my guess is that so much of this is actually based on the CPU IMC and silicone lottery the motherboard makers really can't control it.

G.SKILL Trident Z Royal Series 32GB (2 x 16GB) F4-4800C20D-32GTRG
I can confirm these boot up in XMP 4800 and run without issues on the Z590 Dark

rblaes_99
my guess is that so much of this is actually based on the CPU IMC and silicone lottery the motherboard makers really can't control it.

Exactly! The best the mobo's can do is to make sure the power getting to them is clean, the rest is up to the cpu imc and sticks. With speeds that high, imo, i wouldnt touch xmp at all and make sure its fully disabled cause its just terrible. Id look up a list of sticks with different timings at the same speeds that others, manufacturers, are using commercially too and then input a tick higher timings with the speed you want to run. Your def going to have to run the voltage a tick or two higher with 16gb sticks and running 4 or more of them. Def run them with a 2 command rate cause a 1 will def crash them if thats part of the issue. Ram are finicky creatures and even one timing being off will crash them right out. XMP is so hit or miss and it over volts your sticks etc... Just not good for what you guys are trying to do, but i really hope you guys work it out and get what you want.

RogueMaster
How do we determine what modules are on the sticks? Curious about whether I have the B dies or not.

I think I have the F4-4000C18D-64GTZR sticks (I'm not at home to look, so the model number may be wrong) for the new build.

bdie is only 8Gb (1GB) size chip so maximum of 16GB per module, if your modules are 32GB they can't be bdie.

 
Thaiphoon Burner app will tell you.
http://www.softnology.biz/files.html
 
 

DEJ915
bdie is only 8Gb (1GB) size chip so maximum of 16GB per module, if your modules are 32GB they can't be bdie.

Ah!  I didn't know that. Thanks for the info!

Just to add to this list:
 
G.Skill TridentZ 3600MHz 16-16-16-36 1.35v
P/N: F4-3600C16D-16GTZR
Modules: Samsung B-Die Dual Rank
 
2x16GB. XMP or manually, 3600MHz will not run in gear 1. Highest gear 1 speed is 3466MHz. Currently have settings at 3466MHz 14-14-14-32 1T 1.4v Gear 1.

i just got the 5333mhz kits back from gskill RMA..... still wont run at xmp on the dark.   not as of today at least.  

yea frustrating....  i have spent a ton of money on premium ram kits too......  this has been quite the beta experiment.  

DEJ915
At that speed it may require manual tuning or the CPU memory controller is just not able to run at that speed.

correct....  i think this is exactly why there isn't a QVL for tested ram.   it would be pointless for EVGA to publish this as they have no control over the CPU you ended up with.  

I'm shipping this 5333 kit to you Nereus so you can test.  I did update the dark BIOS today and should probably retest before i send.  

BIGGZxoxo
just received my memory today and can confirm that G.Skill Ripjaws V series 4000hz F4-4000C14D-32GVK works when XMP is enabled, but Gear 1 won't post. It has to be set at Auto for it to work

I don't think I've seen any board/memory work with 11900k's at 4000MHz gear 1.

Nereus

B0baganoosh

BIGGZxoxo
just received my memory today and can confirm that G.Skill Ripjaws V series 4000hz F4-4000C14D-32GVK works when XMP is enabled, but Gear 1 won't post. It has to be set at Auto for it to work

I don't think I've seen any board/memory work with 11900k's at 4000MHz gear 1.

Yup. 3600MHz seems to be about the max for Gear 1. Some people are getting good results by down-clocking 4000MHz ram to 3600MHz Gear 1 and then tightening up the timings.
 

hmmm so am I better off keeping my 3600 or stick with the 4000?

I put the 5333mhz elite kit in the mail heading for Nereus today to test/benchmark on his dark.  It would not run on XMP for me.  

B0baganoosh

rblaes_99
I put the 5333mhz elite kit in the mail heading for Nereus today to test/benchmark on his dark.  It would not run on XMP for me.  

I'd have been happy to test them at 5100 in my FTW if you wanted 

DM me your mailing address and I will send Nereus a shipping label from his house to yours when he is done playing with my Flava-Flav kit.