I've been using this board for a few months and haven't done too much overclocking, just a quick 4ghz (Uncore stock) with my 5930k and 16gb Corsair (The best Hynix IC's) and DDR4 @ 3200 15-15-15-35-1T-1.4v. Nothing major.

Today I noticed while getting into Uncore & RAM overclocking, this board has some major flaws that I feel should be addressed. I can replicate every single issue I am about explain. I can and will make an HD video of this if someone from EVGA would like me to do so.
 
When setting Uncore in BIOS to 40x then changing any of the individual CPU multipliers, the Uncore reverts back to 3000mhz. The board also exhibits this behavior with the multi at 40x with all the CPU multi's set and pressing enter on the Uncore set at 40x. It will go back and forth from 3000mhz to 4000mhz.

Here are the issues:
 
1. Uncore cannot be overclocked past 36x. Intel XTU will allow 1 further adjustment, only 1x however (The Uncore multi also has to be set 1x higher than your CPU multi for it go up at all, I did this with a 40x CPU multi and a 41x Uncore multi. This resulted in 37x Uncore). Anything past this crashes no matter what RING voltage.
 
2. There is no 1:28 RAM multiplier. Noticed this while overclocking RAM. The RAM I use is very versatile, so when trying to get a handle on certain BCLK/FSB combos I noticed there was no 1:28 multi.
 
3. PCI-E 1.0 1x devices to not work unless you set them from Auto to Gen 1 or Gen 2, I used Gen 1 and a Sound Blaster ZxR (Not sure if this affects all PCI-E 1x devices).
 
4. When the above scenario is in play & Gen 1 or 2 for PCI-E 1x add in card has been set, the PCI-E 3.0 16x link used by the GPU randomly links at 8x instead of 16x upon bootup (can be confirmed by entering BIOS, Windows also confirms this)
 
5. When setting Uncore in BIOS to 40x then changing any of the individual CPU multipliers, the Uncore reverts back to 3000mhz. The board also exhibits this behavior with the multi at 40x with all the CPU multi's set and pressing enter on the Uncore set at 40x. It will go back and forth from 3000mhz to 4000mhz.


 
So. I believe those 5 issues are quite serious. I personally haven't found any other issues that are specific to this board, however these definitely need attention IMO. I have ranked them in order of (what I think) severity as well. #5, from what I can tell, does not affect functionality. I do not think when the malfunction happens & the Uncore is actually being set to 3000mhz. I believe it only looks as if it's set to 3000mhz.


 
I hope this is taken seriously. I could live with the fact that every Asus board with their "OC Socket" could clock their Uncores higher than us without a doubt. But BIOS Limited to 36x?
 
Why? Was this intentional?

I was under the impression that the Classified brand was your best offering. I have used other X99 board (3 to be exact) & they have not exhibited issues like this one has. I've never seen legitimate findings ignored on this forum anyway. So. EVGA, I await your response. 

Thanks!
 
Ty

*edit*

Wanted to mention the hardware in my sig is current and in use for anyone wondering what my config consists of (Getting that SM951 was not easy).

nexxusty
I've been using this board for a few months and haven't done too much overclocking, just a quick 4ghz (Uncore stock) with my 5930k and 16gb Corsair (The best Hynix IC's) and DDR4 @ 3200 15-15-15-35-1T-1.4v. Nothing major.

Today I noticed while getting into Uncore & RAM overclocking, this board has some major flaws that I feel should be addressed. I can replicate every single issue I am about explain. I can and will make an HD video of this if someone from EVGA would like me to do so.
 
When setting Uncore in BIOS to 40x then changing any of the individual CPU multipliers, the Uncore reverts back to 3000mhz. The board also exhibits this behavior with the multi at 40x with all the CPU multi's set and pressing enter on the Uncore set at 40x. It will go back and forth from 3000mhz to 4000mhz.

Here are the issues:
 
1. Uncore cannot be overclocked past 36x. Intel XTU will allow 1 further adjustment, only 1x however (The Uncore multi also has to be set 1x higher than your CPU multi for it go up at all, I did this with a 40x CPU multi and a 41x Uncore multi. This resulted in 37x Uncore). Anything past this crashes no matter what RING voltage.
 
2. There is no 1:28 RAM multiplier. Noticed this while overclocking RAM. The RAM I use is very versatile, so when trying to get a handle on certain BCLK/FSB combos I noticed there was no 1:28 multi.
 
3. PCI-E 1.0 1x devices to not work unless you set them from Auto to Gen 1 or Gen 2, I used Gen 1 and a Sound Blaster ZxR (Not sure if this affects all PCI-E 1x devices).
 
4. When the above scenario is in play & Gen 1 or 2 for PCI-E 1x add in card has been set, the PCI-E 3.0 16x link used by the GPU randomly links at 8x instead of 16x upon bootup (can be confirmed by entering BIOS, Windows also confirms this)
 
5. When setting Uncore in BIOS to 40x then changing any of the individual CPU multipliers, the Uncore reverts back to 3000mhz. The board also exhibits this behavior with the multi at 40x with all the CPU multi's set and pressing enter on the Uncore set at 40x. It will go back and forth from 3000mhz to 4000mhz.


 
So. I believe those 5 issues are quite serious. I personally haven't found any other issues that are specific to this board, however these definitely need attention IMO. I have ranked them in order of (what I think) severity as well. #5, from what I can tell, does not affect functionality. I do not think when the malfunction happens & the Uncore is actually being set to 3000mhz. I believe it only looks as if it's set to 3000mhz.


 
I hope this is taken seriously. I could live with the fact that every Asus board with their "OC Socket" could clock their Uncores higher than us without a doubt. But BIOS Limited to 36x?
 
Why? Was this intentional?

I was under the impression that the Classified brand was your best offering. I have used other X99 board (3 to be exact) & they have not exhibited issues like this one has. I've never seen legitimate findings ignored on this forum anyway. So. EVGA, I await your response. 

Thanks!
 
Ty

*edit*

Wanted to mention the hardware in my sig is current and in use for anyone wondering what my config consists of (Getting that SM951 was not easy).

 
this is all good feedback.  I've noticed hard boot lockups requiring CMOS clears with changing uncore and ring ratio to anything other than auto.  I wonder if this is the proper forum or if there is an official way to report bugs to EVGA? 
 
 

Sorry to hear about all your problems too! So far I have not had any problems with mine.
 
"I was under the impression that the Classified brand was your best offering. I have used other X99 board (3 to be exact) & they have not exhibited issues like this one has. I've never seen legitimate findings ignored on this forum anyway. So. EVGA, I await your response."
 
Can you Please give us some details on each of the other 3 X99 that you have used and tested on?

My uncore no work over 36x...have a limit for this, I set over 36x and need to clear cosmos

Same goes for me,  Uncore Clocking cant be done,,  Can gett it upp to 3.7ghz  Sett Ring Voltage to 1.350 Just to know that i have Enough Voltage,   go to 3.8, NO BOOT have to Clear CMOS, And I want to Know how much the System Agent Voltage is running at, Not just som offset, Without knowing the Voltage of it

Hope there is a New Bios versjon coming out soon,  The system feels very Unstable With  the issue of Uncore GHZ,

I surely hope a new bios will solve my RAID controller issues on PCIe 6 :/
Any report of USB issues ? My RAID card began working when I plugged my USB peripherals only on USB3 ports :s

cateno
hello
 
need  oc socket on the version 2

Intel is still upset with ASUS for doing that on their X99 Boards.

cateno
hello
 
asrock and  msi  put new motherboard  with  oc socket and  usb3.1 on board why not EVGA ?
 

Maybe we will see a updated EVGA x99 at computex this next week....I hope they show off a possible EVGA x99 Dark w/ a OC socket :)

i have found on all my problems i have had to this point have been handled fast and fixed by evga techs and for the things they dont do they help u get to someone here that does.and if u have something go bad they call it that way faster than u will and replace it . all about rep. and the brand. still building mine . long slow build do to chash flow lol but whin i got my ram they sent me a new bois chip just so i wouldn't have any problem bring my system up . seee mb was from first ones out pre order that was how far  back my bois was lol so was not going to boot with 8 4g sticks of 3000m ram . so if they know u have a problem they fix it for u befor u know it . just ask and give them a little time and it will all be good :0). all so found tha bcavnaugh will go out of his or her way to help you if u ask . been very big help for me sofar. my spelling and gramer suck sorry

LeMakisar
Hello again

Here are some pics from the weird menu I can access only when plugging my adaptec 6805 ...
http://lewebisar.free.fr/...mp/20150529_214534.jpg
http://lewebisar.free.fr/...mp/20150529_220245.jpg
http://lewebisar.free.fr/...mp/20150529_215116.jpg

Is your Adaptec 6805 Firmware up to date?

cateno
hello  just some part of my EVGA product  not all sorry
 
 
 
 
 
my name user is street mobo
and in this forum sorry is in french  my friend make a test from my all part , I not have some time to make test for my all computer part I'm a  collector guy
http://forum.hardware.fr/hfr/OverclockingCoolingModding/CPU/classified-maximus-extreme-sujet_280122_1.htm
http://forum.hardware.fr/hfr/OverclockingCoolingModding/CPU/haswell-5960x-5930k-sujet_282328_1.htm
http://forum.hardware.fr/hfr/OverclockingCoolingModding/CPU/asrock-extreme-club-sujet_277776_1.htm
http://forum.hardware.fr/hfr/OverclockingCoolingModding/CPU/evga-gigabyte-asus-sujet_281862_1.htm
http://forum.hardware.fr/hfr/OverclockingCoolingModding/CPU/evga-dark-discussions-sujet_280331_1.htm
and all part not listed  in my signature  I have  a lot of computer  started my collection at 1985
cubieboard raspeberry pi banana pi orange pi  and this  minicard computer have a  place in my collection
 

You really need to DELETE YOUR IMAGE WITH SERIAL NUMBERS
Or Cut them out of your images.
 
Not sure what you are asking about in reference to the X99 Classified Motherboard?
 
cateno I will also PM you about your Serial Numbers.