Gomez99

No it only has support for i7 processors, not Xeon

What made you think that?

Gomez99

Didn't find Xeon on the support list…

They're on the support list.  X58 is a bit complicated, though, and people do sometimes choose the wrong Xeons.  I knew many people who ran W3520's when the X58 came out.  However, a number of the Xeons that came out later required hard mods to the board, as noted above, which could be done by owners or EVGA was willing to do them for members.  Another question that often comes up is whether dual-QPI Xeons will work on X58, and generally they will, although the second link will be disabled.  Conversely, boards like the SR-2 and the SR-X will not work with single-QPI chips, even if Xeons, and that leads to all sorts of fun.
 
And that's all I have for extraneous and unasked for knowledge at this time....

I ran the bloomfield xeon cpu's on a E762 and E758 boards just fine. They wont overclock very well though so unless you already own the xeon I suggest the 960 or higher i7 for that. "as mentioned earlier"  and I used bios 83 so I would suggest flashing it if it hasn't been already if using xeon cpu. as the older bios didn't even support some of the bloomfield and gulftown out of the box. 

Why not? Xeon w3680 is 6 core vs 4 core i7, and they OC higher, over 4gh. So now you judge wort it or not.

Well the thing about the xeons is you can find a good x5650 for under $100 very easy and they will overclock just as well as most 970/980/990x. Granted they aren't as simple to overclock but unless you get a dud you can easy get to 4ghz+. I have not actully seen to many 980/990's that will overclock significantly better then a x5650. They are about even. Even on Hwbot, the top 980x listed under water cooling is 5.6ghz, and the x5650 has a 5.3ghz. Keep in mind that there are ALOT more people running 980x in these benchmarks then x5650 because not every x58 board can even use them. If you also bring into x5660's into the picture, they have a top speed on hwbot of 5.6ghz as well. If you go look at the screen caps, the Xeons are also doing these speeds at a lower voltage. Only real difference between the x5660 and x5650 is the factory clock speed. For everyday overclocking not benching like on hwbot, silicon lottery will impact high large an overclock you can get as oppose to if you have a 980x/x5650. But it can be proven that x5650 TEND to overclock to the same clockspeeds using lower voltages. 
 
Link to 980x on hwbot
 
Link to Xeon on hwbot