Lenovo Yoga 7 Gen 7: DPC Watchdog Violation (Bugcheck code: 0x133)

[User Of Inspiron 1420]

Sure, 30 mins or longer?

 

[xilolee]

If it stays below 85°C (after 15 minutes), I would leave it two-three hours.

 

[User Of Inspiron 1420]

I will probably try it in an aircond room if possible. But if it exceed 85celcius after 15 min how long should I let it run?

 

[xilolee]

If it reaches 95 °C (the max for your cpu), I'd close prime95 almost immediately...

I ended the second prime95 test after 180 minutes (from 16:49 to 19:49 - 4:49 PM to 7:49 PM - without verifier running).
In the meanwhile, I did also a memory test with HCIDesign memtest, using three instances of it (2048MB, 2048MB, 512MB).
I tried a fourth memtest instance of 128 MB, but it rendered the PC unusable...
The temperature was hovering between 65°C and 68°C; which, in my case, is almost at the limit.
In the previous test, it was fixed at 71°C (that's the limit).
These were my results:

Read More:

[Sat Jan  4 17:09:57 2025]
Self-test 4K (thread 2 of 2) passed!
Self-test 4K (thread 1 of 2) passed!
[Sat Jan  4 17:52:00 2025]
Self-test 5K (thread 1 of 2) passed!
[Sat Jan  4 18:03:46 2025]
Self-test 5K (thread 2 of 2) passed!
[Sat Jan  4 18:31:39 2025]
Self-test 6K (thread 2 of 2) passed!
Self-test 6K (thread 1 of 2) passed!
[Sat Jan  4 18:49:34 2025]
Self-test 8K (thread 1 of 2) passed!
Self-test 8K (thread 2 of 2) passed!
[Sat Jan  4 19:33:37 2025]
Self-test 10K (thread 2 of 2) passed!
Self-test 10K (thread 1 of 2) passed!

 

[xilolee]

I monitor the temp from time to time and it is usually around 75+-celcius

75°C during normal use?
Or 75 during the test?

 

[User Of Inspiron 1420]

During the test.


Now, I disabled all AVX options and run prime95 for 2 hours (my timer shows 47 min left to reach a total of 3 hours)
The temperature is similar as well but I am in an aircond room this time.

In the meanwhile, I did also a memory test with HCIDesign memtest, using three instances of it (2048MB, 2048MB, 512MB).
I tried a fourth memtest instance of 128 MB, but it rendered the PC unusable...

So I will just copy your steps exactly? My ram is 32GB. And running four instances together?

 

[xilolee]

During the test.


Now, I disabled all AVX options and run prime95 for 2 hours (my timer shows 47 min left to reach a total of 3 hours)
The temperature is similar as well but I am in an aircond room this time.View attachment 114391


So I will just copy your steps exactly? My ram is 32GB. And running four instances together?

No, it was just me trying.
If the prime95 test passes, next step is to try furmark for the GPU.
Now are you testing with smallest ffts or small ffts?

I used smallest because the small option wasn't available to choose.

 

[User Of Inspiron 1420]

If the prime95 test passes, next step is to try furmark for the GPU.
Now are you testing with smallest ffts or small ffts?

Smallest ffts.
Do I need to run small ffts for 2 to 3 hours ?
For the furmark what config or test do I choose? And for how long

 

[xilolee]

Yup, I'd try the small one too.

Thread 'FurMark Display Card Stress Test'

Aug 2, 2012

FurMark Display Card Stress Test:

1. First, download and install the latest version of FurMark from FurMark: VGA Stress Test, Graphics Card and GPU Stability Test, Burn-in Test, OpenGL Benchmark and GPU Temperature | oZone3D.Net.
2. Run FurMark with full administrator access:
   Read More:

   How do I run an application once with a full administrator access token?
   Some legitimate applications require a full administrator access token to perform their functions or tasks. The User Account Control (UAC) message is displayed to request consent or...

• writhziden
• Replies: 4
• Forum: Hardware Tutorials

 

[User Of Inspiron 1420]

I ran prime95 small ffts for 3 hours and also furmark for 20 min without any issue.

 

[xilolee]

Try to run both (prime95 blend).

 

[User Of Inspiron 1420]

3 hours as usual? or 2 hours is enough tbh
disabled all AVX options too?

 

[xilolee]

Try twenty minutes with avx (if the temperature will not increase too much).
Otherwise, without avx.
If the temperature allows it, try to run it for two hours.

 

[User Of Inspiron 1420]

I ran 2 hours of blend prime95 (with AVX options enabled) without any issue.

 

[xilolee]

Together with furmark?

 

[User Of Inspiron 1420]

Wait do you mean I should run furmark and blend prime95 simultaneously?
If so I didnt

 

[xilolee]

Yup

 

[User Of Inspiron 1420]

Max GPU temp should be 90celcius right? And cpu temp should not reach 95celcius? Will run for 2 hours simultaneously unless either condition is reached.
Will do it tomorrow

 

[xilolee]

Max. operating temperature (tjmax - Thermal Junction Maximum) 95°C

From howtogeek.com: What Does TJMax Mean?

TJMax is the maximum temperature a CPU will run at before it initiates its safety mechanisms to lower its clock speed and voltage to prevent overheating.
If the CPU is still overheating even after slowing down, it'll shut down to prevent permanent damage.

From howtogeek.com: What Is Thermal Throttling?

Under heavy load, they produce a lot more heat, which can lead to them getting too hot.
Under sustained high temperatures, these components could be susceptible to permanent damage.
When a component reaches a high enough temperature, performance is limited to prevent heat build-up and encourage cooling.
Components can only safely run at their full potential if whatever cooling solution is provided can keep them within a safe operating temperature.
"Throttling" in this context means "ditching performance" in the form of lowering clock speeds.
Your GPU or CPU will run slower, dragging performance down with it.
On the desktop, you might find that the UI is a little more sluggish, while GPU thermal throttling will reduce frame rates in games.

 

[User Of Inspiron 1420]

No issue at all. I ran furmark and blend prime95(with AVX options selected) simultaneously for 2 hours.