squall-leonhart
Most x299 vendors are selling their boards with a nVidia SLI (Certified) logo on the box and in advertising media,
 
It has recently been found however, that few (if any) of these mobo's have actually yet passed certification, and nvidia have copped the brunt of a performance controversy for low scaling on a platform that wasn't ready for market.
 
Would EVGA like to comment on why they have gone to market touting certification that isn't completed?

Naturally, I have to ask  where has it been 'found out that few if any of these boards...'. Doesn't Nvidia still require boards be submitted for certification?
Edit...just thought I'd add I am aware of the widespread and ongoing issues with SLI on this platform. Sure is a curiosity it hasn't been fixed or more details on the precise problem(s) given.
 

Manuel G has in fact stated this in the official nvidia forums. Though he was himself adding to the confusion by stating a new bios could solve the problem while I and also Raja discussed this issue and are undoubtedly sure it's a nvidia driver issue. Since older drivers are actually giving much better SLI performance.

Wow as much as I like nvidia cards for their performance. nvidia as a company doesn't give a... you know what about their customers. It's all business. Recently when enabling 3x performance on their Titan xp cards that was always there just artificially limited in the drivers just because AMDs compute performance was much better on VEGA and now they "restore" SLI that was probably artificially crippled in the latest drivers, because mobo manufacturers didn't pay the certification fee in time ;) yeah nice one. Hope AMD swings in strong with VEGA so we get some more hidden driver switches flicked.

Maybe it is time to Hold Any Release of Any Hardware for at Least One Year After they have been Made to Complete All the Ins and Outs of New Technologies and just Call It Last Years Technology and Drop New Technology 

I believe I read that this issue is fixed in the newest drivers. 
The issue was an Nvidia issue with the SLI certification for x299.

valzero
I can confirm this is a problem. New driver is meh.

Meh is rather underwhelming as a description. What do you have to compare it with? I'm genuinely curious as I may go SLI myself..but on X99.

I'm  running 4/way sli titan x (Pascal's) on my x99 classified MB also with no problem and some insane numbers ounces you unlock 3 and 4 way. it is easily done. just 2 fill that have to be enabled.  but for it to work you have to have 4/way MB and have to have 4/way v2 bridge . and with the drak coming out and evga coming back out with the v2 . leads me to think NVidia is going to unlock it again do to amd. I was about to drop about 10k on a amd 4/way reg. I think I will wate and see if i'm wright.if I am thjey come out with new cards that have 4/way and ares wont lol but I can tell you how to fix it. but I think I want to build a 18 core and a drak with my 4 titians .