F3-19200CL10Q-32GBZHD on ASUS P9X79PRO MOBO BIOS 4302 i7 3970X @3.5GHz CPU ISSUE

[supahos]

Okay that is really strange then, so no single stick will boot at 2133 either? They all only boot at 1333? This generally makes no sense. Was the packaging mangled when you got it? I just can't imagine 4 bad sticks in one package without some sort of terrible handling during shipping, even then it would surprise me. I've used probably close to 30 gskill memory kits in my life with no defective sticks, the odds of 4, in one package has to be practically zero. I would say to RMA the sticks but I think the problem lies elsewhere. Is there any chance you can get fast memory (1866+) from anywhere to try (borrow from friend or something?) just to see what is going on?

[jinlong]

Re: supahos

To my best knowledge, the RAM can run at 1333 stable. It seems to me all sticks are not defective. The only issue is on how to set it work for 1600, 1833, etc. The is why we need X.M.P. If all settings are the same there is no need to define X.M.P. profiles. The default profiles won't work, and it simply means the ASUS QVL doesn't test the specific RAM on each new MOBO. Or, not able to take responsibility to remove some DIMM from the QVL. It takes a great courage. Most managers will not authorize the test engineers to remove any from the list to against its business partners. It suffers the end users, customers. Soon, all will learn it and never give it a second chance.

[jinlong]

RE: I would say to RMA the sticks but I think the problem lies elsewhere. Is there any chance you can get fast memory (1866+) from anywhere to try (borrow from friend or something?) just to see what is going on?

I have Crucial 1333 64GB 8x8 GB. It runs fine, but I just want to release the power of P9X79 PRO, so I bought G.SKILL F3-19200CL10Q-32GBZHD.

I have ordered other RAM, and soon I will find out the issue. Thanks for your help.

[logicmoo]

I think my case is IDENTICAL, but I further exacerbate by trying to put 64GB instead of 32GB. (32GB supported by QVL? 64GB not?.. see below questions)


I just purchased

G.SKILL Ripjaws Z Series 64GB (8 x 8GB) 240-Pin DDR3 SDRAM DDR3 2400 (PC3 19200) Desktop Memory Model F3-19200CL10Q2-64GBZHD

And placed into ASUS P9X79PRO MOBO BIOS 4404 with CPU: i7 4930k

All chips tested bad with XMP profiles. All chips tested fine @ 1333.

My chips are slightly different set of QVL. now I was going to return them for
Two sets of F3-19200CL10Q-32GBZHD.

But this thread has forewarned me that even one set of F3-19200CL10Q-32GBZHD wont work since I am exactly where the original poster is at..
Now, I can not decide if I need to Return the Motherboard or RAM.. Especially if I cant get ANY one of my eight 8GB sticks stable at XMP#1 (2400mhz) or XMP#2 (2399mhz).

STABLE = Boot to windows. (windows 7 version memtest shows errors on each stick) (How did i get windows on there? Put 64GB ram @ 1333 and it installed without a hitch.. btw, cant get 1600mhz to work)

The original poster said he cant get ANY one of his four of his 8GB sticks stable at XMP#1/2400mhz?


See, I bought a RIVE motherboard at first and had to RMA it and the people at Fry's replaced me with a P9X79PRO and assured me they'd test the ram.. Turns out they did not test at anything but the 1333 profile!
They must forgot to run the two SPD profiles ( XMP#1 (2400mhz) or XMP#2 (2399mhz)), since the board fails those tests 100%. Maybe they didn't run it at top SPD since they already had to work around the buggy ASUS Flashback procedure and maybe felt they already earned their 49$.

buggy ASUS Flashback procedure = One Fry's tech said he had a 15 out of 15 failure rate with ASUS boards while updating the BIOS with Flashback.. To ASUS "please sell us a board that does what is claimed" Fry's Tech: "if it cant do it, sell me another. Sounds like you encountered 15 of 15 (100%?) dysfunctional boards?" I caved, and let him update the BIOS by other means, but in hindsight... I should have made the purchase of the board contingent on it's success. but threat was if he did what the manufacture told him, he'd brick the board. (BTW, I am not just *****ing here, I knew he was right)

So my questions are this:

Has *anyone* gotten 32mb or more of G.Skill functional 2400mhz at XMP#1/#2 on a P9X79PRO ?

Does the G.SKILL QVL really say F3-19200CL10Q2-64GBZHD wont work.. yet F3-19200CL10Q2-32GBZHD Will?

Was that just another way of saying this board is UNSTABLE with more than 32GB?

Is there maybe a certain percent of the P9X79PROs with *this* defect? (Should P9X79PRO actually work with this?)
So with enough board RMA's one day will I have one that can do 32GB at XMP#1/2? (Like the G.SKILL Test Engineer that got lucky that day?)

Would further P9X79PRO RMAs maybe allow me to get all 64GB working on XMP#1/2? ( G.SKILL Test Engineer never got this lucky )

Forget the RipjawsZs for a second DOES ANY 32GB or 64GB RAM (even outside of G.SKill) work on this motherboard at 2400mhz?

Should I just hold Fry's to my original build request? ( I re-iterated it 4 times to 4 people - and everyone said yes):

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Me to Sales: "Ok, I will buy the board from you. Heck I'll even buy a case from you so you guys can build it here.. If it doesn't do the 64GB at 2400Mhz, you'll sell me a board that does?"

Sales: "Yes, Here is your receipt. It includes the basic 49$ build.. They'll supply the Loader CPU cooler. "

(Turns out that testing might only be lowest speed setting? ANY one of the 4 people could have told me I need to pay 99$ but everyone assured me the 49$ build would cover this request)
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Me to Service Man #1 (Super cool steampunk guy with great burns): "Ok, I bought the board from you. Please memtest the 64GB at 2400Mhz, you can always switch the board for the Rampage IV (I wish you had more than the openbox one.. but can live with it if you have to)"

Service Man #1: "YES, we do all those tests. We do have to flash the BIOS.. but definitely we'll get you board will work we just dont have an ETA"

(they put on 4404)
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Me to Service Woman: "Ok, I will bought the board from you. Please memtest the 64GB at 2400Mhz. See, this board model seems to have issues .. Too many cases of it fine with 48GB usually but maybe not 64GB.. that is why I am having you guys build it.. so i go home with good board"

Service Woman: "YES, we do all those tests, we have a comprehensive suite of tests we run on it."

(Turns out I went home with a bad board or bad ram.. which?)
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Me to Service Man #2 (Over phone guy with 3 years experience): "OK fine, I agree, you don't need to do flashback. I understand you've been a tech for over 3 years.. and I trust your judgment.. Mainly, besides the bios flash, really why I brought the board for you guys is I want to be sure all 8 sticks run at 2400Mhz (as far as I know that wont require any overclocking , since that is what the memory was sold to run at.)"

Service Man #2: "OK will do.. Yes, we are testing it after we put it together"

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Should I just replace the P9X79PRO with a RIVE (only $100 more) and furgetit? I've only had this machine back from Fry's who gave me the motherboard a few days ago.

[GSKILL TECH]

Has *anyone* gotten 32mb or more of G.Skill functional 2400mhz at XMP#1/#2 on a P9X79PRO ?

Yes, look on the qualified motherboard list, those are the ones that have tested working

Does the G.SKILL QVL really say F3-19200CL10Q2-64GBZHD wont work.. yet F3-19200CL10Q2-32GBZHD Will?

64GB is a lot of stress, so not all motherboards can support DDR3-2400 without a voltage boost.

Was that just another way of saying this board is UNSTABLE with more than 32GB?

Yes, it can be without the proper Voltage boost to stabilise the CPU memory controller.

Is there maybe a certain percent of the P9X79PROs with *this* defect? (Should P9X79PRO actually work with this?)
So with enough board RMA's one day will I have one that can do 32GB at XMP#1/2? (Like the G.SKILL Test Engineer that got lucky that day?)

No, many people have this combination and do not have a problem.

Would further P9X79PRO RMAs maybe allow me to get all 64GB working on XMP#1/2? ( G.SKILL Test Engineer never got this lucky? )

Forget the RipjawsZs for a second DOES ANY 32GB or 64GB RAM (even outside of G.SKill) work on this motherboard at 2400mhz?

[Chino_]

Hey there, logicmoo!

The deciding factor here is your CPU not the motherboard. As you know, the integrated memory controller (IMC) is on the CPU itself. So the quality of your IMC dictates how much RAM your CPU can handle and at what frequency. Some CPUs have a stronger IMC than others. It's just the way it is. That's why they call it the silicon lottery after all you never know if you got a strong one or a weak one.

Believe me, running 64GB is enough stress on your IMC already, much less running those 8 sticks at 2400MHz. So before you go and RMA anything, I'd suggest you lower the frequency to something like 2133MHz and go from there. Most of the new IVB-E that I've seen can do 2133MHz.

[static1]

I have a feeling that Intel 4th and 3rd gen only supports 16GB reliably above 1333Mhz. After all, official max freq supported is only 1600Mhz. So perhaps its no surprise that at max num dimms max freq is only 1333Mhz.

I also can't run G.Skill 32GB ram above 1333mhz on Asus Maximus VI socket 1150.

If you look at mobo manuals for ram qvl, suspiciously most ram is only 16GB. They only have a few sticks at 32GB. Why? Probably because the boards can't really handle more than 2 x 8GB high freq dimms.

I don't want to turn this into AMD vs. Intel but my Amd FXA chipped boards have zero issues with 32GB high freq ram.

[logicmoo]

Does this mean that ASUS was successfully able to test the board P9X79PRO with 64GB ?

Shall I try their suggested volt/timings?

[static1]

Go for it. Personally I don't think they even tested the board with most of those dimms.

My Asus Maximus VI Hero supports 32GB max. Yet in the Asus mobo manual they list dimms in the QVL that are 64GB. LOL. Riddiculous. I have zero faith in these QVL schemes. To be quite blunt, I think they test the dimms but not dimm and board combos. I think they just make assumptions. That is why they end up printing that they tested 64GB of ram in a board that only has 4 slots and only supports 32GB. A joke.

Test and let us know.

[supahos]

I guess technically a 64gb kit will work in a 32 gb mobo so they are right, just not all of the kit lol. There are many people running 64 gb at 2400 so the theory that none of them work isn't accurate. Individual boards/CPUs could fall short but there are too many people running it for it to not be possible. I do wonder however if since that cpu is technically a SB if it has the same Memory Controller as the regular SB processors? It doesn't like 2400 at all, even less so with more than 8 gb. I don't know enough about the 2011 socket processors to answer that for sure.

[emissary42]

My Asus Maximus VI Hero supports 32GB max. Yet in the Asus mobo manual they list dimms in the QVL that are 64GB. LOL. Riddiculous.

Of course they tested only 4 of the 8 module from those kits on a mainboard with just 4 DIMM slots.

[static1]

You can get the manual from here
http://www.asus.com/Motherboards/MAX..._HERO/#support

Look on page 1-13

VENDORS.....PART NO.........................................SIZE
g.skill......... f3-17000cl11q2-64gblzd.........64GB(8 x 8GB)
kingston......khx21c11t3fk8/64x................64GB(8 x 8GB)

They certainly list it wrong then because that implies they tested 8 x 8GB.

Otherwise when they have 32GB (4 x 8GB), how am i supposed to know if that means they tested all 4 dimms or just 1 dimm? The table can only be read one way...

If they tested only 4 dimms and not 8 then it should read
VENDORS.....PART NO.........................................SIZE
g.skill......... f3-17000cl11q2-64gblzd.........32GB(4 x 8GB)
kingston......khx21c11t3fk8/64x................32GB(4 x 8GB)

No, I think the whole QVL table is bs. That's just my opinion of course.

[supahos]

The whole QVL thing is, in fact, bs . Point being they used the kit and it booted the size listed is regarding the kit, not what they used specifically. Implication is in the eye of the beholder. However, Gskill has tested this setup and it is known to be possible, this topic has gotten way off course lol.

[emissary42]

They certainly list it wrong then because that implies they tested 8 x 8GB.

Otherwise when they have 32GB (4 x 8GB), how am i supposed to know if that means they tested all 4 dimms or just 1 dimm? The table can only be read one way...

No, you got it wrong. On the left side, the table lists vendor, part number, size and organization of the kit. On the right side it clearly states, that only two or four dimms were tested on that mainboard (and for any other mainboard with just four memory slots).



A memory QVL might not be hundred percent reliable, but it is not "bs".... unless you don't know how to read it.

[logicmoo]

Hey there, logicmoo!

The deciding factor here is your CPU not the motherboard. As you know, the integrated memory controller (IMC) is on the CPU itself. So the quality of your IMC dictates how much RAM your CPU can handle and at what frequency. Some CPUs have a stronger IMC than others. It's just the way it is. That's why they call it the silicon lottery after all you never know if you got a strong one or a weak one.

What make/model of a CPU is known to operate 64gb ram at 2400mhz? (for example is supposed to be capable of operating the G.SKILL Kit I bought?)

Or is there a tech spec sheet somewhere for CPUs to help make sure I know what I am paying for? (I am asking not to be cheeky.. but really I want to be able to have something that i can point to and say "this is what I bought.. and here are the specs I expect it to perform at and it is operating at them" ) If some said CPU's IMC is going to be able to access 64GB.. Can I get a disclosure from that CPU maker as to what speed?