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5000 Series Undervolting

Test all cores at the same time will not find WHEA error. You have to test each THREAD one at a time with a very light work load.

WHEA seems to come about when the chip don’t see enough voltages on light loads.

all core loads are never the issue, as the chip will see 1.3V and loads of amps are going into it so it can easily sustain workload and be stable.
 
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That’s where using it for software development comes in, a few games, Teams , testing. Lots of light loads. No errors

I have been undervolting CPU’s for a long time.
 
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humbug said:
Undervolting Ryzen 5000 is always one answer, Negative Curve Optimiser, i'm running -15 and +150Mhz, runs 5Ghz on all 16 threads all day in games.

Its about time AMD was firing on all cylinders again and these chips are just ####### brilliant, its also nice to see new innovative ways to tweak CPU's, Curve Optimiser seems like such a simple thing but its very clever in what it does, "Take off 40mv" is so 2008, this knows how much or how little voltage to remove or add for everything that it does and dynamically makes those adjustments literally from 1 milliseconds to the next to give you the most optimal results.
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Only easy if it works

If I run those settings on my 5800X the PC will reboot before I even start up Cinebench :p
 
I got my 5600x running with a -30 on CO and a -0.05 offset with LLC at level 1 with no errors. It maxes out at 65C die temp and 1.13v SV12 TFN with prime 95 max stress and sits at 4650mhz under load. I finally got a decent chip after years of mediocre ones.
 
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BHS1975 said:
I got my 5600x running with a -30 on CO and a -0.05 offset with LLC at level 1 with no errors. It maxes out at 65C die temp and 1.13v SV12 TFN with prime 95 max stress and sits at 4650mhz under load. I finally got a decent chip after years of mediocre ones.
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Nice, are you going to push the offset more? I’m using LLC to dampen the voltage over shoot. Which brings down the peak voltage when the load changes.

With a good chip it’s looking like you can possibly run at 1V under load which is pretty amazing. Trying to get a feel of the chip.

My previous 8700K is a sweet chip too. So the undervolting gods have been kind
 
Just having a play. Reduced the offset to -0.1625 and applied a 200 MHz boost. Currently running R23 single thread and it’s boosting up to 5,100.

played with enabling PBO and that’s worth about another 1500 points on R23 multi but adds about 13’c extra heat and 50 watts extra power.

There seems to be lots of combinations for getting a sweet spot.
 
The Asgard said:
Nice, are you going to push the offset more? I’m using LLC to dampen the voltage over shoot. Which brings down the peak voltage when the load changes.

With a good chip it’s looking like you can possibly run at 1V under load which is pretty amazing. Trying to get a feel of the chip.

My previous 8700K is a sweet chip too. So the undervolting gods have been kind
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If I go any lower I get random errors and lockups when idling in windows.
 
Is there anyway to undervolt this on stock clocks to actually bring the temps down, i am playing roblox with my kid at 82c :/. Don't get me wrong i am only using 50% fan speed atm which is audible already so i could crank them up and get it cooler but the noise is just to much. I have read pages and pages of pbo/pbo2-curve optimizer and nothing really explains just a plain old decrease in core volts.
 
Loxa said:
Is there anyway to undervolt this on stock clocks to actually bring the temps down, i am playing roblox with my kid at 82c :/. Don't get me wrong i am only using 50% fan speed atm which is audible already so i could crank them up and get it cooler but the noise is just to much. I have read pages and pages of pbo/pbo2-curve optimizer and nothing really explains just a plain old decrease in core volts.
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That’s currently what I am doing. If you disable PBO and play with the curve optimiser, suggest negative -5 all cores to start with. You should see a significant reduction in temperature. If your stable you can push it to -30, suggest doing it slowly, depends on chip. If things start to get flaky you can tweak individual cores. Give it a try.
 
The Asgard said:
That’s currently what I am doing. If you disable PBO and play with the curve optimiser, suggest negative -5 all cores to start with. You should see a significant reduction in temperature. If your stable you can push it to -30, suggest doing it slowly, depends on chip. If things start to get flaky you can tweak individual cores. Give it a try.
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Disable PBO? I have to check advanced in PBO to get the curved optimizier options to appear Or should i be disabling PBO limits and not setting it to motherboard?
 
The Asgard said:
Advanced/ AMD Overclocking.

Disable PBO Limits. go into Curve Optimiser. Negative -5 All Core to start with.
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Ahh yeah that's what i thought, havin a tinker with it.

Say i make it to -15 all cores and it crashes how would i know what core is causing it?
 
BHS1975 said:
Yeah what's weird is that it will run the stress tests just fine down to -0.075 offset and won't boot at -0.1 offset.
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That's definitely on the edge. I would have probably back off to -0.050. LLC could help with stability. Curve Optimiser will give you the biggest gain. The offset is just icing on the cake.
 
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