I just built a new PC a few months ago, and I've kind of been having this problem. It used to go away after a reboot, and be very rare, but now it's 100% repeatable. When I run something that stresses the CPU my ping to my router skyrockets. It becomes so jittery with pings from <1ms to 1000ms and sometimes host not reachable or general fault. The pings drop back down to <1ms when I turn off prime95. The affects me very much in online games, and if kept up long enough it eventually crashes the computer requiring a hard reset. Very rarely I get a BSOD, which usually complains about a hardware fault. I have some experience with this stuff before, but this is a bit of a stumper.
Everything is still in warranty besides the graphics card, but I swapped it with my 8800gt which I knew worked and still had the same issues.
With a bit of google-fu I think I may have narrowed it down to either the PSU or Motherboard, but I would like to hear some suggestions. Also I'm from Canada so RMA'ing costs me >$20 in shipping and a week+ without my desktop so narrowing down what part I need would be great help to me. Thanks!
You internet ping has absolutely nothing to do with your cpu or load.
Are you runing the ram at 2133mhz 9-11-10-28?
That's not really supported by Intel. Try Intel XMP profile or try them at 1600mhz 9-9-9-24.
70c is a bit hot, are you sure that's the hottest it's getting? What are you checking the temps with? Run Hardware Monitor while your gaming or whatever your doing to load the cpu and it'll recored how hot the cpu gets.
All I know is my ping shoots up when load goes up. Don't ask me why.
Ran was running at 2133mhz till I turned off my overclock. Running at stock FSB
and 70c is the hottest it gets when I monitor using programs like speedfan and hardware monitor and OCCT. If I use Asus's temperature monitoring program that came with the motherboard, I get only 55C. These temps are with the overclock, running at stock everything nothing goes over 60C.
Heres a screenshot that should explain everything.
HW Monitor was open during PSU Test in OCCT which runs linpack and a graphics card stress test at the same time. After that I ran prime95 for a hour, no errors. And then played Crysis for about 20 minutes. So these are my max temperatures. This is after I reset my bios by "reset to optimized defaults" so I assume everything is at stock.
I have ping open because it seems to be a good pre-crash warning. When my pings start shooting up the computer usually crashes soon after. No lockups yet today though.
Ok, so as I said earlier removing the wifi card has fixed my issue. So I assume that it was the wifi card's fault. I just got a new card today though and installed it and still have the same issue. When my graphics card is stressed by a game or some kind of 3d application, my ping shoots through the roof. Both the graphics card and WiFi are on PCI-E so does that have anything to do with it? Any suggestions on where to go from here? I'm going to try another PCI-E 1x slot.