[SOLVED] [10v1909] DPC/ISR high latency unknown cause. FIX: I updated the BIOS to new version 7B86vH6

IncrociatoreX · Apr 23, 2020

xilolee said:
Did the screen flicker just right before the crash?
I had that problem in the past and it was my PSU fan blocked. I.e., overheating PSU.
Check all fans (and temperatures in BIOS, system monitor).

Before you check that, launch these commands from an elevated command prompt:

Code:

wmic pagefileset where name="C:\\pagefile.sys" delete powercfg /h off

In "max" column you find temps during Cinebench full cores test. gpu temp never goes up 65.
No flickering during crash.

xilolee · Apr 23, 2020

What was the cmd result?

IncrociatoreX · Apr 24, 2020

xilolee said:
What was the cmd result?

"No istance found" when i run your first command (see previous attached file)
And today New Bios from msi site, i will try it

xilolee · Apr 24, 2020

Did you also install "On-Board Audio Drivers"?

The previous image doesn't show the result of the last commands.
By the way, it was incorrect (I posted it through my smartphone and it seemed correct at that moment):

Code:

wmic pagefileset where name="C:\\pagefile.sys" delete

IncrociatoreX · Apr 24, 2020

xilolee said:
Did you also install "On-Board Audio Drivers"?

The previous image doesn't show the result of the last commands.
By the way, it was incorrect (I posted it through my smartphone and it seemed correct at that moment):

Code:

wmic pagefileset where name="C:\\pagefile.sys" delete

same result with cmd

xilolee · Apr 24, 2020

Ok, let's see how it behaves in next hours.

IncrociatoreX · Apr 26, 2020

xilolee said:
Ok, let's see how it behaves in next hours.

Well no pops/stutters for 3 days, only one crash. That's impressive this new Bios? Let's see for other days.
Grazie ancora Xilo

xilolee · Apr 26, 2020

Let's Hope that BIOS fixed it!

IncrociatoreX · May 2, 2020

xilolee said:
Let's Hope that BIOS fixed it!

After 10 days of full testing only 3 random reboots, no DPC/ISR latency at all. I think they are caused by all the mess with drivers and tweaks i have applied.
I will do a clean install with the upcoming 2020 update of windows.

So solution seems to be the latest Bios of April 2020 of b450 gaming plus max.

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[SOLVED] [10v1909] DPC/ISR high latency unknown cause. FIX: I updated the BIOS to new version 7B86vH6

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