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9800X3D OC Limits?

ir_cow

ir_cow

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Call me lazy but can anyone give me the quick and dirty details of max Core / SoC voltage, clocks and temperature since these 9000 X3Ds are now overclockable.

Thanks.
 
I'm doing 5.575 GHz on 1.24 V. Temps are fine under 60.
 
I can run at 5.6 ghz at 1.26v - aircooled so temps get spicy @90C... 5.45 with PBO offset is much cooler.

My chip is actually unstable at 6000 1:1 - it will hard lock in POE2, but is rock stable at 2200 FCLK 6600 with 1:2 ram divider o.O
 
I assume nothing is different with the SoC?

phanbuey said:
My chip is actually unstable at 6000 1:1 - it will hard lock in POE2, but is rock stable at 2200 FCLK 6600 with 1:2 ram divider o_O
Click to expand...
That would be cool if I was able to do 6600 1:1.
 
ir_cow said:
I assume nothing is different with the SoC?
Click to expand...
SOC 1.21v @ 2000 FCLK / 6000 1:1, 1.29v @2133FCLK and 6400 1:1, 1.29v @2200FCLK / 6600 1:2 - no post at 2266 FCLK / 6800
 
Last edited:
I am mostly looking for core voltage so I dont kill the CPU lol.

Seems like SoC and IMC are the same as the none-x3d
 
For me I find the max the socket will allow the CPU to have with PBO enabled, that means running heavy shit. When you figure out how much power you can use, set your curve to that with boost override maxed. Then do it again to see if it uses moar power, then set your limit to that and do it again.

Different people will give you different ways to test for stability, but this setup has been stable for like 4 years running like this.


Screenshot 2025-02-11 201641.png
 
@freeagent I'm just going to set a fix frequency and voltage for the test bench. No PBO for me :)

Anyways thanks everyone for the replies. I'll stick with 1.25v for now
 
ir_cow said:
@freeagent I'm just going to set a fix frequency and voltage for the test bench. No PBO for me :)

Anyways thanks everyone for the replies. I'll stick with 1.25v for now
Click to expand...
Well.. in that case.. I would go until it reboots pretty much..

Edit:

Just like old Intel..
 
ir_cow said:
@freeagent I'm just going to set a fix frequency and voltage for the test bench. No PBO for me :)

Anyways thanks everyone for the replies. I'll stick with 1.25v for now
Click to expand...

Mind following up with settings and process? Im in it for curiosities sake.

Or anyone else for that matter. Looks like max out is around 5.6.
 
ir_cow said:
I am mostly looking for core voltage so I dont kill the CPU lol.

Seems like SoC and IMC are the same as the none-x3d
Click to expand...
1.30v
PBo-2.0 V/F curve is up to 1.35v
According to research.
Should be able to easily reach 5.7ghz with these. At least from what I've seen Not at this forum.

Rule of thumb, frequency and v-core goes up, your goal is to lower temps.

GL
 
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Well it took me a extra week to get it setup. Lots of OT at work. Already at 40hr with two days left :)

Anyways, I decided to settle on 5.2Ghz for all-core because is that what the AMD specs pages says "up to" and what I get when running R23. After all this is just for memory reviews. 99% of users don't OC there CPUs.

I don't know why I was thinking this CPU has a single core boost of 5.7GHz. Must have confused it with Intel.
 
ir_cow said:
Well it took me a extra week to get it setup. Lots of OT at work. Already at 40hr with two days left :)

Anyways, I decided to settle on 5.2Ghz for all-core because is that what the AMD specs pages says "up to" and what I get when running R23. After all this is just for memory reviews. 99% of users don't OC there CPUs.

I don't know why I was thinking this CPU has a single core boost of 5.7GHz. Must have confused it with Intel.
Click to expand...
Several people have OCed these to 5.5 to 5.7ghz and even with some under-volting. But I think it may be by per corr basis.

IE:
Core 0 and 1 at 5.7ghz
Core 2 and 3 5.5ghz
Core 4 and 5 5.2ghz
Core 6 and 7 5.2ghz.

Which would give some decent performance lift I think.

PBO +200 would be 5.4ghz right? Can't get it there??
 
I haven't really tried higher once I realized 5.2 is stock for highest core.
 
you can gain ~150-200MHz with PBO and/or save 5W with VSoC undervolting... don't get me wrong i love overclocking and i overclocked every single CPU and GPU i had since ~20 years... but there is literally nothing to overclock nowadays.
visual comparison between Stock and PBO max 200Mhz -30 CO Core Clock:
****************************************************
******************************************************
set the power and current limit to 1000W/A and enjoy your games instead of trial and error idle crashes just to go from 403 FPS to 410 FPS.
 
I not having issues with the suggest overclock, but how many people are actually doing this? I don't think it represents the average user just enabling XMP/EXPO and off they go.

Maybe in the OC section I'll increase it
 
Solaris17 said:
Mind following up with settings and process? Im in it for curiosities sake.

Or anyone else for that matter. Looks like max out is around 5.6.
Click to expand...
Hey boss, sorry I missed you.

I am using the same settings as I used for my 5900X.

PPT/TDC/EDC - 260/170/200 all core negative curve of -25, and boost override to +200.

Sure would be sweet if I could ride that -50 CO.. or 40.. or even 30 haha :D
 
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