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post #1 of (permalink) Old 07-17-2019, 12:17 PM - Thread Starter
Heuchler
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[der8auer] Per CCX overclocking

RYZEN 3000 OC per CCX rather than all-core

Update: Extreme Caution - doesn't seem worth risking your CPU over 200 or 300 MHz

Quote: Originally Posted by The Stilt View Post
In short: Unless you are certain that you are using manual voltage mode (VRM controller, from the bios) do not use the application ("worktool").

It is a CPU killer if the VRM controller is running in offset-mode.

I tried it with the voltage mode set to offset (or "Auto") and setting 4200MHz for CCX0/1 and 4050MHz for CCX2/3 resulted in 1.405V actual Vout during Cinebench R20.

The voltages during the default OC-Mode remain sane, regardless of the VRM controller operating mode.
This hack however causes the voltage governor to go insane.

I have no idea why someone thought it would be a good idea to release this to the public...



updated with AthyraE resuts over at reddit [Dphotog for pointing it out]
https://old.reddit.com/r/Amd/comment...mmend_massive/

4 CCXs stable at 4525, 4500, 4350, and 4325 MHz at 1.38V

CINEBENCH R15 and R20 results @ 4.3GHz vs per CCX OC
Attached Images
         

Overclocking History (Click to show)
Intel 386DX/16 @ 20 MHz
CX486SLC/50 @ 50 MHz
AM486DX2/80 @ 100 MHz
AM486 DX4-100 @ 120 MHz
AK5x86-P75 [email protected] 160 MHz
Pentium 90 @ 120 Mhz
IBM 6x86L P166+ [email protected] 160 MHz
Celeron 300a @ 454 MHz
Pentium 3 700 @ 933 MHz
Athlon XP 1400+ @ 1600 MHz
Athlon XP 1800+ @ 2088 MHz
Athlon XP 2500+ @ 2200 MHz
Athlon 64 3000+ @ 2603 MHz
Athlon X2 BE2300 @ 1900 MHz
Athlon X2 4200+ @ 2210 MHz
Athlon X2 5000+ @ 2600 MHz
Core 2 Duo E4300 @ 3000 MHz
Core 2 Duo E6750 @ 3600 MHz
Core 2 Duo E8400 @ 4000 MHz
Xeon C2Q L5408 @ 3200 MHz
Xeon C2Q X5450 @ 3300 MHz
Xeon C2Q E5440 @ 3400 MHz
Xeon C2Q E5450 @ 3600 MHz
Phenom2 X4 B50 @ 3700 MHz
Phenom2 X6 1045T @ 4050 MHz
Core i5-2500K Sandy @ 4500 MHz
X5650 6-Core Westmere @ 3982 MHz
AMD FX 8320E Black Edition

FX-8320E @4.5GHz, X5650 @ 4.0GHz, X6 1045T @4.0GHz, i7 [email protected]
Thinkpad T420p with i7-2720QM overclocked because this is OCN

Last edited by Heuchler; 07-23-2019 at 02:10 PM.
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