I just want max performance, I have really good cooling. I saw skatterbencher settings for running 5.5GHz or something he claims, I figure those numbers are too high and his mobo is much better, so before I fry my chip I thought I should ask for your expertise. What do I put for those PBO limits? Thanks in advance

Wondering if anyone has experience with using PBO and curve optimizer with the 7800x3d. I’ve went-30 nothing happens. Boost clock offset nothing happens. Manual Thermal limit nothing happens.

I spent hours messing with these settings and always get 18500-18600 in cinebench. 18605 was my highest. Pulls around 87w. 4.919mhz max boost.

I’ve seen some say this is normal but watching online people are making huge drops in watts.

If I’m stupid just tell me. Coming from 8700k. That’s the last year I built a pc. Never had amd. Thanks.

New AMD user here. Upgraded from a 9900k to a 7800x3D. I have experience overclocking the Intel platforms from various generations. Very new to AMD stuff.

Heard PBO Curve editor could potentially squeeze out some extra performance by undervolting... but will I really notice a real world difference if I don't have problems with temps?

Don't really want to have a run in with messing with system stability for a 1-2% gain in overall performance/fps in games.

I use a Noctua NH-D15 and on Cinebench stress tests I hit max 70C on all cores at stock. No PBO set. Only thing set is EXPO for RAM

Hi guys, just today I received my B650 Aorus Elite AX, 7800x3d and 32gb 6000mhz cl30 ram.

I have some pbo adjustments already made with EXPO enabled and FCLK 2133 and 6200mhz cl30(haven't had time to do anything else yet).

I had 10x, clock +200, all cores -30 co.

SoC set to 1.20v

In gaming I received these results, are these okay or I should be worried about cpu-s health?

If I've done something stupid then let me know please, im in learning phase with amd cpus and especially x3d.

I have have done lots of research and tinkering to cool the 7800X3D with little to no performance loss in gaming and everyday workloads. Idle temp of 43C and gaming temp of 65C - 70C.

Specs:

• AMD 7800X3D

• 32 GB G.Skill Flare X5 6000 Mhz with EXPO II

• Asus ROG Strix B650E-F Gaming WiFi

• ASRock AMD Radeon RX 7900 XT Phantom Gaming 20GB OC

• Lian Li O11 Air Mini

• 9 x Thermalright TL-C12PRO 120mm

• Thermalright Phantom Spirit 120 SE

• Corsair RM1000e PSU

BIOS Settings under Advanced:

• SOC Voltage - 1.2V

• PPT - 85000 mW or 85 W

• TDC - 75000 mW or 75 W

• EDC - 150000 mW or 150 W

• PBO - Each core set to -25

• Thermal Llimit - 85

• Medium Load Boostit - DIsabled under AI Tweaks

Hey everyone,

I’ve been fine-tuning my 7800X3D on an ASUS X670-Pro motherboard. The system runs with good thermals, and despite what I believe is a solid setup, my CPU refuses to boost past ~5050MHz — even with all the right BIOS and Windows-level optimizations in place.

System Specs

CPU: Ryzen 7 7800X3D
Motherboard: ASUS X670-Pro (latest BIOS)
RAM: 32GB Corsair Vengeance Pro DDR5-6400 A-Die (running stable at 6200MT/s CL32, 1.35v, SOC 1.25v)
OS: Clean install of Windows 11, debloated with only essential services running
Power Plan: Balanced

BIOS Settings (All under AI Tweaker)

• AI Overclock Tuner: DOCP I (DDR5-6400)

• Memory Frequency: Manually set to 6200MT/s

• DRAM Voltage: 1.35V

• SOC Voltage: 1.25V

• Precision Boost Overdrive: Manual

  • PPT: 210W

  • TDC: 145A

  • EDC: 190A

  • Boost Override: +200MHz

  • Scalar: Auto or 1X

  • Curve Optimizer: Per core (-5 to -20 based on preferred cores)

• BCLK: 100.00 MHz

• Spread Spectrum: Disabled

• FCLK: Tried fixed at 2000, 2033, and 2067

• Memory Context Restore: Disabled

• Power Down Enable: Disabled

Observations

• Cinebench R23/R24 (single core) never pushes above 5040–5100MHz

• Cinebench doesn’t consistently use one core — it fluctuates

• I’ve manually tested affinity per core — some cores did hit ~5250MHz before

• HWInfo shows effective clock rarely reaching theoretical boost

• Temps stay within safe range (<85°C multi, <65°C single)

• No background apps like SignalRGB, Armoury Crate, etc. running

• Tried resetting BIOS, clean Windows, and removing all curve/PBO settings

• CPU-Z BCLK fluctuates slightly (~99.95–100.1) but HWINFO is steady

What I’m Trying to Understand

• Why did I previously see 5200+ MHz but now capped closer to 5050?

• Could Cinebench be a poor representation of true boosting?

• Am I missing a Windows setting or subtle BIOS toggle?

TL;DR
Clean Windows 11, 7800X3D, PBO + CO (-5 to -20), +200 boost override, stable 6200 MT/s RAM. Previously saw 5250MHz+ in SC loads — now stuck at ~5050. Temps and power limits are fine. Looking for advice on what could be limiting boost now.

First time PC builder here, and I was playing around with PBO and CO but I'm not exactly sure if I might have missed a setting or two in BIOS.

PBO was set to enhancement with thermal limit increased to 90C.

CO offset to -35

RAM set to EXPO II @ 6000mhz CL30.

I have encountered zero thermal throttling issues on both prime95 and cinebench. Temperatures averaging around 62C and 78C respectively.

CPU sits at 4.5 ghz for prime95 and stable 4.9 ghz on cinebench. With no stability issue encountered. Final score 17971 but I'm not sure if that's average or not.

Are there any settings that I have missed or should I attempt a lower CO offset since everything is going suspiciously well in my opinion.

Hardware

CPU: 7800X3D

Motherboard: ASUS ROG Crossfire X670E Hero with updated BIOS

RAM: 2x Corsair EXPO sticks

My goal is to keep my system completely stock, no overclocking and within AMD spec. Like my RAM speed for example I want to keep it at 5200mt/s as that is what AMD officially supports as the max for this chip.
.
But what I'm confused about is what exactly is considered "not an overclock" by AMD with the 7800x3D. Do I just keep the standard "Core Performance Boost" enabled and let the single core clock boost to 5Ghz as that is what is in the specs for the chip, or should I still look at enabling PBO? It's not clear to me if enabling PBO is actually considered an "overclock" and I've tried Googling this (and searching here) without a clear answer. Using Curve Optimizer does seem to be out of the question as I'm looking for a completely stable system and I don't like the idea of possible instabilities with undervolting (which is overclocking or maybe it isn't with this chip?).
.
Just looking for clarity on this. My understanding, which could be wrong, is that PBO is lifting some limits to increase the voltage to get a higher clock speed as long as the power and thermal overhead are available to it. On paper it does read like an "overclock", but considering the CPU at stock dynamically changes frequency under load I am not sure either. So if this isn't considered an "overclock" then I would enable it if there's room for performance gain but otherwise all I really care about is stability and not overclocking.
.
GPU: Asus RTX4090

CPU: 7800x3D

Motherboard: Asrock B650M-HDV/M.2

BIOS Version: 3.01

RAM: Crucial 32GB Kit (16GBx2) DDR5-5200 UDIMM - JEDEC timings

PSU: Corsair AX1600i

Case: Fractal Torrent

Operating System & Version: Windows 11 23H2

GPU Drivers: GEFORCE GAME READY DRIVER - WHQL Driver Version: 560.70

Chipset Drivers:AMD REV 6.07.22.037

Background Applications: N/A

Description of Original Problem: Trying to figure out if PBO is considered an overclock by AMD.

Troubleshooting: I've done googling on this but haven't reached a clear answer that I'm sure about.

Hi there,

i read some threads before posting this but havent found "the" answer.

For the first time i try to tune my 7800X3D. Step 1 is making PBO CO stable, Step 2 is reducing the Power Limit to improve Efficiency.

However i am in Step 1 now and i am running my CPU with CO -40 on All Cores.
-45 gives me Windows crashes after some Minutes, but -40 is running for a while now (Windows, Cinebench23, different Games).
Side note: I do not want to put extreme effort in this and therefore wont opzimize per core.

The question:
How can i test if -40 is 1000% stable? Of course i can run CB23 and Prime, but when will i be really safe that -40 is stable and i can continue with other tuning (Power Limit or RAM Primary Timings) to be sure PBO CO wont cause issues later.

Hi team,

I have a seen a lot of post and readings about setting your PBO as advanced and getting a curve optimizer with all core and negative -30 starting with -20.

In what this setting will better the chip performance ?

I have about clock stretching where it affect negatively the speed clock frequency, how can one see if it is indeed the case ?

Hey guys, I'm new to all this so please do correct what I'm doing wrong

I got a 7800x3d with Asrock x670E and DDR5 6000 CL30, and I'm trying to enable PBO on it but can't seem to get anything out of it

Cinebench score is the exact same with PBO - Disabled / PBO - Enabled / PBO - Advanced with 200+ and offset -30, -30, -6, -14, -19, -26, -16, -23 and temperature is around 63C with all of the settings with voltage maxing at 1.000.

If anyone could point to me what I'm doing wrong that would be appreciated

Someone told me it might be worth messing with (lowering it).

https://i.imgur.com/9csWOSa.jpg

any suggestions as to what i should set it to, or do you think it's not worth changing?

Thanks

First time PC builder here, and I was playing around with PBO and CO but I'm not exactly sure if I might have missed a setting or two in BIOS.

PBO was set to enhancement with thermal limit increased to 90C.

CO offset to -35

RAM set to EXPO II @ 6000mhz CL30.

I have encountered zero thermal throttling issues on both prime95 and cinebench. Temperatures averaging around 62C and 78C respectively.

CPU sits at 4.5 ghz for prime95 and stable 4.9 ghz on cinebench. With no stability issue encountered. Final score 17971.

Are there any settings that I have missed or should I attempt a lower CO offset since everything is going suspiciously well in my opinion.

Hardware

CPU: 7800X3D

Motherboard: ASUS ROG Crossfire X670E Hero with updated BIOS

RAM: 2x Corsair