[How to get the cause of high CPU usage by DPC / Interrupt]

MEI stands for Intel® Management Engine Interface which belongs to Intel VPro. For home using you can disable it.

To see which other devices use IRQ 16 you can use the device manager in Windows (change the way Windows lists the device under view) or you can run msinfo32 to see the IRQs. I used the etl file to see it. Open the ETL with a double click, go to trace->"System configuration". There you also find a IRQ list. Now use the PNPtab to see what device you see under the IRQ list (under the IRQ list you only see the IDs).

Good, I was just going to disable it anyway. I'm going to have to speak with gigabyte about seeing what they can do. I didn't spend the extra $40 on the motherboard to have to use a PCIe x8 and only one card in order to have my 4 cpu cores.

Thanks for all the help magic!

[How to get the cause of high CPU usage by DPC / Interrupt]

It works when placed in the 2nd PCIe slot. It goes to IRQ 17 and interrupts go down to 7%. When I disable MEI they go away. If I could move the first slot to 17 and the second to 18 life would be great >.< What about the MEI? What else is conflicting with it on IRQ 16?

[How to get the cause of high CPU usage by DPC / Interrupt]

I'm using GA-P67A-UD4. It does have another PCIe slot but I was planning on SLI'ing in the near future. If I put it in the second slot and that does give it a new IRQ, would placing another card in the first PCIe stay with IRQ 16 or would it use the other?

[How to get the cause of high CPU usage by DPC / Interrupt]

Tried in bios and device manager and neither allow me to. My bios doesn't even give the option in pnp/pci configurations. Only option I have is pci latency timer

[How to get the cause of high CPU usage by DPC / Interrupt]

Aight, i got it to work you can ignore my private message

http://www.mediafire.com/?7z5d2gahxwv69ru here is my zipfile for the etl file

[How to get the cause of high CPU usage by DPC / Interrupt]

Hi Magic,

First, this has been most helpful, keep up the great work!

Second, I currently have 18% cpu usage due to hardware interrupts and dpc. Using process explorer and latencymon I figured out it was due to Nvidia driver and Intel Management Engine Interface. I updated both drivers (nvidia 266.77, 275.33, 280.19, 266.44)(MEI 7.0.0.1118) but the problem persists.

Trial and error has given me these results:

Both Nvidia and MEI enabled: 18%

Nvidia enabled MEI disabled: 16%

Nvidia disabled MEI enabled: 6%

Both disabled: .08%

I can live without the MEI but I am an avid gamer and need the graphics card! The card is an MSI GTX 560ti. Any thoughts on what I should do next? I plan on putting in my old GTX 260 and seeing if it's not the drivers themselves but the actual card.

Edit: CPU usage is at 19% with GTX 260 >.<