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FEATURED Crucial 4x8GB DDR4-2133 CL15 1.2V - CT4K8G4DFD8213

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Today I have to show probably the cheapest ( but not the worst as you will find out later ) DDR4 memory available on our market - Crucial DDR4-2133 CL15 1.2V. In this thread will be presented four 8GB memory sticks marked as CT8G4DFD8213. Exactly the same memory can be found as 4x8GB kit under the CT4K8G4DFD8213 product number.

Right now 4x8GB kit cost about $408 on the Newegg what is at least $50 cheaper than any other 32GB kit that I found:
http://www.newegg.com/global/pl/Pro...861&cm_re=crucial_ddr4-_-20-148-861-_-Product

It's also the first DDR4 memory that we could see on stock in the online stores.

Full review ( without some overclocking results that you can find in this thread ) can be found here -> http://funkykit.com/89-reviews/memory/1380-crucial-32gb-ddr4-2133-cl15-memory-kit-review

If you can't see what is on the screenshots ( too small to read ) then please open picture in a new tab/window.

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Crucial used Micron D9RGQ IC

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Memory is standard desktop version without heatsinks. We also won't find XMP profiles so there is only one SPD profile which is running at 2133 15-15-15 1.2V. All motherboards shouldn't have any problems with this profile.

SPD: 2133 15-15-15-36 2N 1.20V

View attachment 153674

AIDA64 has some problems to read memory speed at other strap than 100MHz so as you see at 127MHz bclk it's already showing 3800 memory clock what is impossible. In this case look at CPU-Z memory tab.

Test results and overclocking

2400 13-13-13-30 1N 1.35V


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2666 14-14-14-32 1N 1.35V


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2666 12-13-13-30 1N 1.50V

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2800 12-13-13-32 1N 1.50V

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2800 12-11-12-28 1N 1.50V

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3000 14-13-13-34 2N 1.50V

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I have to check tighter timings some more as 3000 14-12-12-32 1.50V is booting but is crashing in the middle of HyperPi 32M.

Maximum clock for now 1572MHz ( DDR4-3144 ) CL17 -> http://valid.canardpc.com/wz5twm I think I can make it run higher but I'm not sure if on my motherboard.


I have an ADATA Flame 1x8GB DDR4 2133MHZ 15-15-15-36 with heat dissipator, I have just tried to overclock it at 2735MHZ 15-17-17-35 and 1.236V, should I try a better one?

My motherboard is a Gigabyte Z170M-D3H DDR4.
 
I don't know what memory IC is in ADATA memory so can't say much. For sure you can set voltage at 1.35V as it's safe with all IC and let to OC higher. Can also try 3000 or 3200 at auto timings and if it boots then try to adjust them manually to something tighter. Check 15-15-15, 15-16-16, 15-17-17 and 16-18-18.
 
Yesterday I've tried, but every time I set the clock to 2800+ it doesn't boot, I will try to put it in auto timings. Thanks.
 
I don't know what memory IC is in ADATA memory so can't say much. For sure you can set voltage at 1.35V as it's safe with all IC and let to OC higher. Can also try 3000 or 3200 at auto timings and if it boots then try to adjust them manually to something tighter. Check 15-15-15, 15-16-16, 15-17-17 and 16-18-18.[/

When I set a higher clock than 2800MHz or an higher voltage than 1.300V it just crashes, so I just tried to get timing tighter at 2735MHZ and I get 15-16-16-35, I tried all of these configs and none of them initialized. Sad
 
Maybe it's just motherboard, hard to say. I guess you can live with 2735. In daily work it's not big difference ( if you can see it at all ).

@luyuan20
Looks like these new Micron chips are better for OC. SODIMM that I'm testing in last weeks are amazing and let me to set 4000 on X299 motherboard. I remember that most earlier Microns couldn't run much above 3000. The best full size DDR4 which I was testing could run at 3200 but it was nearly a year ago. Now we have new chips which are specified about the same but OC better.
 
@Woomack @luyuan20

Hi, i have been watching this forum for a while and now that i finally start to build my ryzen Pc the prices of ram are ridiculous. I am in canada so the price of gskill trident z rgb 3000Mhz Cl16 is around $250. I found a similar although quite different set of crucial ram for $180, unfortunately dual rank. The first pair had a machine memory BSOD even on stock cpu settings testing with the AIDA 64 stress test using memory. i RMA'd the first kit thinking the memory might just be dead and just received the second kit. Here are some pictures:



https://drive.google.com/open?id=1-axGoBR1Hg9D50lPZUxSwrRePRwJxH4M

As a general indicator, i do know that the latency is Cl17 and it is dual rank which means it might be much worse that the other ram in this forum.
the modules are also different as they are micron 72H77 C9BHT

Are there any good free Ram testing utilities i should try test this ram with?

My system is a Ryzen 7 1700. stock settings + wraith cooler.
Asus X370F Strix
Crucial CT2K8G4DFD824A Ram


Thank you.
 
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I had some luck with something similar but on X299 and it was SODIMM memory ;) ... still it was overclocking high. I guess you won't know for sure till you try it but new BIOS/AGESA is helping a lot and at least on ASRock motherboard I had no issues with dual rank memory at 3200. Now sure how your memory will overclock. I would check at CL16-16-16, 18-18-18 and 20-20-20 1.35-1.45V and SOC +0.1V. On Ryzen it doesn't matter much if timings are really tight or not so you won't see special difference between CL16 and 18. Again, you have to check it on your own.

Generally AIDA64 will give you stability test and good benchmark. Don't need much more but you can check other benchmarks to compare results. Something like Geekbench 3/4 has couple of memory tests that will show differences in performance between settings .. and is free.

Funny is that Micron IC is marked as D9xxx while these chips on Crucial RAM are marked as C9xxx ( C9BHT ) and there is no info in the web about them. In SODIMM I had C9BHF and it passed DDR4-4000 mark http://www.overclockers.com/forums/...port-LT-4x8GB-DDR4-2666-SODIMM-BLS8G4S26BFSDK
 
Awesome the BIOS update was really helpful, I was able to achieve 3200Mhz at 1.355V and 3000Mhz at 1.35V after updating the bios to version 3803, ran aida 64 for 2 hours, picture to follow.
Before the Agesa update don't remember which version, but i could only get 2666Mhz at 1.35.

Something to note, before the update, the "auto" ram voltage was 1.2, after the update, it was 1.35 stock

Just Noticed that they rolled out a new update Version 3807 5 days ago, not sure if that would improve the ram clocks, but i am maxing out at 3.75Ghz 1.3 V for Cpu (r7 1700), so maybe that will get me to the 3.9Ghz mark.

Was looking at getting another set of this ram to see how 32gbs would work, but the price jumped to 240$
 
If it's working the way you like I would stick with what you have. The new BIOS is most likely for upcoming pinnacle ridge Ryzen refresh and isn't liely to give you much if any improvement over your current settings.
 
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