Two 16GB 4266 MHz memory kits in quad channel?

[Tardan]

I was looking to buy two G.Skill 16GB 4266 MHz RGB kits and I was wondering if there were any issues with putting two of them together in quad channel? More specifically, I'll be using them with the new x299 boards coming out soon.

I was just curious because I see that they don't have any 32GB kits of their 4266 MHz memory so I just wanted to know if there was a reason for that.

Any information would be appreciated!

 

[R-T-B]

Shouldn't be, but I hate to speculate about unreleased hardware, honestly...

 

[eidairaman1]

Wait until the platform is out.

 

[cdawall]

Do any of the manufactures have a QVL out for the board you are looking at?

 

[Tardan]

Shouldn't be, but I hate to speculate about unreleased hardware, honestly...

Fair point. Thank you for the information though!

Do any of the manufactures have a QVL out for the board you are looking at?

Don't have a specific board in mind just yet. Looking at ASUS as my board manufacturer though.

I guess a question I should ask is if these kits would work on a x99 or Z270 board? If so I'd assume they'd work on x299 when it does come out.

 

[cdawall]

They wont work at 4266 on X99.

 

[Tardan]

They wont work at 4266 on X99.

Ah I see. Well I guess the only way to find out is to try them when they come out Thanks for all the information!

 

[cadaveca]

I was looking to buy two G.Skill 16GB 4266 MHz RGB kits and I was wondering if there were any issues with putting two of them together in quad channel? More specifically, I'll be using them with the new x299 boards coming out soon.

I was just curious because I see that they don't have any 32GB kits of their 4266 MHz memory so I just wanted to know if there was a reason for that.

Yes, there is a reason. The current memory controller aren't really that capable, and as such, there are no kits to offer functionality no currently available device has.

Also, it is never recommended to combine kits together, because of how memory kits are tested for functionality and how SPD may be programmed for 2 sticks instead of 4, and vice versa.

At the high-end of memory performance, you MUST buy what you want, with exact specifications, or you buy many many kits, and then bin sticks yourself to get the kit you desire. You may need to buy 50 kits before you find four sticks that will work well together... or maybe the first two ktis you get work fine, but chances are, this is not likely. Usually, one stick in a kit is really good, and one, not so much, so the best approach when trying to do such things is to buy four kits, get the best stick out of each kit, and them combine them.

 

[Duality92]

Anything above 3200 on X99 is really, really hard to get stable.

On Z270, anything over 3600 starts to get challenging, but sometimes XMP will work out of the box.

I'm assuming X299 will be similar to Z270 as far as memory goes when using quad channel versus the Z270 dual channel, but this is just guessing from my part and experience.

 

[cadaveca]

I'm assuming X299 will be similar to Z270 as far as memory goes when using quad channel versus the Z270 dual channel, but this is just guessing from my part and experience.

My contractual obligations prevent me from commenting.


Soon though.

 

[Duality92]

My contractual obligations prevent me from commenting.


Soon though.

I'm under the same contractual obligations? 20th? (maybe not exactly, but u'know)

 

[Tardan]

Yes, there is a reason. The current memory controller aren't really that capable, and as such, there are no kits to offer functionality no currently available device has.

Also, it is never recommended to combine kits together, because of how memory kits are tested for functionality and how SPD may be programmed for 2 sticks instead of 4, and vice versa.

At the high-end of memory performance, you MUST buy what you want, with exact specifications, or you buy many many kits, and then bin sticks yourself to get the kit you desire. You may need to buy 50 kits before you find four sticks that will work well together... or maybe the first two ktis you get work fine, but chances are, this is not likely. Usually, one stick in a kit is really good, and one, not so much, so the best approach when trying to do such things is to buy four kits, get the best stick out of each kit, and them combine them.

Wow, thank you for the informative post! Maybe I'm better off buying a slower 32GB kit. but then the question becomes 2x16 or 4x8 kits?

Anything above 3200 on X99 is really, really hard to get stable.

On Z270, anything over 3600 starts to get challenging, but sometimes XMP will work out of the box.

I'm assuming X299 will be similar to Z270 as far as memory goes when using quad channel versus the Z270 dual channel, but this is just guessing from my part and experience.

I think I saw that X299 supports 2666 while Z270 supports 2400 on paper at least. So a little faster memory support, maybe I can pull it off? Thank you for your information though

 

[cadaveca]

I'm under the same contractual obligations? 20th?

1st rule of fight club... but I guess you kind of... trickster.

I want to say something but... arrgh... must... resist....

Resistance is futile. Your date is wrong.

https://www.techpowerup.com/234337/...d-x299-motherboards-release-schedule-detailed

Wow, thank you for the informative post! Maybe I'm better off buying a slower 32GB kit. but then the question becomes 2x16 or 4x8 kits?

I think this choice is predicated by the CPU you end up choosing. BTW, not all X299 support 2666, some are 2400.

It's a short wait though, so... wait?

Form the perspective of an memory overclocker, filling all channels you can is best, and the lower the module density, the easier it is to clock (provided you have the right ICs on the memory sticks).

 

[Duality92]

yeah, X299 is all about "up to"

Up to 44 lanes
Up to 2666
Up to ....

Sent you a PM too cadaveca

 

[Enterprise24]

I have seen some X299 memory result. KBL-X Dual Channel can run up to 4800Mhz. SKL-X Quad Channel can run up to 40XXMhz. I think BIOS update in the future will extended frequency above this.

 

[Tardan]

I have seen some X299 memory result. KBL-X Dual Channel can run up to 4800Mhz. SKL-X Quad Channel can run up to 40XXMhz. I think BIOS update in the future will extended frequency above this.

Oh that's good to hear! I could try some 4000 kits if 4266 doesn't work out. Thanks for the information.