Bluebomber4evr

only tst it without the discrete GPU. Do you still have issues or not? Sorry, I'm not sure what you mean by "discrete GPU." Is this referring to the GeForce card?

yeah, you have again spikes: Total = 7117 for module tcpip.sys Elapsed Time, > 4096 usecs AND <= 8192 usecs, 0, or 0.00% Elapsed Time, > 8192 usecs AND <= 16384 usecs, 8, or 0.11% Total, 7117 Have you tried it without the discrete GPU? Do you mean moving the card around? I need the GeForce for the games I play. The onboard video is of no use for games.

I've updated the BIOS and ran a trace. I sent you a link with my trace in a PM.The BIOS update doesn't seem to have fixed anything.

I didn't forget about this! I just got caught up in the middle of a project and didn't want to risk boot problems before I was done if updating the BIOS went south. I'm going to try the BIOS update first, because I do play games so the on-board Radeon isn't really an option. I will move the cards around as a last resort, mainly because I'm worried that moving the video card lower will give it less airflow.Anyway, I'll do another xperf trace after updating the BIOS and PM it to you.

All of the offloading settings were already enabled. The only other PCIe slot on the motherboard is blocked by the video card -- the video card is in the slot designated for vid cards in the motherboard manual, and its fan is large enough to basically take up 2 slots (Geforce 9800 GT). The motherboard has an on-board Realtek LAN, but the DPCs were much worse when it was enabled (which is why I bought the Intel card).

Downloaded and installed the latest drivers for the Intel ethernet card and nothing's changed. I will PM you the new trace. Should I try to see if there's an update to my BIOS?

okay, I've done a second trace and PMed you with my dropbox link I didn't see anything different from the last report. Any ideas?

Okay, I see how I had got it overclocked now, I had set the system to "optimal" in the EZ version of the BIOS which apparently automatically overclocks the system (it would have been nice if the manual made it clear that overclocking would occur if that was picked!). I've set it to normal mode and checked in the advanced BIOS and it is now set to the correct frequency of 3.6 ghz. Should I run another xperf now that overclocking is off?

the largest spikes are caused by the tcpip.sys, others by the ATAport and NDIS.sys. Update the network card drivers. the hal issue may come from your OC. Don't OC the AMD CPU so much. 4.3GHz seams to be too much. Hmm, I am using the latest drivers for my network card, though.I wasn't aware I was overclocking! O_O I just left the motherboard's default settings on. How do I change that?

Hi, Andre. I've registered here because I've tried all sorts of tweaks and changes I've found on the internet and you seem to be the only person around who knows how to actually fix DPC latency problems. Here's the basics of my system: Motherboard is ASUS F2 A85-V Pro OS is Windows 7 SP 1 64-bit I've run the xperf based on your tutorial in the first post, and the culprit seems to be the hal.dll and related to HPET. Unfortunately, there doesn't seem to be any way to disable the HPET in the bios (the manual certainly isn't any help here). I tried instead to sync up the Windows 7 timer with the HPET but that didn't change anything. Any advice? Should I PM you my trace.etl file?