Quad channel memory issues.

Adamlamb7

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Ok, I have a nerve wracking issue with the BIOS not recognizing the memory in all quad channels on my MOBO. This will be hard top type so bare with me.

CPU: I7-5960x
MOBO: ASUS X99-deluxe
RAM: Kingston Hyperx predators 3000mhz - 8x4gb
OS: Windows 8.1 Pro x64

I just built this computer 2 weeks ago and installed everything correctly. However, when I went into the BIOS only 6 RAM sticks were being recognized. Channel C1 and C2 were not being registered and said "N/A". So I sat down and re-seated the sticks and it still did not work. So, I started from scratch and did as directed in the ASUS manual to install one stick and then go from there all the way up to 8 in the RAM configuration. I got to A2 and C2 as the last 2 sticks and booted the comp and A1 and A2 were not recognized. So I figured maybe one of the sticks was not working. I did some dinking around and tested each RAM stick and found all of them were being recognized in slot D1 as the RAM configuration goes via ASUS manual. No matter which way I do it, one of the channels A - B - C - D will not recognize as a full 8.

At this point I re-seated every stick in all 8 slots and ran CPU-Z, in CPU-Z it recognizes all 32 gb and in the SPD tab it shows each slot having a serial number and running appropriately. Which in turn has made me really confused. Here is the CPU-Z validation http://valid.x86.fr/buns7g

I have gotten as far as having 7 sticks recognize in the BIOS having 28 gb. I can never have 32 gb appear however in the BIOS at all. I have updated the BIOS to the latest version "1601" and even updated 8.1 fully with all updates. My Windows system says I have 24gb or 28 gb when they are recognized in the BIOS as 6 or 7 sticks. I have ran the XMP profile 1 and 2 and still no luck. However, one thing I have not tried is up the voltage in the BIOS in advanced settings. I honestly don't think it will work. I called the retailer and they said they have never heard of that, ASUS is closed today oddly enough was yesterday too because of weather conditions.., I won't have another chance to call until next week because of my schedule.

Is it possible it's a BIOS issue? Is there a free ram checker I can run tests on without having to pay any more than I already have or deal with any adware on a brand new computer?

:??:
 
Solution
That may well be the problem, mixing packages is not a good idea, especially multiple packages. The DRAM in a given package is all tested to play nice together, no guarantees when mixing. This is why the manufacturers offer such a variety of packages (and often the higher stick count packages cost more than their equivalent lower count of stick packages. The higher price comes from the additional testing needed to pair up numerous sticks that will play together. People do this all the time to save a few dollars and end up with problems as you are encountering. You could try exchanging for a full set of 8 sticks if available, or better yet would be a 4x8GB 32GB set, or contact Corsair to see if they might be willing to help somehow.

Neutr1n0

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Are all of the above tests done with XMP profile enabled? Anything above 2666 could require some manual tweaking. Upping the voltage a bit can help, as can tweaking SystemAgent voltage.

Also take note that setting XMP profile on X99 sets more than alone RAM multiplier and voltage. For me it also set strap to 125 and therfore core an cache voltage to 1.200V (in bios still on auto and voltage fixed and independant from CPU multiplier). I would recommend staying on 100 strap for more optimal cpu core voltage. Use adaptive for OCing.
 

Adamlamb7

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Part# for RAM: HX430C15PB2K4/16
CPU Cooler: H110i Corsair
GPU: Vapor-X R9 290 8gb

I have the latest BIOS, the number is "1601". I bought two packages of 4x4gb, they came at the same time in 2 pairs of 4 packages. So 2 ram sticks came in one package, and I received 4 packages of 2.

I bought them here. http://www.amazon.com/gp/product/B00NTQ0FOI/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1
 

Tradesman1

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That may well be the problem, mixing packages is not a good idea, especially multiple packages. The DRAM in a given package is all tested to play nice together, no guarantees when mixing. This is why the manufacturers offer such a variety of packages (and often the higher stick count packages cost more than their equivalent lower count of stick packages. The higher price comes from the additional testing needed to pair up numerous sticks that will play together. People do this all the time to save a few dollars and end up with problems as you are encountering. You could try exchanging for a full set of 8 sticks if available, or better yet would be a 4x8GB 32GB set, or contact Corsair to see if they might be willing to help somehow.
 
Solution

Adamlamb7

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I bet that's exactly what it is. It makes sense to what it seems like is going on, when I run an XMP profile I bet it's trying to run two at once possibly and my computer sometimes won't start and I have to click the CMOS button. Other times the XMP profiles don't even appear. With them having been set for each other I am sure it would make the computers wear and tear faster in some weird way which I do not want with a computer this expensive. This is my baby after all.

I will contact Kingston and get a RMA, and buy a package of 8. I will let you know if this fixes the solution. I just hope it won't take to long to get the new sticks. Thankyou and I will get back with you.
 

Neutr1n0

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Please do ignore me... as mentioned, 3Ghz is tricky to run. 8 sticks rather than 4 is even trickier... I don't think 'paired' kit will help. So did you try to run them with bios default values and do you still have the issue then? If not try running them at 2926Mhz (100 strap x 1.333 x 11). It all has to do with strap and multipliers. Some are inheritly more stable than others.
 

Adamlamb7

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Everything I did for the most part was ran from stock settings, I am not looking to do any overclocking if at all possible. The only reason why I ran the XMP file anyway was because I read so many articles on memory issues and some of them say to run the XMP profile and it might boot start the last stick or two in all eight sockets.

It will all work out anyway just because I have already found a cheap pair of 8x8gb sticks for only a hundred dollars more. I did do what you said, but it didn't work as I presumed it wouldn't. I don't think it's an electrical issue because of how they work in certain channels at times and other times after being moved they do not. In this case it also tells me it's not the processor or MOBO.
 

Neutr1n0

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Hmmm. Still sticking with my point though. If you have the issue at JEDEC speed 2133Mhz and bios at default, this is not because of unmatched sticks. All ddr4 sticks should run that setting with ease...

thinking what else it could be... overtightened screws on the mobo maybe... actually quite strange the issue seems to move around...

lets wait and see with the new ram. Is that 8x8? or 4x8 or 8x4? 4 sticks only are way easier to get stable of course.
 

Tradesman1

Legenda in Aeternum

_______________________

While all sticks should work at the defaults - that doesn't mean they will all work together and ALL DRAM on the mobo DOES have to work together, the sticks are not independent of each other. If what you say were true, then the manufacturers wouldn't bother to sell multi stick packages and spend the time and money it takes to ensure that sticks in a package will play together. Instead tehy would simply sell single sticks and just let users buy as many as they want and rake in higher profits.
 

Adamlamb7

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My main concern with this thread was to get what I paid for. I bought an eight core processor with a Mobo that supports quad channels. If I wanted to use 4 sticks then I would have bought a 4 core PC and only used 4 sticks. I don't see any point in paying all this money to only use 4 sticks for 8 dimm support. I understand however your concern on stability, but honestly the computer should run from default settings with ease or they wouldn't sell the product. After I get what I paid for, in this case all 8 eight slots to recognize the RAM I have installed, then I will play around with voltages while doing some overclocking with the CPU and the GPU. I will take this one step at a time however, or I could potentially cause more damage with a 3k PC than I am worth in a years pay. Lol

I did buy 8x8gb ripjaws 2666mhz for 200 dollars more. It also matches the white case and mobo I have: and the vapor-x 8gb is blue which will look perfect with this blue package of ram. http://www.newegg.com/Product/Product.aspx?Item=N82E16820231831&cm_re=ripjaws_ddr4-_-20-231-831-_-Product

I should get these in tomorrow or Tuesday. I will let you know if this fixes the problem, which I am sure it will.


 

Neutr1n0

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Actually i dont see any point of spending insane amount of money for having 64gb ram unless you want to have a ram drive for some strange reason. 16gb is enough... 32gb is more than enough...

I do agree that it should work at default settings (without XMP profile!). If it's not, and your sticks are working seperately i strongly suspect something else is wrong... something else could be cpu or mobo... I do hope the new sticks will work properly, but i wouldn't be too confident...
 

Adamlamb7

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This fixed my problem, all 8 sticks are being recognized and work perfectly! Thanks Tradesman1!

64gb - FTW!