5800x (and other Zen 3 chips) PBO settings/Temperature fix

[freeagent]

Yup the PBO in the Tweaker menu is for 3000 series I think, the AMD overclocking section works best for 5000 series was my finding too.

 

[mattferris]

A couple of other interesting points I should make:
1. I bought a Crosair H115i Pro XT AIO (280mm) two weeks ago to test it vs. the Noctua NH-D15. Temps were about 4C worse on the AIO
2. Now that I have curve offsets correctly applied as of this morning, I'm seeing single core boosts sustain at 5050 (I think this is the max). Gaming temps down about 5C

 

[DemonicRyzen666]

A couple of other interesting points I should make:
1. I bought a Crosair H115i Pro XT AIO (280mm) two weeks ago to test it vs. the Noctua NH-D15. Temps were about 4C worse on the AIO
2. Now that I have curve offsets correctly applied as of this morning, I'm seeing single core boosts sustain at 5050 (I think this is the max). Gaming temps down about 5C

you Know I've got this Corsair H150i capllex and I'm thinking I could get better out of say a alphacool Solo pump and a alphacool 360mm or even up to 560mm full copper radiator, and distilled water. Just too bad the 560mm won't fit in this Corsair 4000D airflow nice case but too small for me.

 

[outpt]

What gives? Hwinfo show’s 4.95ghz but, 4.85 is sustainable all day long while I have seen 4.95 once and that was a very brief moment. pbo +150 should give me 5ghz. is this “clock stretching? Damn thing isn’t getting close to being hot.
I can turn off pbo and do 4.85 all day long.

 

[mattferris]

What gives? Hwinfo show’s 4.95ghz but, 4.85 is sustainable all day long while I have seen 4.95 once and that was a very brief moment. pbo +150 should give me 5ghz. is this “clock stretching? Damn thing isn’t getting close to being hot.
I can turn off pbo and do 4.85 all day long.

Mine wouldn't go past 4.95 until I got my motherboard to use my curve offsets. HWInfo would record spikes over 5GHz, but I never saw it sustain without the curve offsets

 

[outpt]

Mine wouldn't go past 4.95 until I got my motherboard to use my curve offsets. HWInfo would record spikes over 5GHz, but I never saw it sustain without the curve offsets

That’s the problem with this cpu: pbo+ or CO it will not do both together in any shape,form or fashion.

 

[Mussels]

I have an update on mine.

I have to confess, first, that I didn't believe Mussels on not using the curve optimizer in Extreme Tweaker. All of my other PBO settings were working fine from the Extreme Tweaker menu, so I assumed my Curve Optimizer settings were in effect. Out of curiousity, I moved all of my settings over to the AMD Overclocking menu. My voltages are much lower and I'm boosting 200MHz higher than I was before.

On the settings from my fourth test (above), my CB23 score went from 14862 to 15541.

I can't stress this enough. If you are using anything Asus Crosshair VIII Dark Hero, avoid the PBO menu in Extreme Tweaker.

Edit: And this means I probably need to stress test to see if my previous curve offsets are stable, since they were never working in the first place.

Fixed

And yeah, it's a huge waste of time re-testing everything

Mine wouldn't go past 4.95 until I got my motherboard to use my curve offsets. HWInfo would record spikes over 5GHz, but I never saw it sustain without the curve offsets

And yes, you could be experiencing clock stretching, VRM limits, or PBO limits

Hell or temp limits, mine boosted further when i did the LM and remount

 

[ViperXTR]

After testing more rcps3 on new bios with negative CO offset of 15 and negative 5 on best cores, its a lot more stable, gonna try pushing it to negative 20

 

[outpt]

Set pbo+200mhz boost behavior is 4.9ghz on cores 6&7 quite often with 4.95ghz eh showing more but not in any meaningful help. One that needs to be replaced is the aio cooler which may help.

 

[Taraquin]

I ended up setting my PBO back to +50 and -30 allcore CO. Been running +200 pbo and -30x4/-29x2 for a month now. The extra 150MHz gives me 2% perf in single core, but voltages shots to 1.33-1.35V, temps to 70-75C and CPU cooler gets quite noisy for a few secs when opening apps etc even though powerdraw is only 35-45W. +50 rarely exceeds 65C, voltage maxes around 1.2-1.22V and I never hear the CPU cooler. Pwrdraw is almost the same at 30-40W, but I guess the very small hotspot due to SC boost is much cooler. I traded silence for a very slight performancedrop

 

[Mussels]

I ended up setting my PBO back to +50 and -30 allcore CO. Been running +200 pbo and -30x4/-29x2 for a month now. The extra 150MHz gives me 2% perf in single core, but voltages shots to 1.33-1.35V, temps to 70-75C and CPU cooler gets quite noisy for a few secs when opening apps etc even though powerdraw is only 35-45W. +50 rarely exceeds 65C, voltage maxes around 1.2-1.22V and I never hear the CPU cooler. Pwrdraw is almost the same at 30-40W, but I guess the very small hotspot due to SC boost is much cooler. I traded silence for a very slight performancedrop

I think thats what i'm seeing too, even with LM and custom water 75C is.... meh.

I'll try +100 and see if those bursts are tamer.

 

[outpt]

Wonder how well these chips scale above say 4.8 to 4.85ghz. My 5800x doesn’t show much gain even though pbo +200 goes beyond 4.85 and holds the boost fairly well and it’s stable which is what I am more concerned with. It’s fun to play with these cpus.

 

[Mussels]

My temps are still high, boosting to 75C on core 8 (and 60's on the rest)
May have done something wrong with the LM install, yay another rebuild


Update:
Okay user error: I used the derbauer ryzen 3000 offset doodad, and it had simply shifted out of place before i tightened it in. Derp.

No more 75C at idle, more like:

 

[Taraquin]

My temps are still high, boosting to 75C on core 8 (and 60's on the rest)
May have done something wrong with the LM install, yay another rebuild


Update:
Okay user error: I used the derbauer ryzen 3000 offset doodad, and it had simply shifted out of place before i tightened it in. Derp.

No more 75C at idle, more like:
View attachment 224492

Pbo+100 and CO? Ypu can probably run CO lower with +100 vs 200 which will boost allcore freq

 

[Mussels]

Pbo+100 and CO? Ypu can probably run CO lower with +100 vs 200 which will boost allcore freq

The new temps are with +200

The temps were simply a mounting issue - and +200 doesnt seem to hurt my all core clocks

 

[Mussels]

Right i think i know why i'm seeing 75C bursts:
Because i'm getting 4.85GHz all core while gaming...

 

[freeagent]

Pbo+100 and CO? Ypu can probably run CO lower with +100 vs 200 which will boost allcore freq

Your power limits are set too low if that's how its acting. Something like TM5 on both my 5600 and 5900 run at 4850. But for something more hardcore 4600-4700ish should be showing. I haven't run my 5600X is awhile, I almost forget its characteristics. I do remember it doesn't appreciate Linpack with an all core clock of 4700. I got CPU overheat warning at 85c

 

[Mussels]

Okay so this is the final results of tweaking PBO to medium levels, and undervolting my 3090 to keep the loops water temp down:

(This screenshot had the values reset, so it wasnt showing results from prior to the undervolt)
seeing solid 4.8GHz all core while gaming at 60C, and the whole system (screens included) at 370W

 

[Taraquin]

Your power limits are set too low if that's how its acting. Something like TM5 on both my 5600 and 5900 run at 4850. But for something more hardcore 4600-4700ish should be showing. I haven't run my 5600X is awhile, I almost forget its characteristics. I do remember it doesn't appreciate Linpack with an all core clock of 4700. I got CPU overheat warning at 85c

I meant since you probably must reduce the neg CO value quite a bit going from +100 to +200 That eats into the pwr-budget, but can be offset by more PPT, EDC etc.

 

[Suunto]

Okay so this is the final results of tweaking PBO to medium levels, and undervolting my 3090 to keep the loops water temp down:

(This screenshot had the values reset, so it wasnt showing results from prior to the undervolt)
seeing solid 4.8GHz all core while gaming at 60C, and the whole system (screens included) at 370W
View attachment 224746

What final settings did you end up with in PBO + CO if you don't mind me asking?

 

[ViperXTR]

11.11 sale on my area and manage to order an Arctic Freezer II 240 rev4 (with updated ryzen 3000/5000 offset mount) for 80usd, time to return my ol H60 AIO to my ol 3770K office pc, can't wait to test it

 

[Mussels]

What final settings did you end up with in PBO + CO if you don't mind me asking?

I dont recall if it was these, or 10% lower (thats how i was doing it, just taking 10% off and retesting and then stopped when i lapped the chip)
PBO just seems to keep boosting higher and higher as long as temps are low, and seeing all cores at 4.85 in gaming is insane

 

[DemonicRyzen666]

I need to redo all my setting my 5600x is too hot I'm seeing 77.8C on the hottest temperature on HWinfo.
My I/O die doesn't even break 32C, I think I've got a chip ready for LN2 >.> I'm on Corsair 360mm H150i Capplex AIO.
either that I'm going to buy an Chrome Alphacool solo and And full copper alphacool radiator and soft tubing along with distilled water too. I might buy two cause I've got plans later on for two of them.

 

[Mussels]

I need to redo all my setting my 5600x is too hot I'm seeing 77.8C on the hottest temperature on HWinfo.
My I/O die doesn't even break 32C, I think I've got a chip ready for LN2 >.> I'm on Corsair 360mm H150i Capplex AIO.
either that I'm going to buy an Chrome Alphacool solo and And full copper alphacool radiator and soft tubing along with distilled water too. I might buy two cause I've got plans later on for two of them.

I'm seeing spikes like that too occasionally, it's not an issue. Sometimes the chips deliberately send all the power to one core for a boost of performance, and they spike hot for a super brief period of time... the issue is if those spikes are 80+ (as the target seems to be 75C) or if constant load gets it that hot

 

[DemonicRyzen666]

I'm seeing spikes like that too occasionally, it's not an issue. Sometimes the chips deliberately send all the power to one core for a boost of performance, and they spike hot for a super brief period of time... the issue is if those spikes are 80+ (as the target seems to be 75C) or if constant load gets it that hot

I've been running Intel Burn test for about 8 hours or more. It never goes above that 77.5C
I'm just wondering how consistent Hwinfo is for something like cinebenchR23 cause I've noticed all threw my single core test for 90% of the test it shows the current speed to be only 4,022mhz I end up with a score around 1598-1612 for single thread. If the chip isn't hitting it's single thread load more consistently it's lacking a lot of speed. My multi core test I've had a low of 11,450ish and a high of 12,278. I see max cpu in HWinfo says 4850mhz sometimes 4875mhz but it just doesn't seem to pin it there for the cinebench single test ever. On the current in HWinfo I'll sometimes see a spike of 4,335mhz. The all core load it's consistently at 4,700-4694mhz. I'm running pbo with +200.