPUs Compactibility of LGAs

[njabs]

Can someone please explain the compactibility of intel LGA sockets and explain which CPU are compactible with each other. For example 2nd and 3rd generation CPUs use the same mobos. Is the 5th and 6th gen cpus compactible?

 

[DSzymborski]

Can someone please explain the compactibility of intel LGA sockets and explain which CPU are compactible with each other. For example 2nd and 3rd generation CPUs use the same mobos. Is the 5th and 6th gen cpus compactible?

5th generation is Broadwell, which never really was a significant consumer CPU. Skylake CPUs (6th) generally run on Kaby Lake (7th) chipsets after a BIOS update. Both are incompatible with motherboards that run Coffee Lake (8th) despite the same socket size.

 

[njabs]

Can someone please explain the compactibility of intel LGA sockets and explain which CPU are compactible with each other. For example 2nd and 3rd generation CPUs use the same mobos. Is the 5th and 6th gen cpus compactible?

5th generation is Broadwell, which never really was a significant consumer CPU. Skylake CPUs (6th) generally run on Kaby Lake (7th) chipsets after a BIOS update. Both are incompatible with motherboards that run Coffee Lake (8th) despite the same socket size.

 

[njabs]

I understand what you are saying but I need a breakdown of which CPUs are compatible with each other. Like the 2nd and 3rd gen CPUs. reason for asking is because at work there is a lot of broken PCs and I need to build 2 pcs frrom.

 

[SkyNetRising]

Can someone please explain the compactibility of intel LGA sockets and explain which CPU are compactible with each other. For example 2nd and 3rd generation CPUs use the same mobos. Is the 5th and 6th gen cpus compactible?

2nd and 3rd gen Intel core cpus work on 6, 7series chipsets (3rd gen on 6series requires bios update).
4th gen Intel core cpus work on 8, 9series chipsets.
5th gen Intel core cpus work on 9series chipsets (not sure about compatibility with 8series chipsets, usually not supported).
5th and 6th gen Intel core cpus are not cross compatible.
6th and 7th gen Intel core cpus work on 10,20series chipsets (7th gen on 10series requires bios update).

 

[mdd1963]

6th and 7th gen are DDR4, socket 1151, and require 100/200 series boards...; anything older than that is DDR3 at best, and pre-socket 1151.

I'd really not be investing in the older DDR3 based rigs unless it's a true steal at $150 with CPU/RAM/MB or something; many 4rth gen i7-4770/4790K models are still kicking it to this date!