Easiest OC guide:

1) Enable XMP (D.O.C.P Standard):


2) vCore set to offset -0.1v:


3) Enable PBO, override OC 100-200MHz (depending on your chip strength):


4) Disable C-state:


5) Run CB R20 benchmark.

https://www.computerbase.de/forum/threads/c...aelter.1911429/

This is a very good read on overclocking for ryzen.

these are quite good rams.

but there's an even better one from XPG D60G 3600mhz CL14. expensive though, iirc RM800-RM900 for a set of 2 x 8GB.

if you can push both your infinity fabric and memory to 3800mhz you will see very good gains on performance.

Zen2 you can let the cores go to sleep, hardly any performance loss.
And ooc. you never disabled EEC? For my C6H Auto was Enabled, can cause issues at boot.

Oh @crazyfatt, try other voltage offsets (-0.025V till -0.15V) and compare performance/temp.

Single core is pretty low.
MC also not more than stock with a stock 3950x (always around 9150-9250)

Try to test with this:
- PBO Off
- No VCore Offset
Then check my power plan thread and change the bios settings from the spoiler there.

Then test once with your stock power plan and once with the one I was sharing and let us know results here
What owikh84 posted under 5) "Disable C-state:"
Disabling this would prevent cores from going to sleep but I do not think this is necessary.
(You already disabled it) enable it as per above.

Single core is pretty low.
MC also not more than stock with a stock 3950x (always around 9150-9250)

Try to test with this:
- PBO Off
- No VCore Offset
Then check my power plan thread and change the bios settings from the spoiler there.

Then test once with your stock power plan and once with the one I was sharing and let us know results here
What owikh84 posted under 5) "Disable C-state:"
Disabling this would prevent cores from going to sleep but I do not think this is necessary.
(You already disabled it) enable it as per above.

Same like mine. Whenever you do voltage negative offset. Single core performance takes a hit. But in multicore u get higher scores cause of the lower temps.

So you gotta ask yourself. What are you mainly using your pc for? Which are you willing to sacrifice?

This edc 1 bug has given me the best results at the moment. Both SC and MC performance increase.

Can give us more info like which motherboard, which RAM model, the timing and frequency you attempted?

Did u use thaiphoon burner to check ur ram details?

That looks like a good b-die so congrats.
But probably tRC can still tightens up a bit to 58 or 60.

Anyway, the import function in DRAM calculator may not function correctly so I usually only specify the die, rank, chipset and the speed I want to run. Then press calculate fast and safe to compare the difference. Overclocking RAM needs a lot of patience and the DRAM calculator results are just a reference.

Also, make sure you use the latest version of DRAM calculator.

a)
for 4 sticks rtt write should never be off. keep it on /3 (or 80 for those with other boards but same issue)

don't blindly follow calc if you see or presume it works better otherwise. end of the day, it's just a database which spits out stuff based on your input.
it doesn't exactly calculate anything specifically for your kit.

b)
keep running 3800MHz. If you can't get it to work on CL14 just run it on CL16 with lower voltage, GDM on, and 1T.
You need to share more info (use zentimings for timings + list down used voltages, procodt, cad's, and rtt's

@steven789 for a locally bought chip you got a nice one.
I feel AMD keeps supplying local distributor with quite dated stock.
Mostly I see 2019 production weeks in stores.
My 8c does 4.325 with your voltages (I allow for more vdroop, its good to prevent undershoot after all.), so your's is quite a bit better (on manual OC at least). Especially taking cooling and temps into consideration.