Dell Optiplex 7010 & Xeon

[Woadray]

Hey,
Sorry to revive old post, if it's forbidden I will create a new one, I'm new. After hours of research I found this thread so I hope you guys can help me. So I just got a dell optiplex 7010 with an i5 3470, wanting more Cpu power i want to upgrade my Cpu to a xeon of the same socket but I'm not sure of the compatibility or if i actually don't a modded bios. I was looking at the Xeon E3-1240 v2 or the Intel Xeon E3-1280 v2. I haven't bought any of them yet as I want to be sure before doing so. Here are my CpuZ screenshot:
https://imgur.com/56484ar
https://imgur.com/mQeFIDd
Thanks in advance.

[DeathBringer]

I think all CPUs for LGA1155 can work in this system.

[Woadray]

I think all CPUs for LGA1155 can work in this system.

Well, thank you very much then, I'll buy one of those and will tell you how it goes.