ASUS X99-DELUXE II Motherboard page, CPU Support page, and document download page.

Your E5-2658v3 processor isn't specifically listed on this (or on any other ASUS) motherboard CPU Support page. That doesn't mean it won't work, it only means that ASUS hasn't physically tested this combination so they cannot "officially" promise/confirm proper compatibility. (I've asked about this before and it turns out that ASUS just doesn't have access to every single Intel CPU variant, their tests are limited to the parts they actually have.)

Intel's "Wellsburg" X99 chipset is designed to be fully compatible with all Intel Socket R3 (LGA2011-3) processors:

[*=1]Intel "Haswell-E" Core i7-58xx, i7-59xx (5820K, 5930K, 5960X)
[*=1]Intel "Haswell-EP" Xeon E5-16xx v3 (1603, 1607, 1620, 1630, 1650, 1660, 1680, 1681, 1686, 1691)
[*=1]Intel "Haswell-EP" Xeon E5-26xx v3 (2603, 2608L, 2609, 2618L, 2620, 2622, 2623, 2628, 2628L, 2629, 2630, 2630L, 2637, 2640, 2643, 2648L, 2649, 2650, 2650L, 2652, 2658, 2658A, 2660, 2663, 2666, 2667, 2669, 2670, 2673, 2675, 2676, 2678, 2680, 2683, 2685, 2686, 2687W, 2690, 2692, 2695, 2696, 2697, 2698, 2698A, 2698B, 2699)
[*=1]Intel "Haswell-EP" Xeon E5-46xx v3 (4610, 4620, 4627, 4640, 4648, 4650, 4655, 4660, 4667, 4669)
[*=1]Intel "Broadwell-E" Core i7-68xx, i7-69xx (6800K, 6850K, 6900K, 6950X)
[*=1]Intel "Broadwell-EP" Xeon E5-16xx v4 (1603, 1607, 1620, 1630, 1650, 1660, 1680)
[*=1]Intel "Broadwell-EP" Xeon E5-26xx v4 (2603, 2608L, 2609, 2618L, 2620, 2623, 2630, 2630L, 2627, 2628L, 2640, 2643, 2648L, 2650, 2650L, 2658, 2660, 2667, 2673, 2679, 2680, 2682, 2683, 2686, 2689, 2687W, 2689A, 2690, 2695, 2696, 2697, 2697A, 2698, 2699, 2699A, 2699R)
[*=1]Intel "Broadwell-EP" Xeon E5-46xx v4 (4610, 4620, 4627, 4628L, 4640, 4650, 4655, 4660, 4667, 4669)

The X99 platform targets the "high-end desktop" (HEDT) market. The vast majority of the enthusiasts, overclockers, gamers, and power-users who buy an X99 motherboard will buy a Core i7 processor for it.

Few Xeon E5 processors are available through consumer channels, very few of these Xeon parts are rated for greater clock speeds than their fastest "Extreme" i7-X counterparts, few HEDT users can justify paying high ($$$$) prices for "slower" Xeon processors that are really designed more for multi-core multi-tasking madness than for raw turbo overclocked brag & swag. Enterprise customers invariably pair Xeons with server motherboards/chipsets, they are able to leverage all of Intel's Xeon technologies, massive memory densities, and multi-processor scalability (on dual- and quad-socket mainboards, alongside multiple Phi and workstation cards, etc).

The multiprocessor scalability of E5 26xx/46xx processors obviously cannot be used on single-socket X99 motherboards. X99 also doesn't implement registered and buffered memory circuitry, which limits maximum memory to 4 UDIMMs (which are typically doubled up into 8 DIMM banks, currently able to address a maximum of 128GB on the highest-end X99 mobos). X99 motherboard firmware (BIOS and utilities) are usually not aggressively supported and typically lack native support for a variety of Intel Xeon technologies. Raja once commented in these forums that he provided a modified BIOS to somebody to allow a ROG motherboard to support all 18 cores on a high-end Xeon processor.

Notice that there are two variants of your processor: the Q3/2014 E5-2658-3 (SR1XV/M1) and the Q1/2015 E5-2658A-3 (SR27T), they appear to have identical specs (and prices) but the different part designation probably indicates it's binned from a different silicon die/fab (the newer part being designed to serve as Intel's drop-in replacement for the now-discontinued older part).

I use a Xeon E5-1680-3 on a ROG X99 R5E motherboard. Overclocked to 4.4GHz (on all 8 cores!) with "Turbo Boost Always Enabled" so there's never any clock fluctuations at all. I would call this Xeon "average" in terms of voltages, etc - it can actually OC to 4.6GHz and remain absolutely stable, but I keep it turned down a couple notches so my CPU temps never exceed 55C - it's basically the highest bin from the silicon die used in the i7-5960X, plus (I think) more robust integrated memory controllers.