Since I can't use Westmere CPUs (I don't wanna mod my board), I was looking at some alternatives from the legacy support website

https://www.evga.com/support/motherboard/legacy/

, but this CPU isn't listed there, and tech support said they can't always test all combinations for compatibility, so I might be better off asking at the forums. So does anyone know if these are compatible?

here is the comparision of the 980x, 990x w3680 and w3690. besides name and speed boost for the "90 chips not much difference at all. 
http://ark.intel.com/compare/52585,47932,52586,47917 all 4 are unlocked 6/12 core 

Necrodestiny

quadlatte

Necrodestiny
Since I can't use Westmere CPUs (I don't wanna mod my board), I was looking at some alternatives from the legacy support website

https://www.evga.com/support/motherboard/legacy/

, but this CPU isn't listed there, and tech support said they can't always test all combinations for compatibility, so I might be better off asking at the forums. So does anyone know if these are compatible?

not much difference between the two, both need the mod to work  
 
you may not need it with a rev2 board.

I'm so confused atm, what does the Rev 2 board has that other Revs don't? I was thinking on getting the w3690 if it didn't need the mod, they are cheap on ebay.

not sure, i picked up my w3680 a few months back for $80 shipped. well worth the work even if you have to mod your board (which is real easy to do)

I have heard that rev2 will work with a xeon, but I can't can't say for sure.
I had a file that had all the EVGA boards that worked, and yes some were ver2.  even 1.2 some were. Txt file, I am still looking for it.
But why not try, for 25 bucks. If it works overclock it to 4ghz or better
http://www.ebay.com/itm/B-Grade-Intel-Xeon-X5660-2-8GHz-3-2GHz-Turbo-12MB-6-4GT-s-SLBV6-LGA1366-CPU-/292112808926?epid=82073339&hash=item440347bbde:g:50oAAOSwKytZEzie
 
Don't want to risk 25$  try this one for 3.99 ( breaks my heart, I bought two of these for 385$ each years ago)
It is an e5620 qyad core xeon, if it works then so will the x56xx or the L56xx and w36xx xeons
 
http://www.ebay.com/itm/I...ae9:g:~CoAAOSwEUtZjfA5