RAM frustrations

[Sider]

That's Micron E-die.
While most 3200MHz CL16 DIMMs are likely some Hynixes/what ever slower chips. Possibly even already "factory overclocked"/binned near limit.
At 3200MHz only CL14 can be expected to be good old B-die.

I've got it at 3200 Cl14. Which is more than I can say for the vengeance stuff which was apparently B-die

 

[tamzzy]

At 3200MHz only CL14 can be expected to be good old B-die.

true but not quite true...
whilst binned b-die can do 3200c14 stock, e-die can largely be expected to do 3200c14 without breaking much sweat - even though they are rated at 3200c16

 

[EsaT]

I've got it at 3200 Cl14. Which is more than I can say for the vengeance stuff which was apparently B-die

Don't remember seeing any 3200MHz CL16 with B-die in long time.
Few years ago they might have been unbinned/lower bin B-die, but as long as I've been checking this site 3200MHz CL16 Corsairs have been mostly other chips.
https://www.hardwareluxx.de/communi...liste-alle-hersteller-25-10-19-a-1161530.html
Also 3200MHz CL15 G.Skills are various different chips with various bins.

 

[EsaT]

true but not quite true...
whilst binned b-die can do 3200c14 stock, e-die can largely be expected to do 3200c14 without breaking much sweat - even though they are rated at 3200c16

While capable to that haven't yet seen anyone binning E-dies for that.
And Crucial seems to be so far only one selling them at CL16.
https://www.hardwareluxx.de/communi...esen-v2-update-04-11-19-a-1073628.html#lstH.F

 

[tamzzy]

While capable to that haven't yet seen anyone binning E-dies for that.

correct. also means that one can buy them for cheaper

 

[PowerPie5000]

My Asrock x470 Taichi would reset 3 times before booting if I left the memory voltages on 'auto' when changing the memory speeds. It would also revert back to either 2133 or 2400 instead of the XMP rating of 3200 for my kit (HyperX Predator - Hynix J-die).

Enabling XMP would change the memory voltage to 1.35v and the VTT-DDR to 0.680v.... I left those values as they are instead of 'auto' and then manually changed the memory speed to 3333 cl16 and it's been fine since. I might try my luck and tighten the timings without bumping up the voltage.

For some reason the memory would revert to 2133 (or 2400, can't quite remember) if I leave the voltage settings to 'auto'.

 

[Nasher]

DDR4 has always been a PITA. My Asrock board just won't boot with the XMP settings enabled unless I boot it with 1 stick in, set everything up, turn it off and then put the 2nd in. Then it will boot

 

[Firegod]

My Asrock x470 Taichi would reset 3 times before booting if I left the memory voltages on 'auto' when changing the memory speeds. It would also revert back to either 2133 or 2400 instead of the XMP rating of 3200 for my kit (HyperX Predator - Hynix J-die).

Enabling XMP would change the memory voltage to 1.35v and the VTT-DDR to 0.680v.... I left those values as they are instead of 'auto' and then manually changed the memory speed to 3333 cl16 and it's been fine since. I might try my luck and tighten the timings without bumping up the voltage.

For some reason the memory would revert to 2133 (or 2400, can't quite remember) if I leave the voltage settings to 'auto'.

I use the HyperX Predator 3200Mhz 32GB (2x16GB) and the voltage does need to be 1.35v so that is fine. I usually plumb the values in manually and never use auto. I always note them down in advance before swapping the memory over. CAS 16, Ras to Cas 18, RAS Precharge 18, tRAS 36 and tRC 74 (the main ones I can remember). Would have to check a few of the finer settings. With 1.35v at 3200Mhz though, boots fine. That's on an X470 mobo.

Cheers.