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System Name | Rainbow Sparkles |
---|---|
Processor | Ryzen R7 5800X (PBO tweaked, 4.4-5.05GHz) |
Motherboard | Asus x570 Gaming-F |
Cooling | EK Quantum Velocity AM4 + EK Quantum ARGB 3090 w/ active backplate. Dual rad. |
Memory | 2x32GB DDR4 3600 Corsair Vengeance RGB @3800 C18-22-22-22-42 TRFC704 (1.4V, SoC 1.15V Hynix MJR) |
Video Card(s) | Galax RTX 3090 SG 24GB: Often underclocked to 1500Mhz 0.737v |
Storage | 2TB WD SN850 NVME + 1TB Sasmsung 970 Pro NVME + WD AN1500 1TB + 1TB Intel 6000P NVME USB 3.2 |
Display(s) | Gigabyte G32QC (4k80Hz, 1440p 165Hz) + Phillips 328m6fjrmb (4K 60Hz, 1440p 144Hz) |
Case | Fractal Design R6 |
Audio Device(s) | Logitech G560 |Razer Leviathan | Corsair Void pro RGB |Blue Yeti mic |
Power Supply | Corsair HX 750i (Platinum, fan off til 300W) |
Mouse | Logitech G Pro wireless + Steelseries Prisma XL |
Keyboard | Razer Huntsman TE (custom white and steel keycaps) |
VR HMD | Oculus Rift S |
Software | Windows 11 pro x64 (Yes, it's genuinely a good OS) |
Benchmark Scores | I don't quite know how i managed to get such a top tier PC, I am not rich. |
The 5800x is well known for having heat issues on stock settings, because it's single 8 core CCX design shares the same power limits as the 2x6 (dual 6 core CCX) 5900x - so it's got a lot less space to cool itself with.
A Zen 3 chiplet (whether it has 4 cores or 8) is 80.7mm square -modern intels are over 200mm square. Four times the surface area to cool with.
It doesn't matter how big a heatsink you slap on top, what matters most is the quality of the contact, and the quality of heatsink base.
All the dual CCX Zen 3 chips look like this, with three sources of heat (lower is the IO die, upper two are the CPU chiplets)
It's simple to imagine that a 5800x having the wattage of both shoved into just one, is going to be harder to cool and fussier about the heatsink contact on top.
You can either fight with a really high quality cooler to get the contact exactly right... or tweak the PBO values and stop the chips from sending so much power out. You could throw 30W more for less than a 1% boost, so why not trim the excess?

When compared to intel, you can see they have a MUCH larger surface area to spread the heat out over, which is why they can report lower temps despite having much higher wattages

So skipping the explanation, heres some recommended settings from our various forum users and myself!
Regardless of which chip you have, you can simply do some minor tweaks to match your chip better: if these settings work super cold (like they do for me on custom water) - you can simply up the values for more performance if you want it. Just make sure to scale them together
Also, single threaded and multi threaded temps are usually very similar, because Ryzen reports the temp of the hottest core
5600x
5800x
Exclusively with this chip due to heat density you'll find very diminishing returns past 100w PPT - expect lapped heatsinks and liquid metal for high values.
These should work on any Zen 3 chips, but watch out for differences in the CCX and core counts.
2x6 cores on a 5900x has far more surface area to cool with, vs a single 8 core CCX on a 5800x - so it can handle higher values.
Two more tips follow:
1. Watch out for two seperate PBO settings on some motherboards, on my Asus board i have one in 'Ai Tweaker' and one in advanced. Only the AI tweaker settings work and apply, the Advanced ones are ignored (except for curve optimiser, which is only visible there)
2. Curve optimiser is great, but watch out for random crashes at idle or moderate load situations. Some of my cores go to -30, some will only go to -5 without issues. Be patient, and only test this when you're 100% sure your system is already stable, or you could waste a lot of time with testing it out. I ended up settling on -13 all core, instead of tweaking them all individually.
I m about to follow some advice here and start using core cycler to test out the offsets in an automated way
GitHub - sp00n/corecycler: Stability test script for PBO & Curve Optimizer stability testing on AMD Ryzen processors
A Zen 3 chiplet (whether it has 4 cores or 8) is 80.7mm square -modern intels are over 200mm square. Four times the surface area to cool with.
It doesn't matter how big a heatsink you slap on top, what matters most is the quality of the contact, and the quality of heatsink base.
All the dual CCX Zen 3 chips look like this, with three sources of heat (lower is the IO die, upper two are the CPU chiplets)
It's simple to imagine that a 5800x having the wattage of both shoved into just one, is going to be harder to cool and fussier about the heatsink contact on top.
You can either fight with a really high quality cooler to get the contact exactly right... or tweak the PBO values and stop the chips from sending so much power out. You could throw 30W more for less than a 1% boost, so why not trim the excess?

When compared to intel, you can see they have a MUCH larger surface area to spread the heat out over, which is why they can report lower temps despite having much higher wattages

So skipping the explanation, heres some recommended settings from our various forum users and myself!
Regardless of which chip you have, you can simply do some minor tweaks to match your chip better: if these settings work super cold (like they do for me on custom water) - you can simply up the values for more performance if you want it. Just make sure to scale them together
Also, single threaded and multi threaded temps are usually very similar, because Ryzen reports the temp of the hottest core
5600x
5600x settings per Zach_01
Default limits of 5600X are:
PPT: 76W
TDC: 60A
EDC: 90A
And some higher performance settings:
PPT: 90W
TDC: 75A
EDC: 100A
Default limits of 5600X are:
PPT: 76W
TDC: 60A
EDC: 90A
And some higher performance settings:
PPT: 90W
TDC: 75A
EDC: 100A
5800x
Exclusively with this chip due to heat density you'll find very diminishing returns past 100w PPT - expect lapped heatsinks and liquid metal for high values.
GerKNG's highly efficiet 5800x settings are as follows:
Max efficiency:
PPT: 95W
TDC:60A
EDC: 90A
56C, 4.2GHz all core load, 4.9GHz boost
Note how the PBO values all match at 100% all together - Gherkin King here really tuned these in!

And then I tested some higher values, since i have custom water cooling on mine:
You'll notice that getting even 100Mhz more, adds 10C
5800x custom water
+200Mhz
Curve optimiser: -10 all core
PPT: 110W
TDC: 90A
EDC: 100A
R23: 4.45GHz all core, 63C (4.925GHz 1T)

5800x custom water
+200Mhz
Curve optimiser: -10 all core
PPT: 120W
TDC: 75A
EDC: 110A
These were tuned in like Gerkngs so they all hit 100% together to please my OCD
R23: 4.5-4.55Ghz all core, 69.5C - (5.025GHz 1T)

Max efficiency:
PPT: 95W
TDC:60A
EDC: 90A
56C, 4.2GHz all core load, 4.9GHz boost
Note how the PBO values all match at 100% all together - Gherkin King here really tuned these in!

And then I tested some higher values, since i have custom water cooling on mine:
You'll notice that getting even 100Mhz more, adds 10C
5800x custom water
+200Mhz
Curve optimiser: -10 all core
PPT: 110W
TDC: 90A
EDC: 100A
R23: 4.45GHz all core, 63C (4.925GHz 1T)

5800x custom water
+200Mhz
Curve optimiser: -10 all core
PPT: 120W
TDC: 75A
EDC: 110A
These were tuned in like Gerkngs so they all hit 100% together to please my OCD
R23: 4.5-4.55Ghz all core, 69.5C - (5.025GHz 1T)

For each setup, curve optimizer was: -23 on best cores; -30 on "bad" cores
Initial Setup
Initial Setup
- PPT: 142
- TDC: 95
- EDC: 125
- Max Temp Multi-Core: 82C
- CB23: 15134
- PPT: 124
- TDC: 85
- EDC: 127
- Max Temp Multi-Core: 76C
- CB23: 14957
- PPT: 120
- TDC: 75
- EDC: 110
- Max Temp Multi-Core: 69.8C
- CB23: 14653
- PPT: 117
- TDC: 80
- EDC: 120
- Max Temp Multi-Core: 71.3C
- CB23: 14862
These should work on any Zen 3 chips, but watch out for differences in the CCX and core counts.
2x6 cores on a 5900x has far more surface area to cool with, vs a single 8 core CCX on a 5800x - so it can handle higher values.
Two more tips follow:
1. Watch out for two seperate PBO settings on some motherboards, on my Asus board i have one in 'Ai Tweaker' and one in advanced. Only the AI tweaker settings work and apply, the Advanced ones are ignored (except for curve optimiser, which is only visible there)
2. Curve optimiser is great, but watch out for random crashes at idle or moderate load situations. Some of my cores go to -30, some will only go to -5 without issues. Be patient, and only test this when you're 100% sure your system is already stable, or you could waste a lot of time with testing it out. I ended up settling on -13 all core, instead of tweaking them all individually.
I m about to follow some advice here and start using core cycler to test out the offsets in an automated way
GitHub - sp00n/corecycler: Stability test script for PBO & Curve Optimizer stability testing on AMD Ryzen processors
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