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Windows 7: Usbport.sys causes high DPC over time.

13 Apr 2013   #1

Windows 7 Ultimate x64
 
 
Usbport.sys causes high DPC over time.

So here's my problem and i've been looking everywhere for something that might fix this... my machine is running pretty much 24/7 but after about 5 days of uptime my dpc reaches around 12000-14000s and my sound starts crackling, i've updated all my drivers, i've updated my bios and everything else when using this guide How to Diagnose and Fix High DPC Latency Issues with WPA (Windows Vista/7/8) - Sysnative Forums i found out that what's eating up my latency seems to be usbport.sys however i have found absolutley nothing that might help me solve it. Does anyone have any idea of what to do? If you need more information from me just say so and i'll respond as soon as i see it.

My System SpecsSystem Spec
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11 May 2013   #2

Windows 7 Ultimate x64
 
 

no one who knows what to do?
My System SpecsSystem Spec
11 May 2013   #3

Windows 8.1 Pro | Windows 7 Home Premium 64-bit SP1
 
 

Slappy,

Welcome to the forums. Please update your specs with the link in my sig. You stated you updated your BIOS, are all your chipset drivers updated too?
My System SpecsSystem Spec
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11 May 2013   #4

Windows 8.1 Pro | Windows 7 Home Premium 64-bit SP1
 
 

Also found this tip in a thread that might help

Latency
My System SpecsSystem Spec
11 May 2013   #5

Windows 7 Ultimate x64
 
 

All updated and no that fix does not work already tried it i do know that once i remove the controler that uses the usbport.sys in device manager my dpc drops, however it just takes a couple of days and it's back up again and i'm forced to do a reboot to get the dpc to lower because it keeps building up over a couple of days.
My System SpecsSystem Spec
11 May 2013   #6

Windows 8.1 Pro | Windows 7 Home Premium 64-bit SP1
 
 

did you try
Click Start --> Search for "Power Options" and open this control panel --> (on default "Balanced (recommended)" is selected) Choose "change plan settings" --> "Change advanced power settings" --> "Processor power management" --> "Minimum processor state" --> change setting to "100%


That is a really good rig you have.
My System SpecsSystem Spec
12 May 2013   #7

Windows 7, 64 bit Home SP1, Win 8.1.1 Pro 64 bit
 
 

Try the resplendence latency check program. It provides a more detailed description of what is happening compared to the DPC Latency Checker.

Resplendence Software - LatencyMon: suitability checker for real-time audio and other tasks
My System SpecsSystem Spec
12 May 2013   #8

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by Dude View Post
did you try
Click Start --> Search for "Power Options" and open this control panel --> (on default "Balanced (recommended)" is selected) Choose "change plan settings" --> "Change advanced power settings" --> "Processor power management" --> "Minimum processor state" --> change setting to "100%


That is a really good rig you have.
Yeap i've tried that already and thanks i built it this winter planning on having it lasting me for around 4 years before i'm gonna upgrade it to a better one :P, will probably buy a new GPU before that but other then that it's built to last .



Quote   Quote: Originally Posted by fireberd View Post
Try the resplendence latency check program. It provides a more detailed description of what is happening compared to the DPC Latency Checker.

Resplendence Software - LatencyMon: suitability checker for real-time audio and other tasks
Yeah i have latencymon to and i have tried it, it tells me the same thing as the windows tools and that is that it's usbport.sys that's causing it but not whati's making usbport.sys to cause it.


Also i uploaded the log of latencymon here so you can have a look.

http://slappy.rymdraket.net/pics/Drivers.txt
My System SpecsSystem Spec
12 May 2013   #9

Windows 7, 64 bit Home SP1, Win 8.1.1 Pro 64 bit
 
 

Here is one thread on that usbport.sys latency
DPC Latency USBport.sys
My System SpecsSystem Spec
12 May 2013   #10

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by fireberd View Post
Here is one thread on that usbport.sys latency
DPC Latency USBport.sys
Yeah i've checked that to, can't seem to find an answer there either to what is causing it, is there any program out there that can see what software might be using certain drivers, since the dpc builds up over time i don't think it's a faulty driver either since it seems unlikely that it would take days before it reaches the crackling and popping sound that comes from high dpc.
My System SpecsSystem Spec
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 Usbport.sys causes high DPC over time.




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