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Computer BSOD during rendering
show user profile  zeefusion
For the hardware Guru's out there, I recently built a computer which is the following spec:

1 x Asus P9X79 Socket 2011 8 Channel Audio ATX Motherboard
1 x Intel Core i7 3930K 3.20GHz Socket 2011 12MB Cache
2 x Corsair XMS3, 16GB kit (2x8GB) DDR3 1600MHz Unbuffered CL 11 DIMM Memory for Intel Core i3, i5, i7 Dual Channel platforms
1 x OCZ 128GB Vertex 4 SATA III SSD
1 x Corsair TXM 850W Modular PSU
1 x Noctua NH-D14-2011 Dual Radiator Cooler with PWM fans
1 x WD 2TB 3.5" SATA-III 6GB/s Caviar Green Hard Drive - 64MB Cache
1 x Samsung SH-222BB 22x DVD±RW DL & RAM SATA Optical Drive
1 x Fractal Design Define XL Case Titanium Grey
2 x Fractal Design 120mm Silent Series R2 Case Fan
1 x Microsoft Windows 7 Professional w/SP1
1 x Fractal Design 140mm Silent Series R2 Case Fan
2 x Acronis True Image Personal - OEM
1 x NVIDIA GTX 690

The processor was overclocked to 4.4 with a stable temperature of 65 degrees at full load. Ran various benchmark tests and stress tests using Prime 95 etc and all was fine with no BSOD. Started using the PC to render and all was fine until one day the PC BSOD during a render.

This now started happening more frequently but only for certain scenes. For example if I was rendering a scene without ExtraTex and VRayDirt for an AO pass the render would complete however with the AO pass the render would crash. I found this to be very odd as I thought a PC is under 100% heavy load whether it is rendering a simple scene or a more complex scene (that is likely to take longer). It would also crash very soon after pressing render so it wasn't like it was going for hours or anything.

Carried on rendering other scenes and they rendered fine until I came to a scene where I was using VRayFog. It would crash when scatter GI is on but render fine when it was off. I am convinced this is not a software issue so I started to investigate the hardware.

I ran WHO Crashed to look at the BSOD is more detail and noticed it was not the same error each time, they appeared to be randomly different:

BAD_POOL_HEADER
KMODE_EXCEPTION_NOT_HANDLED
DRIVER_CORRUPTED_EXPOOL
CLOCK_WATCHDOG_TIMEOUT

The clock watchdog timeout was more frequent than the others. So I removed the overclock and resulted back to default settings. I ran the render that had the AO and it rendered fine, result! Then I ran the render that had the fog and it crashed :(

Never have I scene this behavior before and I am thinking it is to do with the RAM, as there is 32GB in there I think the timings could be incorrect. My next move is to take out all sticks bar one and see if it renders fine on just 8GB. Then I know if it is the RAM.

If not the RAM then it could be a driver error, however I recently wiped my PC and started again with all latest drivers and software updates so I am doubting it is a driver error even though Who Crashed some times thinks it is. I am thinking because the RAM is not right it is causing all sorts of errors.

I thought I would post my issue here as it only seems to relate to rendering as playing games or running stress tests are all fine. Does rendering use the PC hardware differently compared to say running prime 95? Weird that it only crashes during renders.
read 1067 times
7/10/2013 9:56:04 AM (last edit: 7/10/2013 9:58:09 AM)
show user profile  zeefusion
Oh and tested the scenes that crash on a different PC and they render fine so it is not the scene.
read 1059 times
7/10/2013 10:01:56 AM (last edit: 7/10/2013 10:01:56 AM)
show user profile  Nik Clark
Have you tried the Memory test on the Windows install disk (or memtesst)?

Sounds like memory.



read 1038 times
7/10/2013 10:53:23 AM (last edit: 7/10/2013 10:53:23 AM)
show user profile  Sir_Manfred
What graphics drivers are you using? (Don't use the corrupt ones)



Visit my Portfolio
http://www.Freds3D.com

read 1036 times
7/10/2013 10:54:06 AM (last edit: 7/10/2013 10:54:06 AM)
show user profile  Sangre
Do you monitor the CPU temperature while rendering? 65 degrees are suspiciously low for this high overclocking...
read 1035 times
7/10/2013 10:54:13 AM (last edit: 7/10/2013 10:54:13 AM)
show user profile  zeefusion
Yeah monitor the temps all the time. Have custom fan profiles that kick in at set temperatures. 4.4 OC is mid 60's and stock is mid 50's.
read 1029 times
7/10/2013 11:04:02 AM (last edit: 7/10/2013 11:04:16 AM)
show user profile  Sangre
I'd say it's either faulty RAM or Nvidia driver. Try unplugging some RAM sticks or old 314.22 driver for your graphics card.
read 1024 times
7/10/2013 11:21:08 AM (last edit: 7/10/2013 11:21:08 AM)
show user profile  zeefusion
Yeah unplugging RAM is my next thing. Not really sure about NVIDIA drivers as I have tried the GTX 690 with different drivers versions and they all crashed. Also with a fresh install of Windows 7 and a fresh new driver install it crashed.

I would have thought others would report having same issue if it was a GPU error.
read 1024 times
7/10/2013 11:25:03 AM (last edit: 7/10/2013 11:25:03 AM)
show user profile  mike_renouf
This is purely "a mate told me" kind of info, but I did hear that there is a whole generation of drivers for NVIDIA GTX cards which were recently issued and had a massive bug in them. It would be worth checking those asap and maybe rolling back.




read 1013 times
7/10/2013 3:32:28 PM (last edit: 7/10/2013 3:32:28 PM)
show user profile  Nik Clark
Mike, your friend was right. There was even an Nvidia driver in the wild that would damage GFX cards. It was replaced within a day with fixed drivers.



read 1007 times
7/10/2013 4:13:33 PM (last edit: 7/10/2013 4:13:33 PM)
show user profile  Westcoast13
Yep...

http://www.maxforums.org/threads/random_freezes/0001.aspx



My Turbosquid Area

read 1002 times
7/10/2013 4:24:00 PM (last edit: 7/10/2013 4:24:00 PM)
show user profile  soontekk
over- or underclock it and check if it is more stable

melting ur brainz!
/ FOS4 / FO2 / Blurb / Twitter / Facebook / Vimeo /


read 987 times
7/10/2013 7:50:35 PM (last edit: 7/10/2013 7:50:35 PM)
show user profile  Boomer
I agree. Change to standard clock settings... the render passes maybe stressing your 8 cores harder and longer than other tests you done. Could either be an overheating issue or a timing issue that is creeping in as a result of overclocking....

  Mathew Kaustinen
 http://www.boomerlabs.com

read 974 times
7/10/2013 11:05:07 PM (last edit: 7/10/2013 11:05:07 PM)
show user profile  Nik Clark
Good god, it's Boomer!




read 970 times
7/10/2013 11:31:21 PM (last edit: 7/10/2013 11:31:21 PM)
show user profile  Boomer
Shucks Nik! Thanks for noticing, it's good to be back :)

  Mathew Kaustinen
 http://www.boomerlabs.com

read 960 times
7/11/2013 4:24:12 AM (last edit: 7/11/2013 4:24:12 AM)
 
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