Jedec Puns

My motherboard is acting weird, it won't load my primary BIOS with all my OC data. That may be another issue, I'm not sure.

I'm on my secondary BIOS now, which will boot with RAM out of XMP. It boots at 2133MHz, 15/15/15/30. My RAM is 4x 16GB 4000MHz19/19/19/39 1.35v XMP. I'm on Ryzen so I don't use XMP, I clock it down to 3600 and tighten the timings. But after cleaning my system the other day it will only boot in non-XMP, non-OC 2133MHz speed.

I have lowered it all the way to 3600 19/19/19/39 @ 1.5v and it will not boot.

Any ideas?

I figure it's either the motherboard, maybe the RAM, or maybe the memory controller on my 5900X? It's weird that cleaning my system caused this to occur though.

I was wondering could I use JEDEC RAM on my XMR motherboard. For example could I use 2666Mhz RAM instead of 2667Mhz RAM that is specified for my board?

For some reason my X570 Master Gigabyte board shows all four sticks at 1.0v, which should be 1.2v. At one point I saw one DIMM show as 1.2v, while the rest were af 1.0v in the BIOS. The system is very unstable, unless I enable XMP, which has the correct voltage of 1.35v. Why does the JEDEC voltages vary like this? Checking CPU-Z it shows the proper values.

The whole system was stable, until I upgraded to a 5900X. Though I don't know if it is the RAM, CPU, or MB.

My bios version currently is f25,Ryzen 5 1400 and two sticks of Hyperx Predator cl12 2400mhz ram made in 2014,this is the part number HX424C12PB2K4/16 chips in it are SkHynix MFR from what i gathered in typhoon burner.

I just cant get this memory to run continously in dual channel with xmp or any kind of overclock no matter what,i did manage it twice completely randomly on f5 bios and on f31 but after a while it would cause instabilty and it would revert to 2133 after booting with 3 quick beeps in a row for two times,memory training failling to achieve the rated speed i guess.

I tried the correct ram slots,tried everything manually,dram calculator,loosening the timings,upping the soc voltage and dram voltage,clearing the cmos everytime etc...you name it but it just doesnt want to work.Also one time i just upped the multiplier to 2666mhz without touching anything and it freaking worked at cl16 though for a few days and again it reverted back.

It baffles me because the XMP worked on f31 bios for a few months so i know it's capable of it but right now it will only work in single channel with XMP enabled and it seems so random,you can never figure out if any step you took actually helped or not.

Is there a one last trick that i missed or is this ram simply incompatible with Ryzen and Gigabyte since it's not on the mobos QVL?

G.SKILL Ripjaws Series 16GB F4-3200C22D-16GRS

Thought I'd share my results for those who are interested in upgrading but not for the extra premium choices. As far as I can tell performance is identical to the stock micron chips. Windows 11, updates, no dell software, 21.10.2 drivers and notebookfan control.

G.SKILL Ripjaws Series 16GB (2 x 8GB) 260-Pin DDR4 SO-DIMM DDR4 3200 (PC4 25600) Laptop Memory Model F4-3200C22D-16GRS - Newegg.com

https://preview.redd.it/bfo4f9xgt0y71.jpg?width=1240&format=pjpg&auto=webp&s=59ab8b379a62aeab7e29a2a322d567d0e5918540

https://preview.redd.it/21x75l1sr0y71.png?width=486&format=png&auto=webp&s=4fb1d18ee98cac7d5b65792a1d065b9fd83028bd

https://preview.redd.it/x15tviger0y71.png?width=1920&format=png&auto=webp&s=2763743768368e4ef900186ff01b9611e193f707

https://preview.redd.it/bolkcvkvh2y71.png?width=1350&format=png&auto=webp&s=7634b3709966b6faddda66a8ff7fc271b571a7dd

DDR5 Memory Spec Meets Extreme Speeds Article By : Anton Shilov

JEDEC published the finalized JESD79-5 DDR5 specification, an industry standard for DRAM. The standard addresses capacity, performance, efficiency, power, and RAS needs of upcoming client and server systems.

JEDEC, a semiconductor engineering organization that sets standards for dynamic random-access memory (DRAM), published the finalized JESD79-5 DDR5 specification last week. The new type of memory doubles per-pin data transfer rate over its predecessor, increases capacity of memory devices by four times, lowers operating voltage, and introduces several methods to improve DRAM reliability at thin nodes — as well as reduces power consumption. JEDEC says that DDR5 SDRAM will be used for upcoming client PCs and servers starting next year.

The evolution of DRAM typically follows the same direction as development of CPUs. Nowadays, microprocessors strive for higher core count, improved per core performance, and greater power efficiency, which sets requirements for system memory. Advanced cores need sufficient memory bandwidth, whereas loads of such cores require high DRAM capacity (and high bandwidth), but there are limitations when it comes to capabilities of memory controllers, signal integrity, as well as power draw. To that end, DDR5 addresses requirements of client and server systems for years to come by evolving DRAM in multiple directions at the same time.

Source: Micron “With several new performance, reliability and power saving modes implemented in its design, DDR5 is ready to support and enable next-generation technologies,” said Desi Rhoden, chairman JC-42 memory committee at JEDEC.

[Download]New approaches to physical verification closure and cloud computing come to the rescue in the EUV era DDR5 brings a vast number of developments, and given all the options for scalability and improvements that the new standard has, it is possible that the new type of memory will live longer than its predecessors due to generally slower technology transitions — which is a good thing for CPU and SoC designers. The formal publication indicates that the development is complete, all parameters are set, and no new features are to be added.

“High-performance computing requires memory that can keep pace with the ever-increasing demands of today’s processors,” said Joe Macri, AMD Compute and Graphics CTO. “With the publication of the DDR5 standard, AMD can better design its products to meet the futu

THEY HAVE A DEFECT IN THEIR ARGUMENTS AND THEY KNOW IT AND SO DOES ANDREW STRABONE AND JASON SHEASBY!!
Please read again. Notice the matter of fact tone from Andrew Strabone and feel proud!!

09/16/2021 email. (5 days ago!)
Deepa,
Thanks for the call today. You asked on the call whether Netlist is willing to agree to Google’s motion to amend to the
extent Google seeks to add intervening rights as a defense.
Before Netlist can agree, the parties need to resolve the issue of Google’s “8-rank” and “16-rank” DIMMs. We believe
they have been accused. You believe they have not been accused. Google filed an intervening rights motion that did not
include these products. It appears that Google is now attempting to avoid this defect by amending its complaint to add
an intervening rights defense beyond what it is its motion for summary judgment. We need to understand Google’s
position on this. Separately, if Google will not provide intervening rights discovery on these products we will need to file
a letter brief with the magistrate. We have discussed this on a live meet and confer already, and so we will prepare a
letter brief.
Thanks,
Andrew

2×8GB or 2×16GB are fine. I want to replace my laptop's cheap ram, but it uses a ryzen cpu so there's no xmp in the bios, only JEDEC will work.

Just wanted everyone to have this link, its about $65 cheaper than you can get on Amazon the only other place with stock, even with the shipping cost from CDW.

This is the ram that works for the 5 pro, legion 5, or legion 7 and all other AMD based laptops that are popular.

https://www.cdw.com/product/hyperx-impact-ddr4-32-gb-2-x-16-gb-so-dimm-260-pin-unbuffered/5031796?pfm=srh

Hi, does anyone know what the system will do if I put JEDEC 3200 memory in a system which supposedly only supports 2933? Will it run at 3200? Or clock to 2933? Or freak out and run at 2133?

The system is Lenovo Legion 5i and the memory is some Kingston FURY 3200mhz (but again it is JEDEC 3200 not just XMP).

Hi, does anyone know if the memory will just override the 2933 maximum and run at 3200 or if it will have some other unintended consequence or just not boot or whatever else?

The memory is Kingston FURY and the system is an Intel Legion 5i. The 3200 kit is a lot cheaper than the 2933 so if this works then great, but I don't know what it will actually do. Anyone else tried it?

Also yes, JEDEC 3200, not just XMP. The ram should default to 3200 regardless, but given the Intel cpu supposedly maxed at 2933 without xmp I am not sure what will happen.

Looking for 2 x 8 GB DDR4 JEDEC RAM 2666, 2933, 3000, 3200 MHz.

Budget is up to $50

I am running this ram (https://www.kingston.com/dataSheets/KSM32ES8_8HD.pdf) with my 1950x machine, unfortunately the JEDEC settings are not auto detected.

Stability is more important to me for this machine, but I dont want to leave peformance on the table if i dont have to.

I wanted to confirm if i set the timings correctly, and is there any risk to running the JEDEC 3200mhz settings for this when the 1950x only officially supports JEDEC 2666mhz.

• DRAM Frequency = 3200
• tCL = 22
• tRCDRD = 22
• tRCDWR = 22
• tRP = 22
• no idea what the tRAS is supposed to be, so left it at auto

Only DRAM Frequency changed 2666 -> 3200

tCL tRCDRD tRCDWR tRP changed to 22

in windows

###Troubleshooting Help:

PCPartPicker Part List

Hi r/buildapc. Having a bit of an odd compatibility issue here. For the longest time I've dealt with instability in this build and I chalked it up to an aggressive CPU overclock. Recently after resetting my BIOS I realized it's not overclock related. Build Images Here

 

I'm testing my memory using OCCT 8.2.3, and even at stock speeds with optimized defaults in the BIOS I bluescreen after a few minutes. Max DIMM Temp 48C

Model Number f

I'm looking for a 32GB(16x2) 3200MHZ Dual Rank JEDEC with like CL16 or CL18. This is for the new Asus laptop (G713QR) but I don't know if that kind of ram exist.