Question Unusual behavior of my Ryzen 9800X3D ?

[ridwan123]

Hi all.

My Ryzen 9800X3D setup has suddenly become weird and the CPU temp suddenly reaches 90 degrees during idle. it never happened before as I was OC before and it was fine for several weeks.
But today it is so strange that it reaches 90 degrees during idle. So I set everything back to stock and it works perfectly fine.

One more question is I did the CPU OC with plus 200mhz boostclock override.
PBO is on but the clock did not want to run stable at 5400 mhz ?

 

[Lutfij]

My Ryzen 9800X3D setup
When posting a thread of troubleshooting nature, it's customary to include your full system's specs. Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard at this moment of time.

 

[JayGau]

90°c at idle and it stopped doing it when you removed PBO? How did you set the overclock? It looks like the motherboard suddenly decided to run the chip at max boost clock constantly. Did you look at the clock frequency on the cores when it was running hot?

Even when it's overclocked with PBO, the cpu should not always run at max frequency. It should boost there only when needed, and only on the number of cores needed for the task.

When you overclock the 9800X3D, you should first set the curve optimizer to something like -15 on all cores (you can start with -5 and decrease by iterations of 5 until -15 or even -20 if it's stable), then set PBO to manual and and add 100 or 200 MHz to the max boost clock. If you have some stability issues you can also increase the scalar factor, although people say it's no very useful if you have curve optimizer set properly. You should also set Windows power plan to performance when you do that.

But again, the max clock speed should only be reached when the CPU has a load that requires it. If its always running at max and it's constantly at 90°c there's something wrong.

I have mine set to +100 MHz and curve optimizer to -15 and even under max load it barely goes above 80° (around 40° at idle).

 

[ridwan123]

90°c at idle and it stopped doing it when you removed PBO? How did you set the overclock? It looks like the motherboard suddenly decided to run the chip at max boost clock constantly. Did you look at the clock frequency on the cores when it was running hot?

Even when it's overclocked with PBO, the cpu should not always run at max frequency. It should boost there only when needed, and only on the number of cores needed for the task.

When you overclock the 9800X3D, you should first set the curve optimizer to something like -15 on all cores (you can start with -5 and decrease by iterations of 5 until -15 or even -20 if it's stable), then set PBO to manual and and add 100 or 200 MHz to the max boost clock. If you have some stability issues you can also increase the scalar factor, although people say it's no very useful if you have curve optimizer set properly. You should also set Windows power plan to performance when you do that.

But again, the max clock speed should only be reached when the CPU has a load that requires it. If its always running at max and it's constantly at 90°c there's something wrong.

I have mine set to +100 MHz and curve optimizer to -15 and even under max load it barely goes above 80° (around 40° at idle).

I only set up +200 mhz boost clock override,scalar is auto,CO is auto because i dont want to mess anything and pbo is on.in a 2 weeks after apllying this oc the cpu is still ok no temp jumps but during 90 degree idle this time i did not have a chance to

90°c at idle and it stopped doing it when you removed PBO? How did you set the overclock? It looks like the motherboard suddenly decided to run the chip at max boost clock constantly. Did you look at the clock frequency on the cores when it was running hot?

Even when it's overclocked with PBO, the cpu should not always run at max frequency. It should boost there only when needed, and only on the number of cores needed for the task.

When you overclock the 9800X3D, you should first set the curve optimizer to something like -15 on all cores (you can start with -5 and decrease by iterations of 5 until -15 or even -20 if it's stable), then set PBO to manual and and add 100 or 200 MHz to the max boost clock. If you have some stability issues you can also increase the scalar factor, although people say it's no very useful if you have curve optimizer set properly. You should also set Windows power plan to performance when you do that.

But again, the max clock speed should only be reached when the CPU has a load that requires it. If its always running at max and it's constantly at 90°c there's something wrong.

I have mine set to +100 MHz and curve optimizer to -15 and even under max load it barely goes above 80° (around 40° at idle).

I set pbo on ,scalar auto and 200 mhz boost clock override,CO is auto.during 2 weeks after applying this oc everything seems fine and only this time is 90 degree during idle.i did not have a chance to see the clock during 90 degree

 

[ridwan123]

3

My Ryzen 9800X3D setup
When posting a thread of troubleshooting nature, it's customary to include your full system's specs. Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard at this moment of time.

MOBO : ASUS PRIME X870 P WIFI CSM
CPU : RYZEN 7 9800X3D
GPU : XFX RX 7900 XTX MAGNETIC AIR
RAM : CORSAIR (16GB × 2) 6000 MHZ DDR 5
PSU : MONTECH CENTURY G5 850 W 80+GOLD
COOLER : DEEPCOOL LE720 360MM

 

[JayGau]

I only set up +200 mhz boost clock override,scalar is auto,CO is auto because i dont want to mess anything and pbo is on.in a 2 weeks after apllying this oc the cpu is still ok no temp jumps but during 90 degree idle this time i did not have a chance to

I set pbo on ,scalar auto and 200 mhz boost clock override,CO is auto.during 2 weeks after applying this oc everything seems fine and only this time is 90 degree during idle.i did not have a chance to see the clock during 90 degree

If you set a 200 MHz boost without any curve optimization, you will certainly run hot during medium/heavy CPU load. I now understand that this 90c only happened once. Maybe Windows was doing an update or a Defender scan, or another program was running something and the CPU got loaded enough to reach 90c, which is not surprising with a 200 MHz pbo boost and no curve optimization.

When a high temperature event happens like this, you should not assume the CPU is idle just because you are not doing anything at this moment. You should open task manager and look at the CPU load and what proceses are running.