[SOLVED] Asking about OC on R5 3600 non X

JaAntonio

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Nov 13, 2019
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Hello everyone,
Sorry for my english, starting from there :kikou:
I run an R5 3600 in the mobo Asus ROG B450-E (I know it's kinda strange to OC in this chipset) so. I have it clocked at 4.225Ghz at 1.45V, and i will ask to you guys, if it is too much, if its okay, or could be lower.
Temps are good in a 240 AIO H100x from corsair (65ºC max). Paired with a 3600Mhz kit form corsair CL16.
Also if u could tell me if the ryzen 5 3600 bottlenecks gtx 1080ti, i think not but i play at 1080p and the gpu gives me around 130fps in most games, which i guess is good.

The PC itself:

-CPU: Ryzen 5 3600 4.225Ghz 1.45V
-Mobo: Asus ROG Strix B450-E
-RAM: Corsair Vengance RGB Pro DDR4 3600 16Gb 2x8Gb CL16 1.35v
-Cooler: Corsair Hydro H100x
-GPU: MSI GTX1080Ti Gaming X Trio 11Gb
-Case: Thermaltake S500 Black (All fans replaced by Corsair ML120mm fans)
-PSU: EVGA BQ850W
 
Solution
Hello everyone,
Sorry for my english, starting from there :kikou:
I run an R5 3600 in the mobo Asus ROG B450-E (I know it's kinda strange to OC in this chipset) so. I have it clocked at 4.225Ghz at 1.45V, and i will ask to ...
That is pretty high for a fixed VCore voltage. But it's probably needed at heavy loads because power delivery isn't going to be very good from the 4 phase VRM on that motherboard. Don't be fooled by the doubled inductors on each phase.

You really want voltage under heavy loads...something like running Prime 95, AVX disabled, medium-large FFT...to be around 1.375 or less, 1.4 absolute max. 1.325 is bandied about a lot, but that's a very misunderstood number. Different CPU's will have different...
You could try and overclock your cpu to 4.3 Ghz and run a stress test, and if temps stay low then overclock again and run another stress test. If your CPU doesnt throttle you could go to 4.5 ghz, and farther and you could risk BSODS and CPU throttling
 
Thanks for the advice,
i guess i need to increase voltage if needed for stability, but 4.3 isn't the deadline for ryzen zen 2 cpus? 4.5Ghz would be so good with this CPU.

Edit:
Also the b450 i dont think i can push it much more, ill check vrm temps later when i back home
 
Hello everyone,
Sorry for my english, starting from there :kikou:
I run an R5 3600 in the mobo Asus ROG B450-E (I know it's kinda strange to OC in this chipset) so. I have it clocked at 4.225Ghz at 1.45V, and i will ask to you guys, if it is too much, if its okay, or could be lower.
Temps are good in a 240 AIO H100x from corsair (65ºC max). Paired with a 3600Mhz kit form corsair CL16.
Also if u could tell me if the ryzen 5 3600 bottlenecks gtx 1080ti, i think not but i play at 1080p and the gpu gives me around 130fps in most games, which i guess is good.

The PC itself:

-CPU: Ryzen 5 3600 4.225Ghz 1.45V
-Mobo: Asus ROG Strix B450-E
-RAM: Corsair Vengance RGB Pro DDR4 3600 16Gb 2x8Gb CL16 1.35v
-Cooler: Corsair Hydro H100x
-GPU: MSI GTX1080Ti Gaming X Trio 11Gb
-Case: Thermaltake S500 Black (All fans replaced by Corsair ML120mm fans)
-PSU: EVGA BQ850W


Most people feel 1.45v on a 24/7 overclock is too high and try to keep it at 1.325v or lower. The 1080ti will not be bottle-necked with a 3600 at 1080 or 1440p.
 
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@dorsai Okay, i see. You sugguest to me to lower the Voltage, right? Would be fine 1.375V? or even lower?.

@TheMaster122 I could try to go even higher than my current CPU speed to try silicon lottery and see the performance, but as says Mr.Dorsai lower voltage for 24/7 is better.
 
Hello everyone,
Sorry for my english, starting from there :kikou:
I run an R5 3600 in the mobo Asus ROG B450-E (I know it's kinda strange to OC in this chipset) so. I have it clocked at 4.225Ghz at 1.45V, and i will ask to ...
That is pretty high for a fixed VCore voltage. But it's probably needed at heavy loads because power delivery isn't going to be very good from the 4 phase VRM on that motherboard. Don't be fooled by the doubled inductors on each phase.

You really want voltage under heavy loads...something like running Prime 95, AVX disabled, medium-large FFT...to be around 1.375 or less, 1.4 absolute max. 1.325 is bandied about a lot, but that's a very misunderstood number. Different CPU's will have different requirements and that was garnered by looking at one particular 3800X CPU's FIT data. Every CPU has it's FIT data determined at final binning and a 3600, due to it's unique silicon, will be quite different from a 3800X.

IMO overclocking to achieve an arbitrary clock speed is pointless for gaming anyways. Especially since, as noted by Dorsai, when gaming at 1440p a 3600 shouldn't be the bottleneck...even left all stock. And while a 1080ti will still be the bottleneck at that resolution that's the minimum to game with it since...why pay the price for one in the first place?
 
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Solution
@dorsai Okay, i see. You sugguest to me to lower the Voltage, right? Would be fine 1.375V? or even lower?.

I would suggest stability testing to achieve the lowest possible voltage at any given clock speed...for me personally anything over 1.35v for a 24/7 overclock is the limit...others may be comfortable going higher. My reasoning is these CPU's are still squeaky new and we as a group of users still have no idea how the updated 7nm process will handle long term high voltages. These chips are so new they are still working out BIOS issues and Windows power plan settings.

As drea.drechsler just pointed out the choice of motherboard plays a critical role in overclocking results. A lower quality motherboard with a correspondingly lower quality VRM will likely not deliver the same CPU stability at a given voltage as a 400-500 dollar motherboard with a massive cool running VRM. Many CPU reviews use highend motherboards and could mislead people to believe every CPU should hit certain clocks at a certain voltage when that's simply not the case.
 
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I research about the mobo before, thats why i was concerned, it's 4 phase and most people don't know that, it's not to OC properly, just small tweaks. The cpu was stable at 1.375V but i get it up to reach 4.3Ghz but as you said i think isn't worth it. So the 1080Ti is a good pair with this CPU? the IPC is strong and cheap, so i think yes?


Edit: I agree with you @dorsai and @drea.drechsler, you are helping me a lot

Edit 2: I choose that mobo cause when i paired it with R5 2600 originally, i got it for just 90EUR in a sale, new. Then i have some stutter in general cause i assume it struggles with the 1080Ti and i returned the R5 2600 after i upgrade the BIOS to the new Zen 2.
 
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Okay, thank you for your answers and help. I will try PBO so to see voltages or i manually change it to lower voltage for long use.

Sorry for take your time guys but i put to much love in this build and the longer it's lasts, better <3
Best regards 😉
 
Okay, thank you for your answers and help. I will try PBO so to see voltages or i manually change it to lower voltage for long use.

Sorry for take your time guys but i put to much love in this build and the longer it's lasts, better <3
Best regards 😉
If you want to maximize performance with PBO, some things to check: 1st, latest BIOS (AGESA 1004b or 1003abba at least) and latest AMD chipset drivers obtained from AMD web site. Even if you'd previously installed the chipset drivers, do a re-install after updating BIOS. And do run the AMD Ryzen Balanced power plan leaving minimum processor state at 99%. With Ryzen, the processor controls CPU power management and that ensures the OS doesn't interfere so the processor can kick back voltage at idle even though you may not see it in monitoring software.

Also check for following settings in BIOS to be enabled:
AMD Cool-n-Quiet - ENABLED
CPPC - ENABLED
CPPC Preferred Cores - ENABLED
Advanced C-States - ENABLED

They may be called something slightly different in Asus BIOS. Don't leave them in AUTO or DEFAULT assuming the mobo mfr. knows what's best.

I find my system runs best with PBO when I set a slight positive VCore offset (not over-ride) voltage and moderate LLC curve. At light bursty loads (typical of gaming, btw) it helps the processor boost more frequently to rated boost clocks since VCore stays high. It still drops back under 1.35 volts under heavy loads...to almost 1.30 volts in that Prime 95 load test I said earlier.

EDIT add: oh yeah, and also make sure you've updated to Windows10 1909. It has scheduler optimizations for CPU topology that are good for Ryzen CPU's.
 
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