[ChristSavesU2]

Hi,

I have a Gateway SX2800-07 desktop with Windows 7 64bit operating system. I have had the similar issue of occasional high system interrupts that slow my system down. I have updated all the drivers that I can find and still haven't solved the problem.

You can view my traces at www.willowproperties.net/1temp.pdf and I have attached that file here as well.

Any advice would be appreciated.

Attached File(s)

•  1temp.pdf (307.03K)
  Number of downloads: 10

[MagicAndre1981]

I need the etl file. The usbport.sys is the cause. So update the mainboard drivers and all drivers for your USB devices.

[shadetree]

Thank you very much for this tutorial Andre

I have a HP Pavilion a1267c MS-7184 Mainboard with now unsupported ATISB400 chipset, no BIOS update past 3.47. The USBPORT.SYS was maxing one of my AthlonX2 4800+ cores after installing Windows 7 Pro. It didn't slow things down much but the CPU fan was at mid rpm all the time. I had to disable the USB's before things went bask to normal.

I am triple booting XP, Vista and 7 with no issues with the other OS's and thinking I will use a add in USB card and continue to test 7.

Posting this....I just realized that I will not be using any of the MOBO onboard devices now. My HD GPU, HD Audio, GB Net and now USB are all add in cards.

Again Thanks

[MagicAndre1981]

and using the other USB card solves it?

[shadetree]

Booting Win7 the USB disabled in device manager CPU 0&1 0-3% at idle. USB enabled CPU 0 is 15ish % and 1 is always 100% at idle.

To test this theory, I will try a Win7 supported chipset PCI 4 ? port USB adapter with 4 ? pin headers, to replace the MOBO's.

If this is a solution it would help others too.

I will post back the results.

[shadetree]

OK, My theory was correct with Win 7 and the USB drivers for the ATI SB400 chipset. I left them disabled in device manager.

Then successfully installed a StarTeck PCIUSB7 card with VIA 2.2 controllers, it has 4 exterior USB-A ports and a interior USB-A port and USB double pin header totaling 7 ports. I wanted this card because of the controller and the double pin header.

Then I added a NZXT IUO1 internal USB expansion board feeding it from the StarTeck’s USB double pin header and a 5v power insert from the PSU with the included cables. It adds three double pin headers and two USB-A ports.

Now I was able to add my card reader and the other 3 front USB ports with 1 header pair left over. The two remaining USB-A ports I added my Bluetooth dongle on one of them.
At idle the CPU is 0/3 % and a very noticeable increase in performance now that I didn’t ever know I had after installing Win7.

I included some screen shots after the install.

Thanks again for this post and I hope some will benefit.

Attached File(s)

•  Win7 Task Manager.jpg (149.13K)
  Number of downloads: 13
•  Win7 Device Manager.jpg (130.96K)
  Number of downloads: 14

[MagicAndre1981]

thanks or the feedback. So some chipsets (ATI, nVIDIA) have some USB issues under Windows 7.

[Neurox]

Hi everyone!

I have similar problems like couple people here. My culprit process is ndis.sys 16.71 percent of actual duration. I have an intel 5100 agn wifi in my vaio laptop. When I turn off the wireless and plug the cable into my NIC ndis.sys is the problem still but not as much as by wireless connection.

But, I only have problem when I am downloading with uTorrent or anything, but mostly with utorrent when I am above 1 megabyte/sec. When my computer is idle no problem. I know that this may be because of the bad network drivers but I have the latest ones so I dont know what to do. I inserted an image when I am downloading with utorrent. This time the cpu usually eats 20-25% when Im downloading with 2-2.5 megabyte/sec.

my specs: Intel Core2Duo T6600, 4GB ram, ati hd 4650

Thanks for your help!

xperf results: (http://www.speedysha...360/Capture.PNG)

This post has been edited by Neurox: 26 August 2010 - 04:21 PM

[MagicAndre1981]

this happens when you use cheap onboard network chips. On my old Pentium M laptop the NDIS usage is also very high when I download with 2MB/s.

[year2525]

Hi, first off, I've read through the thread and want to say thanks for all the great help you offer!

The reason I wanted to check were the red peaks in the DPC Latency Checker below.
This occurs on an i7 920 12GB with no application running.

I've followed the steps and the summary table gives me the attached result.

Not sure what to make of it. There was someone before who had a problem with hal.dll
but the solution was not posted in this thread.

I went through my drivers manually and tried to update but Windows says they're all up to date.

...sorry, I'm an audio not a PC guy...

Any help much appreciated!

Attached File(s)

•  DPC + Interrupt CPU.png (288.35K)
  Number of downloads: 16

[year2525]

So, I thought I had sorted the problem out but after a restart it got just as bad again.

Sorry, but I've got no idea what I should make out of this...

Attached File(s)

•  DPC + Interrupt CPU 2.jpg (406.35K)
  Number of downloads: 7

[Neurox]

MagicAndre1981, on 26 August 2010 - 04:42 PM, said:

this happens when you use cheap onboard network chips. On my old Pentium M laptop the NDIS usage is also very high when I download with 2MB/s.

So the intel 5100 agn a load of sh*t :S? Actually Im sure that the driver is because there were some BSOD issues with the previous drivers, the next one solved but...as u see. So what I sent you the image about the processes in xperf shows that the problem is with the network drivers nothing else ?

[goran181]

Hi all!

Recently DPC's start to happen on my dedicated server, I followed the tutorial and found out that :

tcpip.sys - function : TcpPeriodicTimeoutHandler is causing the high cpu usage.
I updated the server with the broadcom latest drivers from DELL Support center.

Could anyone give me a hint which driver should be updated?

ETL Download link

thanks!

This post has been edited by goran181: 27 August 2010 - 02:16 AM

[MagicAndre1981]

@year2525 provide the trace please.

Neurox, on 26 August 2010 - 05:56 PM, said:

So what I sent you the image about the processes in xperf shows that the problem is with the network drivers nothing else ?

mostly. I may also be a networking related software like Firewall

@goran181

you have an issue with the TCPIP.sys, so please update the Broadcom BCM5708C driver please.

[goran181]

MagicAndre1981, on 27 August 2010 - 12:38 PM, said:

@year2525 provide the trace please.

Neurox, on 26 August 2010 - 05:56 PM, said:

So what I sent you the image about the processes in xperf shows that the problem is with the network drivers nothing else ?

mostly. I may also be a networking related software like Firewall

@goran181

you have an issue with the TCPIP.sys, so please update the Broadcom BCM5708C driver please.

Thanks! Solved

[MagicAndre1981]

and? Was it the broadcom driver?

[year2525]

Hello Andre, thanks a lot for your help.

I ran the programs again and this is the result:

Attached File(s)

•  DPC Interrupt Summary.jpg (472.56K)
  Number of downloads: 11

[MagicAndre1981]

please give me the etl file, not the pictures. Also stop the DPC latency checker during the trace

[year2525]

MagicAndre1981, on 29 August 2010 - 05:23 AM, said:

please give me the etl file, not the pictures. Also stop the DPC latency checker during the trace

Sorry, I ran it again now with DPC Checker off.

The file is 78 MB...

Uploading now. PMing the link.

Or should I run the test for a shorter time period?

[year2525]

Couldn't send a PM, so here goes:

http://www.file-uplo...errupt.etl.html