Windows 10 High DPC latency (2nd Attempt after two years)

Joined
Jun 1, 2018
Posts
17
Hello again, giving this a try again after two years(2nd time the luck i hope). Laptop experiencing stuttering from the moment it boot until 15-30min (on a good day). After that it was smooth.

  • System Manufacturer? Illegear (Custom Brand)
  • Laptop or Desktop? Laptop
  • Exact model number (if laptop, check label on bottom) Illegear Z5 V2
  • OS ? (Windows 10, 8.1, 8, 7, Vista) Windows 10
  • x86 (32bit) or x64 (64bit)? 64bit
  • Service pack? Version 1909 (Buld 18363.836)
  • What was original installed OS on system? Windows 7
  • Is the OS an OEM version (came pre-installed on system) or full retail version (YOU purchased it from retailer)? Full Retail.
  • Age of system? (hardware) 5 years
  • Age of OS installation? 2 Years
  • Have you re-installed the OS? Yes
  • CPU - Intel Core i7 4720HQ HASWELL
  • RAM (brand, EXACT model, what slots are you using?) ChannelA-DIMM0 Micron Technology , ChannelB-DIMM0 Crucial Technology
  • Video Card Nvidia Geforce 970M
  • Is driver verifier enabled or disabled? Enabled
  • What security software are you using? Firewall and Windows Defender, No external AA.
  • Are you using proxy, vpn, ipfilters or similar software? No.
  • Are you using Disk Image tools? (like daemon tools, alcohol 52% or 120%, virtual CloneDrive, roxio software) No.
  • Are you currently under/overclocking? Are there overclocking software installed on your system? No.
 
Extra Infos (things that i have done throughout the year with no success)

  • Yes i did upgrade all the available drivers to the latest. Tried downgrade them to diff version too.
  • This problems started when i re-installed windows 7 few years back, upgraded to windows 10,re-installed windows 10(clean) also does not solve the issue.
  • Replaced original Network Card Realtek 8723BE to Intel AC 7260 (ndis.sys)
  • Replaced my laptop battery and updated and downgraded ACPI.sys to different versions.
  • Disabling all the drivers
  • Bios is fully updated.
  • Stutter also happens in safe mode.
  • Power Options to maximum performance.
  • Windows update on/off for a few months each
  • Firewall on/off
Before anyone ask,yes i endured this for 2 years. To be honest i have done everything that was suggested by google searches/youtube. I am hoping someone who can look into my trace file for the real issue. I tried diving into my trace with WPA (with guide from here) however it just shows the usual nxddkvm,ntoskrl.exe,stoport, etc that are causing the spikes. I am not sure how to go from there.

Any helps/advice is much appreciated, you guys rocks.
 
Last edited:
Hi! 🖖

1) New Firmware 003056RR - November 04, 2019 - for SUV500/240G (KINGSTON SUV500MS480G)
2) Speccy shows high temperatures for your ssd (59°C - max allowed: 70; CPU: 77°C - max allowed: 110; GPU: 60°C - max allowed: 100)
3) Disable intel graphics (but re-enable it when you are using the battery instead of the mains)
 
Last edited:
The great Xilolee has grace this thread,hooray!

Updates :
  • Cleaned laptop and cooler. Speccylink
  • UPdated SSD firmware
    kingston.jpg
  • Disabled onboard graphic(intel) thru device manager
    disable intel graphic.jpg
Restarted a couple of time, problem still persist.

Sidenotes*
- the kingston SSD is a new addition, the stutter is already there before it was installed.
 
Disable driver verifier (why is it enabled?).

You have a fresh system restore point and a system backup available, haven't you?
(And a copy of your important files, in another safe place?)

Open device manager and re-enable intel graphics (and leave it opened)
Open Control Panel\Programs\Programs and Features and uninstall everything by nvidia.
Download 445.87 - NVIDIA WHQL game ready driver
(I wasn't able to download it)
Unzip/decompress/extract its content (in your preferred path).
Maximize device manager (or re-open it).
Double-left-click "display adapters" and double-left-click nvidia geforce graphics (or how it is called).
deviceman.png
(or you can see "other devices" under the main list: double-left-click it and then double-left-click "unknown device")
Its properties will appear, and general tab will be displayed.
Switch to the driver tab and click update driver.
displaydriverdetails.png
Click Browse my computer for driver software - Locate and install driver software manually.
searchpossibilities.png
Under the text box named "Search for drivers in this location:", paste the path of nvidia drivers.
browselocation.png
Click the next button.
After this, nvidia drivers should be installed.
installingdrivers.png
(My screen/monitor became black two-three times for some seconds)
Untitled2.png
If it should ask to reboot, reboot (mine didn't ask it).

When Nvidia drivers are installed, disable again Intel graphics and check if this improved the situation, or eliminated/terminated the issue.
 
Last edited:
Hi 👋,

Updates
  • The driver verifier is disabled.
  • Re-Enabled Intel Graphics
  • My nvidia is the same version as your link. Proceeded to remove and reinstall anyway.
  • Restarted a couple times.
new zipped file i traced Trace.etl
 
Hi everything,

Updates
  • Reinstalled only Nvidia driver. No nvidia software installed. (checked Installed program list)
  • Disabled Intel Graphic (now my eyes is blinding due to the sheer brightness of the screen,unable to find the brightness slider,probaly disabled along with intel graphic)
  • restarted a couple of times.
New trace in zip. trace.zip
 
Warning: codes/quotes/commands colored in red in the following lines are valid just for me, you have to put yours.
I.e., this one: PCI\VEN_1022&DEV_780D&SUBSYS_76621849&REV_01\3&11583659&0&A2




Try this, from an elevated command prompt (like all the other following commands):
Code:
reg query HKLM\SYSTEM\CurrentControlSet\Enum\PCI\ /s /f hdaudbus
I get the following:
Read More:
Yours will be different.
I get that same string in "Device manager, Sound, Video and game controllers", "Realtek High Definition Audio", properties, details tab, Property: Parent, Value: PCI\VEN_1022&DEV_780D&SUBSYS_76621849&REV_01\3&11583659&0&A2

Then the next command will only check if a key is present:
Rich (BB code):
reg query "HKLM\SYSTEM\CurrentControlSet\Enum\PCI\VEN_1022&DEV_780D&SUBSYS_76621849&REV_01\3&11583659&0&A2\Device Parameters\Interrupt Management\MessageSignaledInterruptProperties"
I get:
Read More:
The next command will change 0x0 to 0x1 for MessageSignaledInterruptProperties, or it will add it to the registry if it is not present:
Rich (BB code):
reg add "HKLM\SYSTEM\CurrentControlSet\Enum\PCI\VEN_1022&DEV_780D&SUBSYS_76621849&REV_01\3&11583659&0&A2\Device Parameters\Interrupt Management\MessageSignaledInterruptProperties" /v MSISupported /t REG_DWORD /d 1 /f
I get:
Read More:







This is another method to do the same thing, but using device manager and regedit:

1) Find your pci string in "Device manager, Sound, Video and game controllers", "High Definition Audio Device", properties, details tab, Property: Parent, Value: Your-PCIString

realtekpci.png


2) Open regedit and "navigate" here: Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\PCI\Your-PCIString\Device Parameters\Interrupt Management\MessageSignaledInterruptProperties

3) Change the MSISupported value, from 0 to 1. If it doesn't exist, create a new dword (32-bit value), name it MSISupported, give it 1 as value.

msisupported.png
 
Last edited:
Warning: codes/quotes/commands colored in red in the following lines are valid just for me, you have to put yours.
I.e., this one: PCI\VEN_1022&DEV_780D&SUBSYS_76621849&REV_01\3&11583659&0&A2




Try this, from an elevated command prompt (like all the other following commands):
Code:
reg query HKLM\SYSTEM\CurrentControlSet\Enum\PCI\ /s /f hdaudbus
I get the following:
Read More:
Yours will be different.
I get that same string in "Device manager, Sound, Video and game controllers", "Realtek High Definition Audio", properties, details tab, Property: Parent, Value: PCI\VEN_1022&DEV_780D&SUBSYS_76621849&REV_01\3&11583659&0&A2

Then the next command will only check if a key is present:
Rich (BB code):
reg query "HKLM\SYSTEM\CurrentControlSet\Enum\PCI\VEN_1022&DEV_780D&SUBSYS_76621849&REV_01\3&11583659&0&A2\Device Parameters\Interrupt Management\MessageSignaledInterruptProperties"
I get:
Read More:
The next command will change 0x0 to 0x1 for MessageSignaledInterruptProperties, or it will add it to the registry if it is not present:
Rich (BB code):
reg add "HKLM\SYSTEM\CurrentControlSet\Enum\PCI\VEN_1022&DEV_780D&SUBSYS_76621849&REV_01\3&11583659&0&A2\Device Parameters\Interrupt Management\MessageSignaledInterruptProperties" /v MSISupported /t REG_DWORD /d 1 /f
I get:
Read More:







This is another method to do the same thing, but using device manager and regedit:

1) Find your pci string in "Device manager, Sound, Video and game controllers", "High Definition Audio Device", properties, details tab, Property: Parent, Value: Your-PCIString

View attachment 59793


2) Open regedit and "navigate" here: Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\PCI\Your-PCIString\Device Parameters\Interrupt Management\MessageSignaledInterruptProperties

3) Change the MSISupported value, from 0 to 1. If it doesn't exist, create a new dword (32-bit value), name it MSISupported, give it 1 as value.

View attachment 59792
Hi,

Tried this, issue still persist. I'm sorry i was unable to reply you, i was kinda fed up dealingwith this problem.
 

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