Zen 2 Owners Thread!

Journey · 15 Jul 2019 at 22:20

opethdisciple said:
I guarantee it wont be 'resolved by bios updates. It's probably a theoretical max based on ultra optimal conditions (and probably a golden chip). Of which the majority of us we'll never have.

What are you supplying for that guarantee? Do you actually know how important CPU microcode in BIOS is to make a processor perform as expected?

motiv · 15 Jul 2019 at 22:22

opethdisciple said:
I guarantee it wont be 'resolved' by bios updates. It's probably a theoretical max based on ultra optimal conditions (and probably a golden chip). Of which the majority of us we'll never have.

All of my cores on my 3700 can reach boost speed of 4.4 when manually OCing. So the question is really does the 3900 have extra capacity to hit 4.6.

My problem is I need 1.5v to hit 4.5 on a single core and with that all other cores are downgraded automatically to 2ghz and it still overheats when running CB.

The thermals to reach high clocks for any period of time are staggering on my chip.

meh? · 15 Jul 2019 at 22:22

I find running my ram at 3466 it boosts really high... if I run my ram at 3600 it only boosts to 4.2ish.

opethdisciple · 15 Jul 2019 at 22:22

Journey said:
What are you supplying for that guarantee? Do you actually know how important CPU microcode in BIOS is to make a processor perform as expected?

Well my 2700x is now over a year old and I haven't seen over 4.1GHz. As I said it's based on optimal conditions and a golden chip.

Journey · 15 Jul 2019 at 22:23

opethdisciple said:
Well my 2700xis now over a year old and I haven't seen over 4.1GHz. As I said it's based on optimal conditions and a golden chip.

You are 100% wrong.

i_am_jon · 15 Jul 2019 at 22:23

Got my 3900x @ 4.3Ghz all core 1.38v, Ram/IF @ 3667/1833. Still seems stable and load temp is holding around 65-70 degrees.

I'm happy with my current settings for now, maybe we will get a reliable 4.6 boost with agesa update.....

opethdisciple · 15 Jul 2019 at 22:23

motiv said:
All of my cores on my 3700 can reach boost speed of 4.4 when manually OCing. So the question is really does the 3900 have extra capacity to hit 4.6.

My problem is I need 1.5v to hit 4.5 on a single core and with that all other cores are downgraded automatically to 2ghz and it still overheats when running CB.

The thermals to reach high clocks for any period of time are staggering on my chip.

Manual ocing is a different kettle of fish. I'm referring to PBO.

opethdisciple · 15 Jul 2019 at 22:24

Journey said:
You are 100% wrong.

Absolutely not.

I'm talking about PBO. Not manual overclocking.

Case in point. My 2700x with it's advertised 4.3GHz has never boosted beyond 4.1GHz. After well over a year of BIOS maturity.

motiv · 15 Jul 2019 at 22:27

opethdisciple said:
Manual ocing is a different kettle of fish. I'm referring to PBO.

PBO is awful. It's completely borked and needs fixing. Running CB with it ends with the voltages being around 1.3 and all cores around 3.5. It then idles at 1.45 - 1.5volts for me.

cliffy · 15 Jul 2019 at 22:29

meh? said:
I find running my ram at 3466 it boosts really high... if I run my ram at 3600 it only boosts to 4.2ish.

What does teh cpu boost to exactly?

Sin_Chase · 15 Jul 2019 at 22:31

meh? said:
I find running my ram at 3466 it boosts really high... if I run my ram at 3600 it only boosts to 4.2ish.

One has to be wonder if running IF close to the max 1:1 divider limits has an impact on the package as a whole to boost.

Lolik · 15 Jul 2019 at 22:47

8 pack 3200 c14 here, no probs with boost

andy_mk3 · 15 Jul 2019 at 22:48

i_am_jon said:
Got my 3900x @ 4.3Ghz all core 1.38v, Ram/IF @ 3667/1833. Still seems stable and load temp is holding around 65-70 degrees.

I'm happy with my current settings for now, maybe we will get a reliable 4.6 boost with agesa update.....

Voltage is a touch high, 1.325v is the max recommended for all cores. Which is what I'm running for 4.35ghz.

cliffy · 15 Jul 2019 at 22:48

Lolik said:
8 pack 3200 c14 here, no probs with boost

What are your boosts? All core and single?

Sin_Chase · 15 Jul 2019 at 22:48

I'm seeing elsewhere that people running 3600 memory are seeing the stunted boost clocks also.

"3600 is the sweet spot" my arse....

I’m going to try run my 3600 at 3400 and see what happens to boost clocks.

meh? · 15 Jul 2019 at 22:50

Mines boosting to this @ 3466 ram

andy_mk3 · 15 Jul 2019 at 22:51

I guess I'll have to try messing with my ram tomorrow night to see if I get any different boosts.

cliffy · 15 Jul 2019 at 22:51

meh? said:
Mines boosting to this @ 3466 ram

Nice, what are they sustaaining when on 100% load in cinebench?

oweneades · 15 Jul 2019 at 22:52

opethdisciple said:
Absolutely not.

I'm talking about PBO. Not manual overclocking.

Case in point. My 2700x with it's advertised 4.3GHz has never boosted beyond 4.1GHz. After well over a year of BIOS maturity.

My 2700X on a Gigabyte X370 gaming 3 shows boosts up to 4.35Ghz in HW monitor on a single core. Sustained boost is lower though which is in line with most tests.

i_am_jon · 15 Jul 2019 at 22:55

andy_mk3 said:
Voltage is a touch high, 1.325v is the max recommended for all cores. Which is what I'm running for 4.35ghz.

Is it? I just went straight in at 1.4v after seeing PBO running it at 1.45+, I even tried my luck with 4.4Ghz at 1.475v.

Been working the voltage down to see how low it keeps stable, next stop 1.35. Are you setting loadline calibration? Mines still on auto not sure how it's behaving vs manual setting.

Will be interesting to see if 3200 vs 3600 ram helps with the boost and how the benchmarks compare.