IMPORTANT Explaining the AMD Ryzen "Power Reporting Deviation" -metric in HWiNFO

[Lord_Nazgul]

Ryzen 5700x
Asus ROG Strix B550 -F Gamig Wifi II
Gskill 2x 16gb 3600 CL16
PSU Seasonic Core GC-650 Gold
Only XMP turned on rest is stock/default in Bios
Reading still tread about this and asking is this fine with my pc numbers in HW with cb23 multicore test for Ryzen 5700X?Thanks

 

[James De'Souza]

Yes, it means that unless the system is running at constant full load that value is meaningless.

Thank you for the confirmation.

 

[Zach]

Ryzen 5700x
Asus ROG Strix B550 -F Gamig Wifi II
Gskill 2x 16gb 3600 CL16
PSU Seasonic Core GC-650 Gold
Only XMP turned on rest is stock/default in Bios
Reading still tread about this and asking is this fine with my pc numbers in HW with cb23 multicore test for Ryzen 5700X?Thanks

You have a PRD report of 94.2% during the CBR23 and a report of 76W(PPT).

76 : 0.942 = 80.67W (true CPU power consumption during that specific test)

Anything between 90-110% of PRD under 100% CPU load is fine.

 

[AlleyViper]

76W and not 88W? Thanks for clarification. Because of a wrong assumption I was convinced that CPU PTT value in hwinfo is already recalculated to an actual real value.
Thanks.

UPDATE:

So decided to have a go with 'CPU VDD Full Scale Current' setting. And it turns out that after setting it to 145A in bios the PRD in hwinfo is now very close to 100% under full load in Cinebench and without oc.
Interestingly that has been already pointed out by DrhexUK in post #294 and by u/The-Stilt on reddit.

Very late reply, but might still be of use for similar MSI B450 Boards, as I observed different values for default+adjusted (206->165).

I moved a 5800x B0 to another system with a B450 Tomahawk Max II on E7C02AMS.H63 (last 1.2.0.3c available). While stock SC scores were ok, MT was lowish vs. on a Strix X470-F (CB20 57xx vs 60xx, CB23 147xx vs >155xx), or most online figures. On the Tomahawk, CB20 power deviation reported ~124-125%, and TDC was always the limiting factor stuck at 100% 95A, instead of PPT (that only raised to 136W reported, bellow max stock 142W, EDC at most 131A).

johnydlr, one can check VDD Full Scale Current's default just by setting Auto and then pressing numpad -/+, so the next value that shows will be adjusted relative to the board's default (changing to 205/207 from base 206 on mine). A few other settings behave the same way, then reset if you type Auto.

It seems VDD Full Scale Current adjustment vs default is proportional to the PRD results in this system. This mb's def. was 206A, so (100x206)/125=164.8 and by adjusting it to 165A, immediately moved PRD to 99.X% during CB20. Scores raised to 60xx (also upper 154xx on CB23), both finally within margin of what I'd expect stock.
CPU Tctl/Tdie took a big hit on CB20, from 73ºC to 85ºC max, all the while raising max all core ~4368MHz to ~4.508, then slowly coming down to ~4479 past 80ºC. Most can be blamed on an ancient TRUE Blk Rev.A + 2xNF-A12X25 over the 8C CCD (...and a ~8 y.o. tube of CFIII -- went out of newer paste while mounting). IIRC, previously on the other mb+Galahad 360+fresher case, slightly higher boost figures were under 76ºC. So, I'll have to CO'it while taming MT a bit.

(Btw, an all core -5 CO will lower reported PRD from ~125 to 122% vs stock), so maybe it's better to disable it prior to adjusting PRD)

 

[speaker]

5800x
Mag B550 Tomahawk
Latest Bios

All but core 2 at -30, core 2 at -20.
PPT 130
TDC 90
EDC 130

Tested with OCCT Large Data Set, Extreme, variable, AVX2. Starts at core 0 with core swap and cycling every 5s.

Attached is hwinfo while making this post.

lmk if need more information.

 

[AlleyViper]

See first post, maybe try instead with a stable all core load like CB20 NT, hwinfo polling at or less than 1000ms, and then observe PRD. Your heavy single core test could be showing higher deviation than in a more ideal testing scenario.

 

[BobC0728]

BIOS: reset, clear CMOS
XMP enabled
PBO: disabled
Test: OCCT CPU Test, processor at 100%, CPU Package Power ~145W, CPU Core Voltage ~1.32v
MB: Gigabyte X570S Aorus Master
CPU: 5900X
Memory: 3600 speed with XMP on

My Power Reporting Deviation is averaging 109.2% with a 30 min test, from what I have read my chip thinks it is drawing more power than it actually is. MB manufacturers want to cheat the other way, since above 100% hurts performance. So I am an "odd duck". I understand the metric says 90 to 110 is normal, but I am so close to the edge I am wondering. And I learned a long time ago that when engineers quote round numbers it might be a guess....lol

Questions:
-1: did I do test correctly?
-2: I have intermittent WHEA 18, BSOD failures only when gaming (stock BIOS, only XMP on) and am grasping for anything to figure it out. Could underreporting power draw to CPU cause it to go to low and cause a BSOD?

 

[BobC0728]

BIOS: reset, clear CMOS
XMP enabled
PBO: disabled
Test: OCCT CPU Test, processor at 100%, CPU Package Power ~145W, CPU Core Voltage ~1.32v
MB: Gigabyte X570S Aorus Master
CPU: 5900X
Memory: 3600 speed with XMP on

My Power Reporting Deviation is averaging 109.2% with a 30 min test, from what I have read my chip thinks it is drawing more power than it actually is. MB manufacturers want to cheat the other way, since above 100% hurts performance. So I am an "odd duck". I understand the metric says 90 to 110 is normal, but I am so close to the edge I am wondering. And I learned a long time ago that when engineers quote round numbers it might be a guess....lol

Questions:
-1: did I do test correctly?
-2: I have intermittent WHEA 18, BSOD failures only when gaming (stock BIOS, only XMP on) and am grasping for anything to figure it out. Could underreporting power draw to CPU cause it to go to low and cause a BSOD?

Switched MB's to MSI MAG B550 Tomahawk, now this value is 113.6%
Also switched memory on previous MB, still had BSOD. New memory is G.SKill Samsung B-die 16-16-16-36

 

[cpurpe91]

My Power Reporting Deviation is reporting under 100% at idle. Is this typical? It was reporting over 100% last time I looked, and I haven't changed anything.

 

[bullet2392]

Hi, i have some issues with my new 5800x3d, during gaming i have strange reboot and in event viewer i have id error 18 whea-logger.
EDIT:
BTW strange things were that reboots most likely occur with non-cpu intensive gaming and more often during ALT + TAB or WIN key pressed.

Errore hardware irreversibile.

Segnalato dal componente: core processore
Origine errore: Machine Check Exception
Tipo errore: Cache Hierarchy Error
ID APIC processore: 1

My config:

CPU: AMD 5800X3D
Asrock b450 pro4 with latest chipset driver installed
Bios P8.02 (PBO disabled) AGESA Combo V2 PI 1.2.0.8
24 GB RAM @3200 (tried lowering to 16GB at 2400, without any changes)
AMD RADEON 6950XT on latest drivers 23.7.2
PSU 1000W ASUS TUF GAMING

I'm writing here since i noticed something really weird, as you can see in image attached: 396% of maximum Power Reporting Deviation
Reading better the main post of this thread, these values are pointless in minimum-maximum values.

What you suggest to do? Is my motherboard trash?
EDIT:
what I have tried:
- Reset bios settings. Lowering PBO curve (finally i have ended disabling it completely, with no lucks, but fewer reboot)
- Use only 2 sticks of ram at 2400 mhz
- Disable frequency boost
- Enable medium current usage idle
- Silent BIOS for 6950xt
- Uninstall RGB software, and MSI Afterburner

LAST EDIT:
I changed the motherboard with a MSI B550 and had no issues anymore. So yes, my motherboard is trash.
Don't trust Asrock, that motherboard does not support a a 5800X3D.

 

[siebenschläfer]

So i experimented bit with my MSI B550 R5 5600x. And i would pretty much always get 117% when running Fullload. Tried Prime (smallest), OCCT Small and different Cinebench versions.
Only settings i changed are enabling Smart Acesss Memory and XMP everything else is on Stock. Bios is up to date. Should i be concerned?


*Edit* So i have tested now with Y-Cruncher and i get it pretty much to 109% - 110% which i guess is normal. I'd say it strongly depends on the Tools using since 100% CPU-Stress doesn't seem to always actually mean "Full-Load". Though even with my High End Cooler i would get like 80° there which was the first time i saw that kind of temperatures (usually i run Prime with under 70°).

 

[Kyton]

HI All.

Just started using HWiNFO to monotor voltages as have has some random reboots which i think is power relatad. Are these readings fine while gaming.