AMD Curve Optimizer any guides / experience

[jesdals]

I registered here specifically in order to present my problem with my processor and I'm not good with OC I just try for the first time to OC my CPU

First of all I just need the best temps and best low voltage to my CPU keeping the performance at the best as possible I don't need crazy numbers.

The first Issue when I set PBO to manual and add PPT and TDC and EDC and enable Curve and making It -16 and enable XMP My PC It work but Restart randomly.

The Second Issue i found the bench in CPU Z give me the same result with XMP or without XMP so by default my ram run at 2666 and with XMP 3600 no change In CPU Z score but I can see the bench give me little high score with 2666 !!!

Also my PC Restart randomly more with XMP Enabled. It restarts in both but more with XMP.

I have latest Bios Update already Installed.

Any advise ?

Its proberly "safer" or more correct to start with tuning the memory settings before you start with the curve settings - theres guides arround 1usmus in here https://www.techpowerup.com/download/ryzen-dram-calculator/

B450 chipset will be less flexible with 2x16 gb modules than others using 8gb e.g. with Samsung B-die so expect results to be lesser than those with these

You can read about AMD memory settings here as well https://www.techpowerup.com/review/neo-forza-faye-ddr4-5000-2x-8gb/

When memory and Infinity fabric is stable - then its time for PBO and Curve optimization - would actually play around with the PBO first and then ad the Curve settings last

 

[Haytham]

Its proberly "safer" or more correct to start with tuning the memory settings before you start with the curve settings - theres guides arround 1usmus in here https://www.techpowerup.com/download/ryzen-dram-calculator/

B450 chipset will be less flexible with 2x16 gb modules than others using 8gb e.g. with Samsung B-die so expect results to be lesser than those with these

You can read about AMD memory settings here as well https://www.techpowerup.com/review/neo-forza-faye-ddr4-5000-2x-8gb/

When memory and Infinity fabric is stable - then its time for PBO and Curve optimization - would actually play around with the PBO first and then ad the Curve settings last

Thank you so much for this information and I will definitely read all of this.

 

[jesdals]

Found this Der 8auer OC guide - found his PBO settings interesting

 

[jesdals]

Did some testing and found that raising EDC above TDC gave lesser single and multicore performance

running with EDC at 115 gave 10 points more in single thread performance and about 100 points in multiperformance - so with my setup it did not bring better performance

 

[jesdals]

New AMD Chipset driver - seems to down step all core boost clocks - done testing for 2 days and it seems that PBO boost is down with 100-150MHz compared with earlier versions

Article Number
RN-RYZEN-CHIPSET-4-03-03-431

Release Highlights​

• Fixed PSP driver downgrade issues
• Fixed some text on Russian OS language pack

Known Issues​

• Sometimes custom install fails to upgrade to latest drivers.
• Text alignment issues may be seen on Russian language.
• Manual system restart required on Non-English OS after the installation is complete.
• Windows® Installer pop-up message may appear during the installation.
• Uninstall summary log may incorrectly show uninstall status as fail on non-English OS.
• May observe a pop-up message "AMD Chipset Software is not responding" when the installer is launched and UI screen is clicked.

 

[Ferrum Master]

Don't put EDC past 140A

It will disable boost ie voltages past 1.4V. It is a known issue.

 

[jesdals]

Don't put EDC past 140A

It will disable boost ie voltages past 1.4V. It is a known issue.

Hmm have been testing and running with these settings for a while - but setting 245/125/140 did give better results single and multi core!

Will test for stability and results with current bios and settings - thanks Ferrum Master!

 

[Ibizadr]

Hmm have been testing and running with these settings for a while - but setting 245/125/140 did give better results single and multi core!

Will test for stability and results with current bios and settings - thanks Ferrum Master!

I don't believe in that since the problem with Edc 140 was related to a bios update and not to a chipset driver update. You got better results because maybe you keep your cpu not to hot compared to other settings you use in past.

 

[jesdals]

Well results seems better

 

[Makaveli]

I don't believe in that since the problem with Edc 140 was related to a bios update and not to a chipset driver update. You got better results because maybe you keep your cpu not to hot compared to other settings you use in past.

This EDC 140 issue is due to the new bios not chipset drivers. I have downloaded the chipset drivers and will be installing over the weekend to see what it does.

 

[MrDweezil]

Don't put EDC past 140A

It will disable boost ie voltages past 1.4V. It is a known issue.

How long has this been the case? And how did you find out about it?

 

[Ferrum Master]

How long has this been the case? And how did you find out about it?

Saw it somewhere on Reddit and overclockers forum also.

It applies only to the latest AGESA V2 PI 1.2.0.6b, I was using betas, so I saw something weird for few weeks already.

 

[Ibizadr]

Saw it somewhere on Reddit and overclockers forum also.

It applies only to the latest AGESA V2 PI 1.2.0.6b, I was using betas, so I saw something weird for few weeks already.

After 1.2.0.3c Edc past 140 don't boost your cpu higher than before.

After I give a try to the last chipset update I'm rolling it back since I experience yesterday a weird shutdown and on boot ask me to go to bios like I change something and today I got an hard crash (first one this build with 10months) need to shutdown on power and after that no boot. Need to change ram slots (ram led bug on motherboard) and clear cmos. Tomorrow I will rolling it back. AMD messing a lot with latests bios and chipset updates.

 

[Dia01]

I can't seem to get too much more past 670 single core score CPUZ. Raising the PBO limits have no effect, thinking just a combination of my chip and the X570M shitty VRM's...

PBO Settings:
PPT - 142W
TDC - 95A
EDC - 100A
1st four best cores: -10
Next best 4 cores: -15
All remaining cores: -20

 

[jesdals]

@Dia01 Well considering that your Infinity fabric is 1800 and compared with the rest I think your scores is pretty fine. One thing your curve setting at -10 and -15. I found that the best cores could take the lowest value, so in your case I would try setting the "bad cores" at -15 and the god cores at -20 and the best at -25.

 

[Dia01]

"bad cores" at -15 and the god cores at -20 and the best at -25 not stable for me.

Tried "bad cores" at -10 and the god cores at -15 and the best at -20, slightly worse score than before. I think I'm where it is likely to be in all honesty.

 

[tjtremor999]

do we have any programs available outside corecycler for testing max boost freq for curve optimizer ?

corecycler is good up to around ~4925, outside of that there's still up to 5100 boost for background apps or games

yesterday had CO-24 pass corecycler 8h but of course just 2mins of Destiny2 5.1 boost for few seconds and got a nice bsod.

*never mind, heaven benchmark pushes those high freq randomly I'll loop that overnight

 

[Final_Fighter]

"bad cores" at -15 and the god cores at -20 and the best at -25 not stable for me.

Tried "bad cores" at -10 and the god cores at -15 and the best at -20, slightly worse score than before. I think I'm where it is likely to be in all honesty.

View attachment 243982

i found that setting the power limit to "motherboard" in the bios works best for max cpu performance.

 

[Dia01]

i found that setting the power limit to "motherboard" in the bios works best for max cpu performance.

My motherboard pre-configured limits are:
PPT - 142W
TDC - 95A
EDC - 140A

I've set the limits to 'Motherboard' and also set manually, I've found no difference raising EDC. Lowering EDC to 100A seems to be the best balance for some reason.

 

[freeagent]

Honestly, I used Linpck Xtreme to find the max the CPU will put out, so for me running that program with PBO and APE enabled, I noticed the CPU will do 225w PPT. It will do 153 TDC and 180 EDC, so thats what I set my limits to, and played with CO to get a decent tune going... its worked for me except in Core Cycler. But in absolutely every benchmark in Benchmate, every stress test, daily use, games, time.. It has been cock solid. But core cycler fails pretty hard.. To pass CC I have to dial things back quite a bit.. the only program. Grrr.. gets me fired up every time

 

[tabascosauz]

It has been cock solid.

I dunno if I would daily something that fails default corecycler, but passing default config is good enough 99% of the time. Won't be crashing on you. Thoroughly testing is just for the extra peace of mind since boost is inherently unpredictable.

For default config my preferred cores are -5/-8 and most of the 10 others up to -25 or -30. For truly stable, it's -2/-5 and most at -20 or so.

For non-occasional crashing you'd need like -30 on cores that have no business being over -10

 

[DoLlyBirD]

How do my settings look, I'm completely new to PBO/CO overclocking though after messing around in the bios tonight, these settings look to be the best I have gotten in CPU-Z bench so far, temps all seem to be in check, RAM at 4000mhz and 1:1 IF clock, Ryzen 5500 CPU and some TeamGroup RAMK which I believe is Samsung B-die, though inconclusive

 

[Dia01]

How do my settings look, I'm completely new to PBO/CO overclocking though after messing around in the bios tonight, these settings look to be the best I have gotten in CPU-Z bench so far, temps all seem to be in check, RAM at 4000mhz and 1:1 IF clock, Ryzen 5500 CPU and some TeamGroup RAMK which I believe is Samsung B-die, though inconclusive

Have you played around with the Boost Clock Override?

 

[freeagent]

I dunno if I would daily something that fails default corecycler

My 5600X was easy

I got 4800 CC stable, default anyways.. 5900X is gonna take a bit.. I did start, have a few hours in.. didn't really like what I saw lol.. might as well just run it at stock

 

[DoLlyBirD]

Have you played around with the Boost Clock Override?

if it's the setting I think you're on about, my motherboard/CPU only lets me set 200mhz, so default boost clock of 4250 goes up to 4450mhz