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Ryzen 3600 | PBO, EDC Bug, LLC, CPU Scaler & CPU Boost - My findings ...

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post #1 of 11 (permalink) Old 06-29-2020, 02:09 AM - Thread Starter
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Ryzen 3600 | PBO, EDC Bug, LLC, CPU Scaler & CPU Boost - My findings ...

The System

SeaSonic X750 Gold 750W
MSI X370 XPOWER Gaming Titanium
Ryzen 5 3600 2010SUS
Viper Steel Series PVS416G413C9K
Asus GTX 780 DCII OC
Samsung 960 EVO 500GB
EK-FB MSI X370 XPower RGB Monoblock 1/2" ID | Swiftech D5 MCP655 | EK-XRES 100
Alphacool NexXxoS UT60 280 | 4 x Scythe GT AP-15 @ 5v
Thermochill PA120.3 | 1 x NF-A12x15 | 2 x ML120 | PWM

Software
BIOS: 7A31v1MR
Operating System: Windows 10 1903 (OS Build 18362.900)
AMD Chipset Drivers: v2.04.28.626
Power Plan: AMD Ryzen High Performance

Voltage Settings

vSOC - Offset Mode, -0.0375v, LLC Mode 1, 1.072v (BIOS Reading)
vDDP - 0.995v
vDDG IOD/CCD - 1.025v
vDRAM - 1.50v (1.520v BIOS Reading)

Digi Settings

CPU Overcurrent Protection - Enhanced
CPU Switching Frequency - 300 Khz
CPU NB Overcurrent Protection - Enhanced
CPU NB Switching Frequency - 400 Khz
DRAM Overcurrent Protection - Enhanced
DRAM Switching Frequency - 375 Khz
DRAM Phase Control - Disabled

CPU Settings

Global C-State Control - Disabled
Spread Spectrum - Disabled
AMD CnQ - Enabled
SVM Mode - Enabled
Power Supply Idle Control - Typical Current Idle
CPPC - Enabled
CPPC Preferred Cored - Enabled

Baseline Settings

CPU vCore @auto
BCLK @106.875 mhz
CPU Boost @150 mhz

All other settings refer to screen shot
Attached Thumbnails
Click image for larger version

Name:	BCLK-Settings.jpg
Views:	65
Size:	439.1 KB
ID:	357488  


SeaSonic X750 Gold 750W
MSI X370 XPOWER Gaming Titanium | Ryzen 5 3600 2010SUS @ 4400 mhz @ 1.325v (prime95 load)
Viper Steel Series PVS416G413C9K @ 3800/1900 mhz | 1.52v | 14-15-14-14-28-42-252-16-1T
Asus GTX 780 DCII OC @ 1332/3522 mhz | 1.3v | Samsung 960 EVO 500GB
EK-FB MSI X370 XPower RGB Monoblock 1/2" ID | Swiftech D5 MCP655 | EK-XRES 100
Alphacool NexXxoS UT60 280 | 4 x Scythe GT AP-15 @ 5v
Thermochill PA120.3 | 1 x NF-A12x15 | 2 x ML120 | PWM

Last edited by mongoled; 06-29-2020 at 02:41 AM.
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post #2 of 11 (permalink) Old 06-29-2020, 02:09 AM - Thread Starter
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65W Default vs EDC @3

Comparison of

CPU vCore Auto, CPU LLC Auto, BCLK 106.875 mhz, CPU PPT @88w, TDC @60a, EDC @90a, CPU Scaler @auto , CPU Boost @150 mhz

vs

Exact same settings but EDC @3a
Attached Thumbnails
Click image for larger version

Name:	65W Default vs EDC @3.jpg
Views:	51
Size:	154.2 KB
ID:	357490  


SeaSonic X750 Gold 750W
MSI X370 XPOWER Gaming Titanium | Ryzen 5 3600 2010SUS @ 4400 mhz @ 1.325v (prime95 load)
Viper Steel Series PVS416G413C9K @ 3800/1900 mhz | 1.52v | 14-15-14-14-28-42-252-16-1T
Asus GTX 780 DCII OC @ 1332/3522 mhz | 1.3v | Samsung 960 EVO 500GB
EK-FB MSI X370 XPower RGB Monoblock 1/2" ID | Swiftech D5 MCP655 | EK-XRES 100
Alphacool NexXxoS UT60 280 | 4 x Scythe GT AP-15 @ 5v
Thermochill PA120.3 | 1 x NF-A12x15 | 2 x ML120 | PWM

Last edited by mongoled; 06-29-2020 at 02:20 AM.
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post #3 of 11 (permalink) Old 06-29-2020, 02:09 AM - Thread Starter
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105W Default vs EDC @3

Comparison of

CPU vCore Auto, CPU LLC Auto, BCLK 106.875 mhz, CPU PPT @142w, TDC @95a, EDC @140a, CPU Scaler @auto , CPU Boost @150 mhz

vs

Exact same settings but EDC @3a
Attached Thumbnails
Click image for larger version

Name:	105W Default vs EDC @3.jpg
Views:	28
Size:	155.2 KB
ID:	357492  


SeaSonic X750 Gold 750W
MSI X370 XPOWER Gaming Titanium | Ryzen 5 3600 2010SUS @ 4400 mhz @ 1.325v (prime95 load)
Viper Steel Series PVS416G413C9K @ 3800/1900 mhz | 1.52v | 14-15-14-14-28-42-252-16-1T
Asus GTX 780 DCII OC @ 1332/3522 mhz | 1.3v | Samsung 960 EVO 500GB
EK-FB MSI X370 XPower RGB Monoblock 1/2" ID | Swiftech D5 MCP655 | EK-XRES 100
Alphacool NexXxoS UT60 280 | 4 x Scythe GT AP-15 @ 5v
Thermochill PA120.3 | 1 x NF-A12x15 | 2 x ML120 | PWM

Last edited by mongoled; 06-29-2020 at 02:21 AM.
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post #4 of 11 (permalink) Old 06-29-2020, 02:10 AM - Thread Starter
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105W_EDC @3_LLC-Auto vs LLC-Mode2

Comparison of

CPU vCore Auto, CPU LLC Auto, BCLK 106.875 mhz, CPU PPT @142w, TDC @95a, EDC @140a, CPU Scaler @auto , CPU Boost @150 mhz

vs

Exact same settings but EDC @3a
Attached Thumbnails
Click image for larger version

Name:	105W_EDC @3_LLC-Auto vs LLC-Mode2.jpg
Views:	18
Size:	149.9 KB
ID:	357494  


SeaSonic X750 Gold 750W
MSI X370 XPOWER Gaming Titanium | Ryzen 5 3600 2010SUS @ 4400 mhz @ 1.325v (prime95 load)
Viper Steel Series PVS416G413C9K @ 3800/1900 mhz | 1.52v | 14-15-14-14-28-42-252-16-1T
Asus GTX 780 DCII OC @ 1332/3522 mhz | 1.3v | Samsung 960 EVO 500GB
EK-FB MSI X370 XPower RGB Monoblock 1/2" ID | Swiftech D5 MCP655 | EK-XRES 100
Alphacool NexXxoS UT60 280 | 4 x Scythe GT AP-15 @ 5v
Thermochill PA120.3 | 1 x NF-A12x15 | 2 x ML120 | PWM

Last edited by mongoled; 06-29-2020 at 02:22 AM.
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post #5 of 11 (permalink) Old 06-29-2020, 02:10 AM - Thread Starter
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105W_EDC @3_LLC-Auto_CPU-Scaler-10X vs LLC-Mode2

Comparison of

CPU vCore Auto, CPU LLC Auto, BCLK 106.875 mhz, CPU PPT @142w, TDC @95a, EDC @3a, CPU Scaler @10X, CPU Boost @150 mhz

vs

Exact same settings but LLC Mode 2
Attached Thumbnails
Click image for larger version

Name:	105W_EDC @3_LLC-Auto_CPU Scaler-10X vs LLC-Mode2.jpg
Views:	19
Size:	150.6 KB
ID:	357496  


SeaSonic X750 Gold 750W
MSI X370 XPOWER Gaming Titanium | Ryzen 5 3600 2010SUS @ 4400 mhz @ 1.325v (prime95 load)
Viper Steel Series PVS416G413C9K @ 3800/1900 mhz | 1.52v | 14-15-14-14-28-42-252-16-1T
Asus GTX 780 DCII OC @ 1332/3522 mhz | 1.3v | Samsung 960 EVO 500GB
EK-FB MSI X370 XPower RGB Monoblock 1/2" ID | Swiftech D5 MCP655 | EK-XRES 100
Alphacool NexXxoS UT60 280 | 4 x Scythe GT AP-15 @ 5v
Thermochill PA120.3 | 1 x NF-A12x15 | 2 x ML120 | PWM

Last edited by mongoled; 06-29-2020 at 02:23 AM.
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post #6 of 11 (permalink) Old 06-29-2020, 02:10 AM - Thread Starter
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SeaSonic X750 Gold 750W
MSI X370 XPOWER Gaming Titanium | Ryzen 5 3600 2010SUS @ 4400 mhz @ 1.325v (prime95 load)
Viper Steel Series PVS416G413C9K @ 3800/1900 mhz | 1.52v | 14-15-14-14-28-42-252-16-1T
Asus GTX 780 DCII OC @ 1332/3522 mhz | 1.3v | Samsung 960 EVO 500GB
EK-FB MSI X370 XPower RGB Monoblock 1/2" ID | Swiftech D5 MCP655 | EK-XRES 100
Alphacool NexXxoS UT60 280 | 4 x Scythe GT AP-15 @ 5v
Thermochill PA120.3 | 1 x NF-A12x15 | 2 x ML120 | PWM
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post #7 of 11 (permalink) Old 06-29-2020, 02:10 AM - Thread Starter
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SeaSonic X750 Gold 750W
MSI X370 XPOWER Gaming Titanium | Ryzen 5 3600 2010SUS @ 4400 mhz @ 1.325v (prime95 load)
Viper Steel Series PVS416G413C9K @ 3800/1900 mhz | 1.52v | 14-15-14-14-28-42-252-16-1T
Asus GTX 780 DCII OC @ 1332/3522 mhz | 1.3v | Samsung 960 EVO 500GB
EK-FB MSI X370 XPower RGB Monoblock 1/2" ID | Swiftech D5 MCP655 | EK-XRES 100
Alphacool NexXxoS UT60 280 | 4 x Scythe GT AP-15 @ 5v
Thermochill PA120.3 | 1 x NF-A12x15 | 2 x ML120 | PWM
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post #8 of 11 (permalink) Old 06-29-2020, 02:11 AM - Thread Starter
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SeaSonic X750 Gold 750W
MSI X370 XPOWER Gaming Titanium | Ryzen 5 3600 2010SUS @ 4400 mhz @ 1.325v (prime95 load)
Viper Steel Series PVS416G413C9K @ 3800/1900 mhz | 1.52v | 14-15-14-14-28-42-252-16-1T
Asus GTX 780 DCII OC @ 1332/3522 mhz | 1.3v | Samsung 960 EVO 500GB
EK-FB MSI X370 XPower RGB Monoblock 1/2" ID | Swiftech D5 MCP655 | EK-XRES 100
Alphacool NexXxoS UT60 280 | 4 x Scythe GT AP-15 @ 5v
Thermochill PA120.3 | 1 x NF-A12x15 | 2 x ML120 | PWM
mongoled is offline  
post #9 of 11 (permalink) Old 06-29-2020, 02:11 AM - Thread Starter
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Reserved 9

SeaSonic X750 Gold 750W
MSI X370 XPOWER Gaming Titanium | Ryzen 5 3600 2010SUS @ 4400 mhz @ 1.325v (prime95 load)
Viper Steel Series PVS416G413C9K @ 3800/1900 mhz | 1.52v | 14-15-14-14-28-42-252-16-1T
Asus GTX 780 DCII OC @ 1332/3522 mhz | 1.3v | Samsung 960 EVO 500GB
EK-FB MSI X370 XPower RGB Monoblock 1/2" ID | Swiftech D5 MCP655 | EK-XRES 100
Alphacool NexXxoS UT60 280 | 4 x Scythe GT AP-15 @ 5v
Thermochill PA120.3 | 1 x NF-A12x15 | 2 x ML120 | PWM
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post #10 of 11 (permalink) Old 06-29-2020, 02:23 AM - Thread Starter
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Will add more data,

Want to test with vCore offsets also.

What I learned in general.

LLC plays a huge role in normalizing CPU clocks when all threads are loaded with "heavy workloads" when using the EDC bug.

When the EDC bug is not induced, CPU clocks are all normalised automatically when all threads are loaded with "heavy workloads".

You can use EDC bug with LLC on auto and will downclock "weaker" cores automatically when using "heavy workloads".

Using different levels of LLC with the EDC bug you can effect by how much the weaker cores downclock



Data with regards to CPU Scaler is to show the effects on vCore, and current.

I only provided thermal data for the worse case scenario, that is Prime95 Small FFTs.

All other tests remained below 76C on my cooling setup.

Of course, this data is relevant to my PC which is using an x370 motherboard.

Any other data can be added by whoever wishes.

If you can keep it in the same format would be great



*heavy workloads, AVX2, FMA3 etc etc

SeaSonic X750 Gold 750W
MSI X370 XPOWER Gaming Titanium | Ryzen 5 3600 2010SUS @ 4400 mhz @ 1.325v (prime95 load)
Viper Steel Series PVS416G413C9K @ 3800/1900 mhz | 1.52v | 14-15-14-14-28-42-252-16-1T
Asus GTX 780 DCII OC @ 1332/3522 mhz | 1.3v | Samsung 960 EVO 500GB
EK-FB MSI X370 XPower RGB Monoblock 1/2" ID | Swiftech D5 MCP655 | EK-XRES 100
Alphacool NexXxoS UT60 280 | 4 x Scythe GT AP-15 @ 5v
Thermochill PA120.3 | 1 x NF-A12x15 | 2 x ML120 | PWM

Last edited by mongoled; 06-29-2020 at 11:31 AM.
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