I have just built a rig with Ryzen 5 3600 with B450 Strix-F. On latest bios 2605 (Aegesa 1003 ab). All core boost clock (PBO + auto overclocking) is only 3950Mhz during CPU-Z stress test and Aida64 stability test. single core boost also never goes beyond 4100Mhz. However i can manual overclock to all core boost clock of 4200MHz with voltage of 1.4V, Aida64 stable for 30min.

I am using 360mm AIO and my CPU temp is good. Max load while on PBO + auto overclocking was only 72C. Hence the PBO is definitely not limited by the temp.

Any sifu here can confirm whether PBO is broken for B450 chipset with latest microcode?

I have just built a rig with Ryzen 5 3600 with B450 Strix-F. On latest bios 2605 (Aegesa 1003 ab). All core boost clock (PBO + auto overclocking) is only 3950Mhz during CPU-Z stress test and Aida64 stability test. single core boost also never goes beyond 4100Mhz. However i can manual overclock to all core boost clock of 4200MHz with voltage of 1.4V, Aida64 stable for 30min.

I am using 360mm AIO and my CPU temp is good. Max load while on PBO + auto overclocking was only 72C. Hence the PBO is definitely not limited by the temp.

Any sifu here can confirm whether PBO is broken for B450 chipset with latest microcode?

The PBO + Auto OC definitely works well with my 3600. I'm now hitting an all core boost between 4.25GHz and 4.3GHz during gaming and a single core boost of 4.4GHz. Before enabling PBO + Auto OC i was capped at 4.1GHz.

pbo is pretty much broken across platforms, that's not limited to b450

if you're fancy to OC at this moment, do auto oc only.

actually if I were you, at this moment I would simply adjust PPT, TDC's, and EDC's.

pretty much max freq can be squeezed out from d x470 + CJR... 

Even though I hate mem (benchs) on settings that are far from being stable for long term that's a pretty good 2666 rated kit you got there despite your timings are suffering big time to achieve the frequency.
That cpu however o.O 4.125GHz with 1.456V … damn. Mines doing 4.225 more with 1.415 (AVX ST) (which translates to 1674 mc cb in r15)

one stable light overclock on my small ryzen system then 

3600 @4.125Ghz, 1.344V (no lcc so its @1.31 after vdroop)
B450 Tomahawk
2x16GB E-Die 1:1 FCLK, 3800, 16-19-16-38

solid cpu but far from outstanding. maxes out at 4.225 @1.39 with llc. I like my system silent and more efficient however.

E-dies as expected, tRCDRD and tRFC (a bit) higher than what one would see using B-dies. other than that it's on par with 'regular' binned B-dies.

Karhu 10000% passed at 3800 16-19-16-38-56?
Mind sharing your ss?

[2019-08-27T00:54:55.7314524+08:00] Started testing 27181 MB with 12 thread(s).
[2019-08-27T08:02:08.8908140+08:00] Stopped testing after 0:07:07:13 with 11247 % coverage and 0 error(s).

Karhu 10000% passed at 3800 16-19-16-38-56?
Mind sharing your ss?

ah_khoo still busy oc ~!

morning, there you go

really calm around here 

-> question:
anyone running his b-die kit on 3733/3800 c14 stable?

Gonna try coming weekend. Unfortunately my 3700x (unlike my 3600) doesn't do 3800 on 1:1 so I am eying 3733 14-15-14-35-42 for now, maybe can drop ras a bit. should drop latency to or slightly below 65.

very2 nice timing & frequency considerin they are more of budget sticks (correct me if i'm wrong) bro... 
if ur referrin to 32GB kit, i believe it's close to 0 here (from observation). as for 16GB, pls wait for bro owi... results comin pretty soon i guess... 

yup, it's def. a better than average set I got there.for just slightly over RM800 for 32GB with these capabilities is a steal.
if I didn't have some very nice b-die kits I would keep them for sure.

let's see what your sr b-dies can do 
I have a sr hyperx 4000c19 rated kits here which are OK.
soon will get back my 3200c14 g.skill ones, despite having only used those on intel some time back they should be better... lets see

unfortunately i have no bdie with me nemore, that was a loan set from my friend. 

cjr while pretty decent in mileage (pardon d lax timing ofcourse) is very2 challengin to be tamed @ HCI... i dont have d time & patience to HCI @ high frequency i afraid. 32M is d furthest i can go but it really means nothing for total stability. 

Samsung started selling a-dies ddr4 32gb today. 10nm, 16GBit/chip, rated 2933 cl21. Doubt they will be any good for OC but we shall see.