DDR Training ??

ggilmour53

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With your input I am quite happy with the results.
This will keep me going until DDR5 starts to arrive, do you have any insight as to what the first batches of DDR5 will bring??
 

citay

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You mean you don't see the list of BIOS versions? Maybe their servers are acting up again. Although it works for me at the moment.
 

ggilmour53

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I think I have have had the MSI-Unify-Support link work 2 times out of at least 10 try's , no idea why that is
 

ggilmour53

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I noticed on boot after a long gap ( me sleeping ) that the RTLs or IOLs were out of sync a little but after a restart they were OK, so I thought I would try lowering tRFC to 620 with this in mind so it did work , exampes follow first img the cold boot second img the restart Is this normal behavior ??
asrock17.PNG

asrock18.PNG
 

citay

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Is "Memory Fast Boot" disabled or enabled or Auto? Auto should be enabled. I like to set it to disabled, then the RAM trains on every boot. This way, at least for the RTLs/IOLs, it can determine the best value each boot. When you notice that they're wonky sometimes (e.g. 74/70 + 15/9), maybe some other setting is also a bit too tight for comfort. It doesn't always have to be tRFC. But if it is tRFC, you can set it another 10 higher, doesn't make a big difference.
 

citay

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Disabled is ok. I use that too. Auto/Enabled boots faster, but with manually optimized RAM timings, it's more important that it always passes training reliably. Since it trains on every boot, you would notice immediately if there's a failure, because it would show the "Overclock has failed, press F1/F2" error message during POST. Which could happen on a very hot day, with timings that would juuuust about work on a cooler day, for example.

At this point, my RAM is so stable that i could probably set it back to Auto and enjoy a couple seconds less training time each boot. Once your RAM always trains rock stable, you can set it back to Auto.
 

ggilmour53

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I was wondering why we are getting DDR5 ram for next gen motherboards when I have DDR6 on my GPU which is running at a stock 14000mhz. Is it the price?
 

citay

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On the graphics card it isn't DDR6, it's GDDR6. The development is not parallel with DDR, meaning, GDDR6 is still somewhat comparable to DDR4, and is not two steps ahead. As for the frequencies: Since GDDR is soldered onto the PCB, and is right next to the GPU, it's much easier to optimize for high freqencies than normal RAM modules that have to be plugged into sockets.
 
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