System Interrupts Spiking CPU

Looks like you got this matter under control.

If its not the CDROM then um stumped.

nope. it still spikes every 2 mins or so in DPC latency..... what else could it be? CDROM is excluded

ok, i figured out the causes i believe.... here are the drivers and such that are causing the DPC spikes.

ataport.sys
netbt.sys
USBPORT.sys
afd.sys
ntoskrnl.exe
dpclat_driver.sys
dxgkrnl.sys

how would i update these or fix them from giving high DPC?

Don't disable those or you'll crap your system out.

I don't know what dpclat_driver.sys is but the rest are system drivers.

Turn off Prefetch and let the system settle for a day or two until indexing and updates are finished. You shouldn't try to tweek a new system or try to benchmark it either. Let it stabilize by running it 24 hours, at least.

carwiz said:

Don't disable those or you'll crap your system out.

I don't know what dpclat_driver.sys is but the rest are system drivers.

Turn off Prefetch and let the system settle for a day or two until indexing and updates are finished. You shouldn't try to tweek a new system or try to benchmark it either. Let it stabilize by running it 24 hours, at least.

its been up for a week. i have index disabled. and i know i cant disable them. i was wondering if i could update them...? should i install the AMD chipset drivers? i thought windows update did that automatically....

You didn't follow the instruction for your motherboard, did you. The board drivers should have been the first thing loaded and updated. Windows Update does not normally update chipset drivers. It depends on what you have set for options. I wouldn't use them any way. They're likely older than the motherboard updates. Get your drivers from ASUS. They'll include INF installers that Windows needs to correctly deal with your hardware.

problem solved! i updated chipset drivers form AMD and no more DPC spikes! and system interrupts has dropped to <.05%. i ALWAYS thought windows update did that. Oooppps! anyway thanks guys for the huge help!

Good job Patrick!

Pass on your new found knowledge to someone else.

carwiz said:

Good job Patrick!

Pass on your new found knowledge to someone else.

lol thanks! glad i got it sorted out!