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X370 Future Memory Support
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wardog View Drop Down
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Originally posted by Nemesis.ie Nemesis.ie wrote:

Speaking of RAM.

I just updated the UEFI on my AsRock X370 Gaming Pro from 1.60 to 1.93D. It cleans up the interface a lot and adds in profile saving and such which is nice to see, however, here's the bad news:

Per AIDA64 @ ~3900MHz OC on the CPU, RAM (3733Mhz Team TF @ 3200MHz) bandwidth in 1.93D is down to ~44,000MB/sec versus the ~51,000MB/sec in 1.60.

~Asrock: can we have the speed back please?

If this was changed for compatibility, maybe open the settings used so the default is compatibility/slow but those of us with modules than can handle it can get the extra speed.

Thanks!


Can you post pics of AIDA of 1.60 and 1.93D?

Too, any chance you created and saved a Report.txt file from CPU-z of 1.60 and 1.93D?
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Nemesis.ie View Drop Down
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Hi Wardog,

I have pics and can post later/tomorrow. Big smile
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wardog View Drop Down
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Originally posted by Nemesis.ie Nemesis.ie wrote:

Hi Wardog,

I have pics and can post later/tomorrow. Big smile


Awesome. Thanks.
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Nemesis.ie View Drop Down
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AIDA64 RAM speed UEFI 1.6 vs 1.93D.

1.6:

https://drive.google.com/file/d/0B8chhVGt74cUUFJwVHZNa0oyTU0/view?usp=sharing



1.93D:


https://drive.google.com/file/d/0B8chhVGt74cUYlZSVDF1TlllcDA/view

Even with tighter timings the 1.93D is a lot slower (1.6 supports the 16-20-20-39 too).



Edited by Nemesis.ie - 02 Apr 2017 at 4:50am
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debaser View Drop Down
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I noticed a decrease in memory bandwidth too with 1.93a beta and 2.0 bios for the Killer SLI :(
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Nemesis.ie View Drop Down
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As an aside, CPU-Z is now reporting the wrong voltage since 1.93D, it shows a CPU voltage of 2.6v.

Were some the the I2C sensors swapped around I wonder?
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wardog View Drop Down
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Originally posted by Nemesis.ie Nemesis.ie wrote:

~Asrock: can we have the speed back please?


Here's your speed. Remember, Ryzen turns some things that we knew upside down.

1.60 Timings
18 tCAS, 20 tRC, 20 tRP, 39 tRAS, 1 T/N/CR

1.93D Timings
16 tCAS, 20 tRC, 20 tRP, 39 tRAS, 1 T/N/CR



Ryzen loves tCAS tRP and tRP to be the same latency. Thus above we can see that with the CAS of 18, nearing that magical matching tCAS tRC tRP latencies.

On 1.60(18 tCAS) notice too your L3 Cahe jump right up and say Hello!




Lastly, concerning the synthetic bench of AIDA, don't devote too much time with the Memory row of Read, Write and Copy values.

Here's my Z170 OC Formula with an 17-6700K




Would you call that slow as molasses, or Holy sh*t Batman?










Edited by wardog - 02 Apr 2017 at 10:33am
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Nemesis.ie View Drop Down
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[URL=][/URL]I meant to add a note about the timings on the previous post.

I have used 16-20-20-20 and 18- etc. as well, ie the same settings for both UEFIs and there is still that large 45 vs 51GB/s difference between the two versions irrespective of the timings.

I only had those pics of 1.60 handy.

If you want, I can grab a pic of 1.93D with the 18-20-20-39 (which is actually the XMP for 3733) and try at 18-18-18-18 (39)?

I found I have this one with the CL18 settings but it is at 4025, you can see the large gap from UEFI and then a bit of extra speed from the higher CPU clock. :)

https://drive.google.com/file/d/0B8chhVGt74cURm1ic1RyZHdoYms/view?usp=sharing

I only submitted my reports to FinalWire, so none saved locally.

Edited by Nemesis.ie - 02 Apr 2017 at 4:58pm
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wardog View Drop Down
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Originally posted by Nemesis.ie Nemesis.ie wrote:

I meant to add a note about the CAS.

I have used 16-20-20-20 as well and the same settings for both UEFIs and there is still that large 45 vs 51GB/s difference between the two versions irrespective of the timings.

If you want, I can grab a pic of 1.93D with the 18-20-20-39 (which is actually the XPM for 3733) and try at 18-18-18-18 (39)?


Yea. Both please.
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Nemesis.ie View Drop Down
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Hi,

Those RAM speeds you posted look pretty impressive compared to my Z97 4790k @ 4.8GHz with 2400MHz RAM.

Back to the Ryzen.

Here are 5 tests at different timings @ 4025MHz for comparison with the 4025MHz 1.60 one I posted above.

None of the settings close the >15% gap versus the 1.60 results so something does seems to have changed.

https://drive.google.com/file/d/0B8chhVGt74cUNG5oMFdSZWlTODg/view?usp=sharing
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