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davy replied to MagicAndre1981's topic in Windows Tips 'n' TweaksHi MagicAndre1981, Would you mind having a look at my trace? http://cid-bf643cf5bc069a84.office.live.com/self.aspx/Documents/perf.etl I was getting high dpc latencies earlier but I narrowed it down to the smbus controller driver. After disabling the smbus controller device from device manager, dpc latencies are ok. However, upon resuming from sleep, something else seems to be causing delays on the bus. I have looked through the trace but I don't see anything irregular. win 7 x64 all drivers up to date