AMD Ryzen has issues with high frequency RAM! - Fix will come in 1-2 months

[WereCat]

Just now, zMeul said:

so what, does that makes it right? 

Of course not.

But it is not such a big deal as you make it seem by mocking people that pre-ordered it.

[zMeul]

8 minutes ago, WereCat said:

But it is not such a big deal as you make it seem by mocking people that pre-ordered it.

I was mocking people that pre-order way before Zen pre-orders went open 

[cj09beira]

4 hours ago, Enderman said:

2400 is like, minimum for ddr4....

Almost all DDR4 is 2400 and above.

but it will only afect 4 dim users :-| how many of those there are with the current ddr4 prices

[Enderman]

3 minutes ago, cj09beira said:

but it will only afect 4 dim users :-| how many of those there are with the current ddr4 prices

A lot more than you think.

DDR4 is getting cheaper.

[WereCat]

2 minutes ago, Enderman said:

A lot more than you think.

DDR4 is getting cheaper.

 

Aren't the prices supposed to be going up until summer?

[MageTank]

15 minutes ago, WereCat said:

Aren't the prices supposed to be going up until summer?

Yes, there is a NAND shortage atm. Memory prices have slowly been creeping up. My personal kit is already up $20 from what I paid for it. 

[ZothOmmog]

I'm curious, is this a legit news story?

 

I mean a simple search on Google doesn't net any results.

 

Wouldn't Asus make it public?

 

I'm not pro-AMD nor pro-Intel, I just think both should get a piece of the cake.

[Okjoek]

53 minutes ago, Enderman said:

A lot more than you think.

DDR4 is getting cheaper.

Not a problem for me since I plan to be going mini ITX from now on ^_^.

[TopWargamer]

Luckily I'm right at the limit. I have 2 16GB sticks clocked at 3200MHz. Still sucks that this exists though. Hopefully can come out sooner than 1 to 2 months.

[zMeul]

2 hours ago, WereCat said:

How many people will actually use more than 2 sticks of RAM?

look at this:

 

[MageTank]

4 minutes ago, zMeul said:

look at this:

 

What about it? 4x4GB of 2133 DDR4 will work just fine. Did you not read the OP? 2DPC works just fine as long as it's under 2666mhz. 

[vanished]

I find it interesting they're thinking this will be fixable with no physical hardware modifications

[SteveGrabowski0]

7 hours ago, ZeusXI said:

well....considering faster ram doesnt help much in the long run according to an LTT video, 2400 is the sweet spot anyways. higher ram speeds has higher cas lat so you are better off with 2400 anyways. 2133 and 2400 is the highest i would ever buy IMO. Granted, there is a better read/write speed of the ram, but how much is too much?

 

That video is bullshit. They tested with a midrange gpu with massive antialiasing on. Of course the numbers were all the same because all he was doing was a gpu benchmark with the same gpu. RAM speed often matters when running a game at CPU bound settings, but never at GPU bound settings.

 

Not that I'm trying to shit on Ryzen or anything. It's an extremely exciting launch and you gotta expect a few bugs for early adopters.

[SteveGrabowski0]

7 hours ago, Bouzoo said:

Linus has been called out on this but never gave a response, there are scenarios where RAM will boost your FPS by a huge margin (iirc Fallout 4 gets 20%+ more FPS). Here is MageTanks thread. It's more than a year old btw, we have goodies like 4266 MHz RAM now. 

Yeah Fallout 4 benefited pretty greatly from an upgrade to DDR3-1600 to DDR3-2400 with my Xeon E3-1231v3 + GTX 970 system. I went from dips into the high 40s to  locked 60 fps.

[MageTank]

26 minutes ago, Ryan_Vickers said:

I find it interesting they're thinking this will be fixable with no physical hardware modifications

It depends entirely on whats causing the issue. The fact that you have to run slower speeds the moment 2DPC timings are activated, tells me it's fixable by loosening the 2DPC timings. The problem, or at least, what I feel the problem might be, is that the CPU's are not allowing the SPD data to modify said timings, or the timings themselves are not being made available to motherboard manufacturers in the first place. In which case, a software patch is perfectly applicable.

 

It's certainly not a trace topology issue, especially if it's impacting ASUS and ASrock equally (both of which are the best of the best in this area). If it's the IMC itself being completely crippled, then yeah... No amount of BIOS updates will solve that.

 

As arrogant as it would be to say "I think I can fix this", I really feel like if I had my hands on it, I could get it to work. Not saying I know more than AMD's/ASUS's engineers, just that I don't have to work within the predefined limitations that they have to work in. I can use obscene amounts of voltage, different timing/clock configurations and other tricks to at least prove/disprove the IMC's capabilities. 

[vanished]

1 minute ago, MageTank said:

*snip*

Yeah that all makes sense.  Lets hope it's not the IMC or something else actually in the CPU!  

[SansVarnic]

Aaand there is the let down I waiting for. 

At least there will be a fix though. 

[MageTank]

3 minutes ago, Ryan_Vickers said:

Yeah that all makes sense.  Lets hope it's not the IMC or something else actually in the CPU!  

What I gather from reading ASUS's info, is that it's an issue with the lack of availability of important timings: 

Quote

As it stands the AMD code has restricted RAM tuning options which means many RAM kits at launch will not be compatible.

I do wonder about the wording of this. I wonder if they mean "RAM tuning options" for them, such as profile compatibility, or if the options themselves are unavailable period, for everyone. Because we do have examples of boards locking down the options while still allowing for faster memory to be used. Laptops are a good example of this, having no manual tuning options but allowing support of DDR4 2800mhz SO-DIMMS that load perfectly fine. I suppose we will find out once they actually release them to the public and I can get my hands on a platform, though it's gonna have to wait for about another month or so to save up enough cash for an entire platform "upgrade", lol. 

[Curious Pineapple]

7 minutes ago, AceTakerV8 said:

Everyone makes mistakes. http://www.pcgamer.com/intel-skylake-cpus-are-bending-under-the-pressure-of-some-coolers/ :3 

Yeh but that's Intel, we just gloss over that one.

[niofalpha]

9 hours ago, Pohernori said:

inb4 "ram speed doesn't matter" 

 

heh

That and "You don't need RAM Faster than 1333 MHz Anyways!!!

[Curious Pineapple]

16 minutes ago, niofalpha said:

That and "You don't need RAM Faster than 1333GHz Anyways!!!

1.3 THz memory? Nope, you don't need faster than that.

[Misanthrope]

I honestly think this matter more than it's being given credit: Forgetting gaming the launch chips are supposed to compete with high end intel rigs and I would imagine that workstation type loads do response favorably to more ram speed.

[jasonc_01]

Meh, I was only going to buy 4x8gb 2400mhz kit anyways. 

[Trik'Stari]

10 hours ago, ZeusXI said:

well....considering faster ram doesnt help much in the long run according to an LTT video, 2400 is the sweet spot anyways. higher ram speeds has higher cas lat so you are better off with 2400 anyways. 2133 and 2400 is the highest i would ever buy IMO. Granted, there is a better read/write speed of the ram, but how much is too much?

 

The problem I forsee is that a lot of the fancy looking kits, only come in high speeds. Sure you can underclock but still.

 

The real question is, will the system even post or get to the bios?

[AshleyAshes]

10 hours ago, bgibbz said:

RIP. AMDs long awaited launch has a critical flaw, sounds like every single game company out there. 

https://en.wikipedia.org/wiki/Pentium_FDIV_bug

Because this is the first time something like this has ever happened.