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PC crashes in fsx

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My pc passes 12 orthos and 15 hours in memtest. But every time I load the lds 767 in dfw the pc crashes after 5 mins. Please help me, these problems after problems with hardware are really turning me off to pc flying. Thank god im flying for real tomorrow!

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Hi Mike, sorry to hear. Crashes after a couple of minutes are often heat related. Second thought in your case, maybe the GPU drivers? I say GPU because the basic system RAM/CPU seems stable. So, something 3D but what? Any extra fans in the case? Specially, are the mainboard chipsets sufficiently cooled? Good luck and kind regards Jaap

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Yes I believe they are, im using the stock chipset fan, re-applied tim to the mosfets and chipset recently. The gpu is not overclocked at all.

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Ok, what kind of crashes? Blue screen, freezes? Rgds Jaap

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The sound makes a weird stuttering noise and then the pc will just reboot. Thanks for the help.

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Hi Mike, welcome. Sound hisses etc are an indication your chipsets are overheating. Alternatively and seen your overclock, maybe you need to raise their voltages one more tick? If you have a room fan and blow loads of air into the (obviously open) case, can you reproduce it? Under 'Startup and Recovery' ('System' --> 'Advanced' in the 'Control Panel'), you can suppress automatic reboots by unchecking 'Automatically reboot'. Good luck again and kind regards Jaap

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Talking about the raising Volts,Mike, with the overclock did you also add voltage to your DIMMS?@Jaap, you got my mail? not from 30Gigs.[i/]

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Hi Davissan, thanks for the pointer and no. Did you send it to my very lonely Swiss account? :-) Anyway, will check ASAP. How are your upgrades coming along? Cheers and kind regards Jaap

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Hello again davis, The NB voltage is all the way up (the nb is the spp not the mcp right?), Ive got decent case airflow, 2 fans in back 1 in front, the memory is cooled with a dominator memory fan the dimms are at 2.25v and they passed a 15 hour memtest session, so I dont think they are the problem. Can those stuttering reboots be cause by anything other than the chipset? I haven't heard of too many people having overheating issues with this board once they attach the included nb fan.

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Just did a reinstall of fsx because I had two version and was concerned things were a little sloppy, during a test run i didn't get a reboot but instead fsx crashed, the module was livingwater.dll. Then as it crashed I looked in the system tray and noticed a caution symbol, it said virtual memory was to low, I had it set to 3000mb, thought it would be enough with 2 gb of ram, but now I set it to system managed size.

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Just tried it out with system managed page file. Got the sound stutter again, this time it didn't reboot. The screen went black, and it said power saving mode, just like when it reboots, but it didn't actually reboot. When the screen went black the stuttering stopped. Could this somehow mean video card failure?

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Hi Mike, silly question :-), is your PCI-e frequency locked? Have you tried running FSX without sound? Or, what happens if you minimize the overclock? Good luck and kind regards Jaap

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Well the pcie frequency is set to 100 mhz in bios, I have not tried fsx without sound, ill try that next. If the pc is prime stable and memtest stable why would the overclock cause a problem? I also tested the psu rails with a multimeter this morning, the 3.3v, 5v, and 12v readings were all fine, so the psu is not the problem.

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Just did another test with the audio chip disabled, didnt solve the problem.

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>>If the pc is prime stable and memtest stable why would the overclock cause a problem?<< These programs don't do sound and 3D too. ;-) As far as I would dare to judge we're already narrowing the prob down to 2 components, if... Perhaps try with a lower multiplier now? If the prob goes away it was likely heat, if it pertains go even lower. It's really weird, your system looks so solid with all the cooling etc. Good luck and kind regards Jaap

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Thanks for the continued help, I appreciate it. The problem was actually voltage, but it was too high, not low! I read on extremesystems that evga 680i's sometimes do better with decreased voltage, so I lowered the ram and chipset voltage and i've been testing on occt. Before this I tried occt and it lasted 9 mins, its been going for about 2 hrs.

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Excellent! Compared to your memstatus stresstest, the overvoltage and increased chipset activity (sound & HD I/O) probably lead to overheating. Only noticeable ingame. Now it makes perfect sense, doesn't it? :-) Cheers and kind regards Jaap

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Haha, yes it does, it looks good now, going on 16 hours occt testing.

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Excellent! How is FS fairing now? Cheers and kind regards Jaap

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It failed just after after 16 hours, But thats good enough. Im really impressed with the frame rates in fsx, there is a great guide in the pmdg ops website that has really helped me. FSX is smooth with the lds 767 with all the sliders full right. Just turned off light bloom and moved water to low 2x and my fps are smooth all around.

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Hey Mike,Sorry for the late response, I had to go back to "Class" had some recertification classes to do, haven't had time to check here. Anway glad to see that its semi-solved. So what are you voltages now?

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Hey davis, the cpu voltage is about 1.556 under load after vdroop, ram is 2.25, nb is 1.45 and sb is 1.65. Im gonna try a flight from dfw to mia today and see how it all works out.

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Well the fun was short lived, the freezes are back, no reboots this time, just a stuttering freeze. I had two of them, the second one made the monitor go out again, it was black with a small message saying input signal out of range. Im really starting to think the gpu is going. Im gonna try setting pcie to 120 and see what happens.

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Still froze, this time the screen didn't go black. I got 8 fps out of it though, so not too bad. Im gonna try bringing the oc down to 3.7.

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Mike,Leave the PCIe bus alone, raising it up to 120 doesn't do anything major, and will in some cases even lock up the system. Leave it and lock it at 100. Have you already tried loosening up your DIMM timings?And go here, http://www.techpowerup.com/downloads/392/I...lysis_Tool.html download TAT. When you run it, press start on both cores and let it run for about 15min and tell me if it either gave you a hardlock, CTD or Bluescreen. If it didnt do any of those, tell me what the highest recorded temperature was.

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