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

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

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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
 
Last edited:
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
Click to expand...
same result with cmd
 

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xilolee said:
Let's Hope that BIOS fixed it! :-)
Click to expand...
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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