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Zen 2 Owners Thread!

killem said:
This bug is probably explaining why I am getting wattman resets on my radeon 7

@djbully I heard you had problems with your Radeon 7 since you upgraded to a 3900X if true what went wrong?
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@killem Yeah, not sure what happened. It booted up the first evening I installed 3900X and was fine that night.
Left it the next day, and tried to boot the following day and it just would not start! It was giving me a b2 code in qcode thing.

Anyway, I have RMA'd it, and OCUK have sent it back to Asrock. Fingers Crossed :D
 
DragonQ said:
Struggling with some weird high pitched whining noise coming from my PC. I thought it was a CPU fan at first but literally unplugging all the fans (and setting GPU fan to 0) doesn't help. Must be the GPU or PSU but both of those were from my old rig and I didn't have the problem there...unless it was masked by louder case fans or something.

I guess I'll have to try a different PSU to rule that out. :(
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Turns out I was on completely the wrong path. It's my HDD. When it goes to sleep the whining disappears. Guess I'll have to try a different one!
 
Managed to get my Memory to 3733 and maintain 1:1 on the Infinity Fabric (1866Mhz) with the same CL16 timings as 3600.

With a 4325Mhz All Core Manual overclock got my CB R20 up to 7385.

I've noticed that I get the exact same score even when I min-max each CCX individually. Same 7385 result with 4400/4375/4325/4325. *shrug*
 
Sin_Chase said:
Managed to get my Memory to 3733 and maintain 1:1 on the Infinity Fabric (1866Mhz) with the same CL16 timings as 3600.

With a 4325Mhz All Core Manual overclock got my CB R20 up to 7385.

I've noticed that I get the exact same score even when I min-max each CCX individually. Same 7385 result with 4400/4375/4325/4325. *shrug*
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Now that you mention it, I realized a few days ago my theory that the 3900X had 2 6 core chiplets is correct. The 3900X is 2 3600/X highly binned, which until now does not explain why the 3800X was delayed like many people thought.
 
The working theory is the 3900X has 1 x great binned CCD and 1 x average binned CCD.

This seems consistent whit most peoples Per CCX overclocking whereby the CCXs in CCD0 are better than the CCXs in CCD1.
 
Sin_Chase said:
The working theory is the 3900X has 1 x great binned CCD and 1 x average binned CCD.

This seems consistent whit most peoples Per CCX overclocking whereby the CCXs in CCD0 are better than the CCXs in CCD1.
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I am not sure about that, should both CCD be able to reach the out of the box speeds?

I remember people used to say the 3800X was delayed because the 3900X was taking the high binned CCDs but it ended being incorrect. The 3900X has 2 CCD with 6 cores each, and 2 3 core CCX each (basically 2 3600/X)
 
Nghtmare said:
I am not sure about that, should both CCD be able to reach the out of the box speeds?

I remember people used to say the 3800X was delayed because the 3900X was taking the high binned CCDs but it ended being incorrect. The 3900X has 2 CCD with 6 cores each, and 2 3 core CCX each (basically 2 3600/X)
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Excellent question, something you would need to ask AMD marketing.

At this stage it seems that the answer to your question is a resounding No. Seeing as very few people, if any, are reaching advertised 4600Mhz boost speed on even a SINGLE CCX at this stage. It would seem that the advertised 4600Mhz boost speed on the 3900X applies to practically unrealistic workloads on a single CCX only (that being from the best CCD/CCX) and does not refer to the ability of every single CCX in the package.

The evidence from Per CCX overclocking indicates that the 3900X is a good and an average binned CCD. Not two good binned CCDs.

My own testing supports this with a Per CCX overclock at 1.325v:
CCD0 can manually overclock to CCX0 4400/CCX1 4375
CCD1 can manually overclock to CCX0 4325/CCX1 4325

My CCD1 is not far off CCD0 but I have seen other 3900X samples where CCD1 is barely stable at 4200Mhz where CCD0 is up at 4500Mhz.
 
Sin_Chase said:
Excellent question, something you would need to ask AMD marketing.

At this stage it seems that the answer to your question is a resounding No. Seeing as very few people, if any, are reaching advertised 4600Mhz boost speed on even a SINGLE CCX at this stage. It would seem that the advertised 4600Mhz boost speed on the 3900X applies to practically unrealistic workloads on a single CCX only (that ebing from the best CCD/CCX) and does not refer to the ability of every single CCX in the package.

The evidence from Per CCX overclocking indicates that the 3900X is a good and an average binned CCD. Not two good binned CCDs.
Click to expand...
From personal experience with my 3800X both of my CCX have reached 4.525Mhz while leaving everything in Auto. When I did it manually, I managed to get 1 CCX to 4.575Mhz and run C20 fine.
 
Nghtmare said:
From personal experience with my 3800X both of my CCX have reached 4.525Mhz while leaving everything in Auto. When I did it manually, I managed to get 1 CCX to 4.575Mhz and run C20 fine.
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3800X is not a 3900X however. It seems logical that AMD's decisions on binning will be different per SKU.
 
Plonked the 3800X (+ stock cooler) onto my B350M Mortar yesterday and after some initial CPU-Z and games, some basic stats.
Bios CPU fan speed - 20% @ 20c / 40% @ 40c / 60% @ 60c / 80% @ 80c with temps idle @ 35/40c and with games up to 72c (case is Corsair 280X so airflow isnt the best).
Bios PBO disabled everything else on Auto apart from RAM @1.3v.
No XMP.
CPU-Z single score 544.
CPU-Z MT score 5645.
RAM @ 2933 -14 16 16 (will not do 3200 on this board).

Will try and show screeshots later.
Will be getting a Meshify C case and a new mobo, possibly a B450 TOMAHAWK MAX.
 
LoadsaMoney said:
Keeping rig in sig, which is on Win 7 Pro, as a back-up.

Now going for :-

3700X
Gigabyte x570 Aorus Pro Mobo (if i can't get the Taichi)
NZXT Kraken X62 280mm AIO
16Gb 3200CL16 Corsair Vengeance Pro RGB
RTX 2070 Super (Msi Gaming X-Trio)
2x 1Tb Sammy 860 SSDs
Logi G Pro Wireless Gaming Mouse
Logi G710+ Keyboard (which i'll be taking from this rig)
Phanteks Enthoo Evolv X case.
Win 10 Pro :eek: :p
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Going for the 2070 Super now, seen as the 80 Super, is hardly faster than the non Super, and the 2070 Super, being as fast as the non Super 80, and not much slower than the 80 Super. :p
 
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I finally got my 3700x set up after updating my X470 bios using a cheapo APU from eBay. The CPU is sitting at 55c in the BIOS with a 120mm Silverstone AR01 on turbo mode with the side panels off the case :/ I know it's hot right now but my stock (albeit undervolted) 4770k is browsing, downloading windows 10, spotify etc at 37c on a cheaop rajintek 92mm cooler :(
 
Today is not a good day to run a Zen 2/Vega system. Could cook bacon inside my system.

@almoststew1990 My 3900 is idling at 45-8 on a H100i. It’s just a very hot day, and these do run warm. I don’t think I’d ever stress any system on a day like today unless it was under a custom loop.
 
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