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7800x3d eclk overclock not stable under light loads

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ragnarog

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Discussion starter · #1 ·
recently started overclocking my 7800x3d with eclk as per skatterbench youtube video. im able to finish all my benchmarks and stabilty tests without issue but my pc randomly restarts during light workloads like browsing the web or copying files.
with current settings it boosts to 5.4ghz single core and 5100mhz all core during benchmarks.
any help stabilizing my pc at idle would be highly appreciated.
 
#2 ·
To stabilize your PC, remove the clearly unstable overclock. Then learn to actually overclock your CPU the proper way, by slowly walking your boost frequency up in 50MHz increments and adjusting your voltage and other relevant settings upward (or in some cases downward), as necessary. Don't know what the settings in your BIOS do? Start there before jumping headfirst into a +600MHz overclock with some random YouTuber's settings.
 
#4 ·
Reset your BIOS to factory defaults. Yes, completely reset it.
Test.
If that's stable, then apply your manufacturer-specified RAM OC profile. Do not touch a single CPU setting.
Test.
If that's stable, then you can start overclocking your CPU again, changing only one, max 2, values at a time. SMALL INCREMENTS.
Test.
If that's stable, then you can start overclocking your CPU again, changing only one, max 2, values at a time. SMALL INCREMENTS.
Test.
If that's stable, then you can start overclocking your CPU again, changing only one, max 2, values at a time. SMALL INCREMENTS.
Test.
If that's stable, then you can start overclocking your CPU again, changing only one, max 2, values at a time. SMALL INCREMENTS.
Test.
...
If that's stable, then you can start overclocking your CPU again, changing only one, max 2, values at a time. SMALL INCREMENTS.
Test.
 
#5 ·
Owari said:
Reset your BIOS to factory defaults. Yes, completely reset it.
Test.
If that's stable, then apply your manufacturer-specified RAM OC profile. Do not touch a single CPU setting.
Test.
If that's stable, then you can start overclocking your CPU again, changing only one, max 2, values at a time. SMALL INCREMENTS.
Test.
If that's stable, then you can start overclocking your CPU again, changing only one, max 2, values at a time. SMALL INCREMENTS.
Test.
If that's stable, then you can start overclocking your CPU again, changing only one, max 2, values at a time. SMALL INCREMENTS.
Test.
If that's stable, then you can start overclocking your CPU again, changing only one, max 2, values at a time. SMALL INCREMENTS.
Test.
...
If that's stable, then you can start overclocking your CPU again, changing only one, max 2, values at a time. SMALL INCREMENTS.
Test.
Click to expand...
you are overclocking like back in the days , my friend, its a locked Ryzen 7800X3D, you need to tune the Curve Optimizer. You probably dont even own a AM5 CPU?
 
#6 ·
Its pretty straight forward, you have to find the optimal PBO Curve Optimizer settings for each core, i would suggest doing this with 100 bclk first, so you know which cores are better and which are worse. Then up the bclk to 101 and give for example +15 per core more curve. Test again.
Rigfht now, One of your cores/ or multiple cores have a too low curve settings, so when the system is in light load/ in idle, some core has too low voltage. For high load workloads it works fine but for light load it can fail. The setting Skatterbencher used are very aggressive and very undervolted.
 
#7 ·
Kaliz said:
you are overclocking like back in the days , my friend, its a locked Ryzen 7800X3D, you need to tune the Curve Optimizer. You probably dont even own a AM5 CPU?
Click to expand...
Overclocking is just the same as it was with Zen 3, and I own a 5900x (but am typing this from 13th gen Intel), very familiar with PBO and the subsequent PBO2. Sure, the settings are different from how things were "back in the days", but the core principles are the same. We're no longer simply walking clocks up while also walking voltages up. For most users, they're walking voltages down and seeing clocks boost higher as a result. Lower temps allow the cores to boost higher to fill the thermal gap, yadda yadda.

Anyway, you apply small changes and you test. Simple as that. The settings you change are different. There's more fine-tuning involved. But what nobody ever did across all of overclocking time was copy-paste someone else's overclock as it seems OP did and expect it to work. They need to start from scratch, or from a very mild baseline like -5 magnitude on all cores.
 
#8 · (Edited)
BCLK 105 - LLC7 - Scaler X6 - Boost Clock (-) 150 MHz or 5150MHz, stable SHA3 (25X back-to-back), etc.

  • R23: 19324
  • Time Spy CPU: 15105 - 15th World Leader board.
2X16GB 6200 MT/s CL28 36 32 30 / 2200FCLK

No CO + / - required.

Need to find the optimal LLC and (-) Boost Clock offset.
Likely not going to be worth running full boost with LLC settings worth using. Single core may be good but overall performance lacking.

This will vary depending on CPU silicon, cooling, MB LLC settings, etc.

My R7 7800X3D has an SP of 90 so doesn't seem like a "Golden Bin" or anything. Though not sure how much stock to put into "SP"
Cooler Score: 165-171
DeepCool LT720 360 AIO w/ Artic MX6 paste. CPU mounting bracket.
 
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#9 ·
i can share my settings for 104 bclk, very simple: i found my worst core, i set Curve optimizer -18 for the worst core, the rest -23. And eclk+bclk OC so the RAM is at 8320: after some tuning you can do stuff like this. In YCruncher you might need more voltage so higher curve optimizer. For me its like 0 curve for 105 bclk. I have a very good 7800X3D yours might be different ofcourse. I only used PBO motherboard powerlimits, and the curve optimizer + 104 bclk Good luck tuning its a very hard CPU to fully understand.
Screenshot Font Software Electronic device Technology
 
#10 ·
Kaliz said:
you are overclocking like back in the days , my friend, its a locked Ryzen 7800X3D, you need to tune the Curve Optimizer. You probably dont even own a AM5 CPU?
Click to expand...
Overclocking hasn't changed in the last 15 years. The only things that have changed are the levers you can apply and their effect. Changing one thing at a time is one of the fundemental aspects that apply just as much today as in 2009.

ragnarog said:
recently started overclocking my 7800x3d with eclk as per skatterbench youtube video. im able to finish all my benchmarks and stabilty tests without issue but my pc randomly restarts during light workloads like browsing the web or copying files.
with current settings it boosts to 5.4ghz single core and 5100mhz all core during benchmarks.
any help stabilizing my pc at idle would be highly appreciated.
Click to expand...
The problem is light load, meaning high single core boost clocks. The solution is to either apply a lower frequency ceiling (-25 MHz at a time until you find stability), positive curve optimizer values, or a flat vcore offset
 
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#11 ·
I also have a 7800X3D and was able to eclk oc to 107.

It is stable on stress test, but crashes on light load.

I fixed it by using positive PBO in increments of +5 all core until it is fully stable.

In the end, I have it set +20 all core and has been fully stable for over 6 months.
 
Discussion starter · #12 ·
raclimja said:
I also have a 7800X3D and was able to eclk oc to 107.

It is stable on stress test, but crashes on light load.

I fixed it by using positive PBO in increments of +5 all core until it is fully stable.

In the end, I have it set +20 all core and has been fully stable for over 6 months.
Click to expand...
wow. how are your temps? also do you have to mess with llc or just leave it at default?
 
#13 ·
raclimja said:
I also have a 7800X3D and was able to eclk oc to 107.

It is stable on stress test, but crashes on light load.

I fixed it by using positive PBO in increments of +5 all core until it is fully stable.

In the end, I have it set +20 all core and has been fully stable for over 6 months.
Click to expand...
Doesn't it PPT / TDC / EDC throttle like mad at that high of a + CO?
 
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#15 ·
Imprezzion said:
Doesn't it PPT / TDC / EDC throttle like mad at that high of a + CO?
Click to expand...
People kept forgetting X3D chips are extremely efficient even if you set custom settings the CPU draws less than 100W under full load even on maximum OC.

 
#16 ·
Imprezzion said:
Doesn't it PPT / TDC / EDC throttle like mad at that high of a + CO?
Click to expand...
There's still the 1.20V limit in place, so any V/F point that's shifted above 1.20V is now removed. This effectively lowers the boost clock ceiling.
 
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#17 ·
Arni90 said:
There's still the 1.20V limit in place, so any V/F point that's shifted above 1.20V is now removed. This effectively lowers the boost clock ceiling.
Click to expand...
Good to know. I'm about to start eCLK OC once my Gene shows up so I wanna know where the limits are. Right now I'm on BCLK only at 102 (5150 all core) and it's at -12 CO which is about 1.120v under load. I'm hoping for 5.3 or even 5.4 on eCLK but my cores aren't that great in terms of CO so I assume I'd have to go positive at that high of a clock.
 
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#18 ·
ragnarog said:
recently started overclocking my 7800x3d with eclk as per skatterbench youtube video. im able to finish all my benchmarks and stabilty tests without issue but my pc randomly restarts during light workloads like browsing the web or copying files.
with current settings it boosts to 5.4ghz single core and 5100mhz all core during benchmarks.
any help stabilizing my pc at idle would be highly appreciated.
Click to expand...
Do you feel stuck when you play games?



0.1low fpsThere is an exception



This requires using the frame generation curve in msi small plane to observe the fire.



Or use gamepp to observe. The 0.1lowfps open path is in the hardware monitoring.



Gamepp's result is more accurate than MSI's because its 0.1lowfps requires you to set the refresh time to 100ms.

Such jamming usually occurs when the memory frequency is higher and the parameters are tighter.And cpu negative pressure is too high.
 
#19 ·
Kaliz said:
i can share my settings for 104 bclk, very simple: i found my worst core, i set Curve optimizer -18 for the worst core, the rest -23. And eclk+bclk OC so the RAM is at 8320: after some tuning you can do stuff like this. In YCruncher you might need more voltage so higher curve optimizer. For me its like 0 curve for 105 bclk. I have a very good 7800X3D yours might be different ofcourse. I only used PBO motherboard powerlimits, and the curve optimizer + 104 bclk Good luck tuning its a very hard CPU to fully understand.
View attachment 2649505
Click to expand...
Do you feel stuck when you play games?



0.1low fpsThere is an exception



This requires using the frame generation curve in msi small plane to observe the fire.



Or use gamepp to observe. The 0.1lowfps open path is in the hardware monitoring.



Gamepp's result is more accurate than MSI's because its 0.1lowfps requires you to set the refresh time to 100ms.

Such jamming usually occurs when the memory frequency is higher and the parameters are tighter.And cpu negative pressure is too high.
 
#20 ·
raclimja said:
I also have a 7800X3D and was able to eclk oc to 107.

It is stable on stress test, but crashes on light load.

I fixed it by using positive PBO in increments of +5 all core until it is fully stable.

In the end, I have it set +20 all core and has been fully stable for over 6 months.
Click to expand...
你在玩游戏时会觉得卡住吗？



0.1低fps有一个例外



这需要使用msi小平面中的帧生成曲线来观察火灾。



或者使用 gamepp 进行观察。0.1lowfps 的开放路径在硬件监控中。



Gamepp 的结果比 MSI 的结果更准确，因为它的 0.1lowfps 要求您将刷新时间设置为 100 毫秒。

这种干扰通常发生在内存频率较高且参数较严格时。而且cpu负压太高。
 
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