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DPC flood after wakeup

post #1 of 4
9/22/08 at 9:30pm
Thread Starter 
Hi,

I have an HP DV6000 laptop with the Nvidia nForce 430 chipset. Consistently after waking up from sleep or hibernate, I am getting a flood of Delayed Procedure Calls and hardware interrupts using 10-20% of CPU time which continues indefinitely (until a reboot).

I just discovered that if I go into the device mananger and disable the nForce networking controller, the DPC flood stops instantly and does not return after sleep or hibernate. Anyone have any idea as to why this is happening or how I could fix it? I just downloaded and installed the latest ethernet driver software from the Nvidia website and the device manager is now reporting driver version 65.7.4.0 dated 5/3/2007. Op system is Vista Home Premium.

Thanks,

Jon Snow
Detroit, MI USA
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post #2 of 4
9/24/08 at 5:20pm
how about reviewing your startup processes and services? throw out anything that you dont need? what virus software are you using?

cheers ...
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post #3 of 4
9/27/08 at 12:38pm
Thread Starter 
I'm using AVG anti-virus, but I'm sure that's not the problem. I

n the process of debugging this I actually used the Process Explorer to shut off ALL applications, and most of the services. No effect on the DPC flood. I then went into the device manager and started shutting stuff off and when I got to the ethernet controller the flood stopped. Did it a few times to verify (leave all processes running and shut off just the controller) and it works every time.
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post #4 of 4
9/30/08 at 8:26pm
have you also verified that the option to turn off the device to save power is being disabled? What about Vista SP1?

cheers ...
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