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Old 09-04-2009, 11:41 PM   #25
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Join Date: Dec 2007
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There is a Soundblaster driver (ctoss2k.sys) causing 10x as much DPCs than the other drivers (but mostly in the medium bucket range). Not sure if that is normal. Network related DPCs would disappear when you disable the devices in the BIOS or Device Manager. But you always have to check if DPC spikes actually coincide with crackling, it's still possible that the culprit is something completely different. What is DPClat.exe reporting and can you see intervals in the spikes? What is the OS?

Last edited by Ollie; 09-04-2009 at 11:43 PM.
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