Hello all,

I have a special issue with my RAM. When I bought it and installed it I went in the BIOS to set the XMP profile #1. Everything was working fine so I began to play with the overcloking on the CPU only. At one point trying to get my 4790K to 5.0ghz my PC didn't want to boot. I reset the CMOS and went back to set back my XMP profile. At that point, I was not able to load windows at all. BSOD over and over. I tought I've screw Windows up so I said to myself to reinstall windows cause it was already a fresh install (all updates done). I insert my Windows Cd to boot on it but... BSOD while loading the install. I was afraid that it was my SSD the problem but even when I tried on my HDD I was getting those BSOD again and again. I've restored CMOS once again and didn'T change the XMP profile this time and my windows booted like a new on my SSD without having to reinstall. From now on I can get up to 2400mhz with my ram by clocking it automaticly but when I tried 2600mhz I get those BSOD again.The XMP profile won't work at all anymore. My RAM is ADATA XPG V2 16gb (8x2) 2600mhz. I did check the ram with memtest and it passes everything execpt while on XMP profile. It doesn't pass 1 test. How can I be sure that it'S really a RAM problem and not the motherboard itself. I've asked around and no one can really tell me if it's the RAM or the board. I just don'T want to send it for and RMA cause they will make some test and if the test passes on their side I will now know that it's my MoBo that is defect. I do not have any friends having a motherboard that can't test it on XMP profile on their system.

EVGA Z97 Classified
I7 4790K 4.0/4.4ghz
Cooler master Nepton 240M
16gb ADATA XPG V2 2600mhz
EVGA GTX 780 TI Classified
EVGA P2 1000W
Samsung 840 EVO 250gb
Seagate Constellation ES 500gb x2
Thermaltake Core V71 Full Tower

I was able to test my Ram on an Asus Z97-A with the XMP profile and everything was working fine. I will go try to set the VSA, VIO-D and VIO-A at 0.100 and will add up gradualy if it still doesn't work. What bugs me the most is that on first boot of my new RIG everything was working fine with the XMP profile. Now I cannot use it at all. Hope playing with the voltage will fix this issue. Maybe it's just a compatibility of this RAM of the Z97 Classified board. Maybe EVGA will bring a new BIOS update that will take charge my ram eventually.

AKToronto, I just wanna say thanks. I went playing with those CPU voltage and now my ram is detected while on XMP profile. REally happy to see that it's not an hardware problem but just some fine tuning on the MoBo itself. I'm not really use to play with those voltage and I didn'T want to screw anything around. Now it works like a charm and all because of you. THANK YOU VERY MUCH. 

Have you tried using an override on cache (RING) voltage? Its not as important as those other voltages, but I have heard it can help... Ive set mine at a 1.24 override and its worked well.
 
I would be surprised if the mobo couldn't handle those speeds.... Its supposed to be an overclocking board... But yes, things can get finicky at high overclocks.... Good luck!

I believe JacobF is running the same ram. PM him I am sure he could help.

Got it, I sent him a message.

No It's at stock speed. I've been ableto boot windows with a lot of manual setting with the ram but extremely unstable. computer will make a BSOD afater about an hour on desktop while doing nothing. Primes 95 and AIDA64 fail after seconds or BSOD. Games will run for 5 to 10 minutes and crash after. It's like I just can't handle this speed at all. I've made a RMA on the CPU cause eveyone tells me that it'S due to a weak IMC. ill let you know when ill get a replacement (if Intel sends me one) if that was the problem bur for now im running at 2200mhz with this timing: 9-11-11-29 1N.
I pass all test without problem. I would really appreciate if someone runs the same run on this board to send me print screen of the settings they have with a 4790K. If possible of course.

ill give it a shot. ill let you know if it works or not. i was more playing with the VSA, IOA and IOD. Without any luck. So tired of this problem at this point... Hope it's gonna work.

On my side XMP#2 is not supported. It's blank. Thx for the advice. Wish it was that simple bot not :P.

Max, call EVGA tech support while on your computer. You get to talk with a live person and don't have wait two hours. I am sure they will help you figure this out quickly.

I just got a replacement for my I7 4790K cause I was pretty sure it was an IMC problem. Now im able to boot to windows but can'T run prime95 or AIDA64 without crashing in seconds. I really need to have the correct voltage for the VSA, IOD and IOA. If someone have this board and running memory at 2666mhz  i would really appreciate if you can send those inputs in your BIOS. 
Thx in advance.

Is this the ram (G.skill F3-2666C11Q-16GTXD) you are running? if it is you are not overclocking the ram. 2666 is stock clock. What slots are you inserting the ram into? You should be using 1 and 3 or 2 and 4. This ram is compatible with the EVGA Z97 Classified board. Make sure you are in the right slots. In the bios go to Memory, set the memory profile to XMP1. Exit and go back in the bios and at the top (see attached photo) make sure the ram shows the correct speed of 2666 and voltage of 1.65. than exit and boot in to windows. If you decide to overclock your memory past 2666. You may have to overclock the CPU as well to make the system stable. Give it a try and let us know of this works.

If you are using all the slots that's ok. What happens when you set just the XMP profile to 1 and try booting into windows not changing anything else?

Can you attach a screen shot of the bios memory settings.

Did you attach the file? I do not see the picture.