Older Adaptec cards work (mostly). By now ancient 2, 3 and 5 series work without a hitch (own&tested). 6 works for some (me) and not others (arestavo). 7 just refuses outright to work and I know I'm not the only guy with this problem and 99 board (any vendor). I know that LSI cards work on 99 much better, but I know Adaptec cards and software backwards, I've seen LSI software and there is literally nil chance of me switching (like I said it's not 5$ AIC).
 
It seems that level of incompatibility grows with advancement of UEFI. Adaptec or any other manufacturer does not and will not provide ANY support on X99 chipset - only C6xx are supported. To some extent I'm trying to move away from RAID per se, using now controller mostly as HBA for drive pools. While it's not cheap solution 1GB of cache provide nice bonus over any standard HBA without cache. Still it would be nice to work after you spend bags of cash on it right? Especially when it work flawlessly on all pre-99 chipsets including n680i, darn it! Until 99 chipset I never contacted Adaptec support, I never had any problems. Not once, from my first Fast SCSI AHA-1542 card up to when I switched to 99.

Update!
This time i have updated the Intel Management Engine Firmware, perhaps this new version helps with compatibility of Broadwell-E chips, as someone PM'd me about an E5-2650 v4 not working.
 
Tested on my X99 Micro 2.
-BLCK changes sometimes didn't work!
-No other problems/instabilities were found.
 
If you have a Broadwell-E CPU please try this out and post back results, i'm very interested to try and get Broadwell-E CPUs working, as of now, i class Broadwell-E support as untested, meaning it may or may not work.
 
If you're not attempting to use Broadwell-E, yet are having trouble with memory compatibility (mainly corsair kits), then i recommend you try v1. This is tested and full working/stable, helped my 5820K + Micro 2 run my Corsair LPX at its 3200 Profile - it wouldnt even run 2666 before.
 
I have updated the links in the main post. 
 
Enjoy.

Will this non-EVGA Bios Void the Warranty?

bcavnaugh
Will this non-EVGA Bios Void the Warranty?

I am unsure, it's possible that it might. For FTW/Classified users this isn't so much of an issue since you have dual/triple bioses, however the micro/micro2 don't have that feature so it's a little more risky.
 
My guess is if you broke something while using a non-official bios, then that would not be covered by warranty, however if you had used one in the past, but were currently using an official one at the time of something breaking, and the reason isn't something to do with BIOSes, then I guess it'd be still covered by warranty.
 
I was using the stock official 1.03 bios, and my board appears to have had some kind of power failure. It's very rare for a board to not even attempt to post unless something is catastrophically wrong. I'm thinking it is some kind of power failure as my board did report some wierd voltages at one point yesterday after a couple of hangs on attempting to boot.

As long as you re-flash a stock BIOS when you RMA, you are covered.
 
If you send it back with a modified BIOS and EVGA catches it, then your warranty is void.
 
If you own the X99 Classified, put it on the removable BIOS chip and you won't have anything to worry about.

I'll be sending my board off for RMA shortly, went through the usual with tech support, check cables all that, already did it but tried again anyhow, still nothing.
 
Once it's out the system, im going to try powering it up with no CPU/RAM/GPU to see what happens, i still think somethings failed :/
 
Also decided i'm tearing the watercooling out of this build, now i just need to find a good quiet air cooler, noctua ones are annoyingly out of the question with them overhanging the GPU slot. I'll do a build log of this rebuild probably.

A i7-6800k do not run with your v3-BIOS.
No Boot and Post 61 ... 66.
 
 

No need to use his modded BIOS as official support has been released.

SemTeX-67
A i7-6800k do not run with your v3-BIOS.
No Boot and Post 61 ... 66.
 
 

arestavo
No need to use his modded BIOS as official support has been released.

True, as stated support is included officially.
 
I have updated the microcode of the current bios though (both haswell-e and broadwell-e), which i may update this thread to include (it might help with memory compatibility a little).
I'm having no end of difficulties with pcie device compatibility, mainly with wifi cards using broadcom chipset (intel ones work flawlessly...). Wish i knew how to fix that lol...

Man I literally just order the X99 Classified board yesterday directly from evga and overlooked making sure it can boot from a M.2 NVME drive..... GRRRRRRR   Also this motherboard lacks quite a bit of memory support looks like this package will be getting refused. The asus z170 board I am coming from has over 4 pages of nothing but memory supported list this poor thing has 2.  For a modern motherboard listed as one of the best x99 board I was stupid to assume it had the same features/functions of most of the Asus/MSI boards.