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Hello everyone,

Don't really want to flood the forum or anything, but I seem to have a problem with my PC. Just as the title says, my computer crashes while rendering.

I've done some 3D renders of low- to medium-poly models without really complicated geometry in the past and everything has been working properly. However I've recently finished modelling a high-poly object which I really want to render. But the PC starts working on it, then crashes into a blue screen with a crash dump.

I've tried several different rendering programs and it happens with all of them. Sometimes it even crashes in pre-render phase, while I am setting the lighting options and such.

I'm guessing the problem lies in the hardware, maybe in RAM or CPU. But I don't have enough knowledge to confirm/deny that, which is why I came here. I don't think the problem could be heat-related since the chrashes happen 1-5mins from the start of rendering.

The PC specs are as follows:
CPU: AMD Phenom 9850 Quad-Core 2.5GHz (poorly ventilated, not overclocked)
Motherboard: ASUS [color=#000000][font=arial, sans, sans-serif][size=3]M2N68-AM[/size][/font][/color]
[color=#000000][font=arial, sans, sans-serif][size=3]PSU: Aero Cool E80-700 700W[/size][/font][/color]
[color=#000000][font=arial, sans, sans-serif][size=3]GPU: ATI Radeon HD 7850 (overclocked, dual fans)[/size][/font][/color]
[color=#000000][font=arial, sans, sans-serif][size=3]RAM: 4GB (can my motherboard support more?)[/size][/font][/color]
[color=#000000][font=arial, sans, sans-serif][size=3]OS: Windows 7 Ultimate 64bit[/size][/font][/color]

I think that pretty much covers my problem. Any help would be appreciated.

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Posted

[quote name='Redix' timestamp='1357511789' post='595437072']
Hello everyone,

Don't really want to flood the forum or anything, but I seem to have a problem with my PC. Just as the title says, my computer crashes while rendering.

I've done some 3D renders of low- to medium-poly models without really complicated geometry in the past and everything has been working properly. However I've recently finished modelling a high-poly object which I really want to render. But the PC starts working on it, then crashes into a blue screen with a crash dump.

I've tried several different rendering programs and it happens with all of them. Sometimes it even crashes in pre-render phase, while I am setting the lighting options and such.

I'm guessing the problem lies in the hardware, maybe in RAM or CPU. But I don't have enough knowledge to confirm/deny that, which is why I came here. I don't think the problem could be heat-related since the chrashes happen 1-5mins from the start of rendering.

The PC specs are as follows:
CPU: AMD Phenom 9850 Quad-Core 2.5GHz (poorly ventilated, not overclocked)
Motherboard: ASUS [color=#000000][font=arial, sans, sans-serif][size=3]M2N68-AM[/size][/font][/color]
[color=#000000][font=arial, sans, sans-serif][size=3]PSU: Aero Cool E80-700 700W[/size][/font][/color]
[color=#000000][font=arial, sans, sans-serif][size=3]GPU: ATI Radeon HD 7850 (overclocked, dual fans)[/size][/font][/color]
[color=#000000][font=arial, sans, sans-serif][size=3]RAM: 4GB (can my motherboard support more?)[/size][/font][/color]
[color=#000000][font=arial, sans, sans-serif][size=3]OS: Windows 7 Ultimate 64bit[/size][/font][/color]

I think that pretty much covers my problem. Any help would be appreciated.
[/quote]

You need to remove your GPU OC before you can continue troubleshooting, anything OC'd can cause bluescreens

Also install something like coretemp to monitor your temps while you render

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Posted

I don't really know how to remove over-clocking. I bought my GPU overclocked and it came with a bunch of software for monitoring and regulating purposes. I don't know the stock clocks on this card.

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Posted

If it came that way...remove the GPU and attempt to render the 3D again....if it dosen't blue screen RMA the GPU it could be a case of over heating.

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[color=#282828]CPU: AMD Phenom 9850 Quad-Core 2.5GHz ([/color][color=#ff0000][b]poorly ventilated[/b][/color][color=#282828], not overclocked)[/color]

[b]NEXT![/b]
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[quote name='xendrome' timestamp='1357512436' post='595437098']
[color=#282828]CPU: AMD Phenom 9850 Quad-Core 2.5GHz ([/color][color=#ff0000][b]poorly ventilated[/b][/color][color=#282828], not overclocked)[/color]

[b]NEXT![/b]
[/quote]

People need to understand, if you don't get good air flow around the CPU your going to kill the machine.....try wrapping your head in 3 or 4 scalfs then go to the gym...you're gonna collapse.

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I would look at the CPU and GPU temps. Also try running memtest to make sure the ram isnt taking a dump on you. Try running a benchmark also like 3d mark just to rule out the OC on the GPU as well.

Try and post a screen shot of the BSOD if you can. That will also help.

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[quote name='Lilrich' timestamp='1357512336' post='595437094']
remove the GPU and attempt to render the 3D again
[/quote]

What do you mean? Just to remove the GPU entirely from the case and try to run the render that way? Will it even work?

[quote][color=#282828][size=3]CPU: AMD Phenom 9850 Quad-Core 2.5GHz ([/size][/color][size=3][b]poorly ventilated[/b][/size][color=#282828][size=3], not overclocked)[/size][/color]


[b]NEXT![/b][/quote]

Even though it's poorly ventilated as I mentioned, it has never suffered from excess heat and the temperature readings have always been low enough. The CPU has a little fan on it, not sure about the effectiveness of it.

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[quote name='Redix' timestamp='1357512703' post='595437108']
What do you mean? Just to remove the GPU entirely from the case and try to run the render that way? Will it even work?



Even though it's poorly ventilated as I mentioned, it has never suffered from excess heat and the temperature readings have always been low enough. The CPU has a little fan on it, not sure about the effectiveness of it.
[/quote]

Problem is now you are stressing the CPU more than likely almost to it's limit....you are rendering 3D we are not talking about burning a few dvd's 3D rendering is crazy on the CPU

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[quote name='Redix' timestamp='1357512703' post='595437108']
What do you mean? Just to remove the GPU entirely from the case and try to run the render that way? Will it even work?



Even though it's poorly ventilated as I mentioned, it has never suffered from excess heat and the temperature readings have always been low enough. The CPU has a little fan on it, not sure about the effectiveness of it.
[/quote]


How do you know your GPU is overclocked if you don't know how to remove the OC ?

You should also stick a fan at the front of your case sucking in, and a fan at the back blowing out, that way you always have a 1 directional airflow moving hot air out and cool air in

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The GPU is over-clocked by ASUS and I can manually tweak the clock speeds with the software provided, so I assume it's a legit OC (it even says it on the packaging). I can max out the GPU Clock at 1050MHz, GPU Voltage at 1165mV and Memory Clock at 5800MHz.

Ever since the last Windows reinstall in autumn I haven't been monitoring the temperatures. Can you recommend the best tool for the job?

[quote name='YanksOnTop' timestamp='1357512628' post='595437106'] I would look at the CPU and GPU temps. Also try running memtest to make sure the ram isnt taking a dump on you. Try running a benchmark also like 3d mark just to rule out the OC on the GPU as well. Try and post a screen shot of the BSOD if you can. That will also help. [/quote]

Please tell me how to do the memtest and benchmark, I've never done it before. Also, what's a BSOD?

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Posted

Firstly the GPU is unlikely to be the culprit if he's rendering, he hasn't specifically mentioned what render suite(s) he's using, but they all crash, and most render suites won't use the GPU for rendering, unless specifically set to it and most can't even then.

HE probably hit on the problem in his first post. bad memory. Rendering especially high poly rendering uses a LOT of memory, in fact it's probably the first time he's ever been close to using all of his computers memory.

DO you have 1 4GB stick or 2 2GB sticks ? if it's 2 sticks, remove one at a time and check.

also what resolution are you rendering the output at ?

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[quote name='Redix' timestamp='1357513290' post='595437120']
The GPU is over-clocked by ASUS and I can manually tweak the clock speeds with the software provided, so I assume it's a legit OC (it even says it on the packaging). I can max out the GPU Clock at 1050MHz, GPU Voltage at 1165mV and Memory Clock at 5800MHz.


[/quote]

If you have not moved the sliders for the OC, then it is a factory OCd card from ASUS, if you have moved the sliders, then it is a Custom OC by you

Put the sliders to where ever they were when you got the card, or disable the overdrive check box and hit apply

BSOD = Blue Screen Of Death


[b]For monitoring[/b]

GPUz - GPU temps
CPU-z or coretemp - CPU temps

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[quote name='HawkMan' timestamp='1357513492' post='595437128']
Firstly the GPU is unlikely to be the culprit if he's rendering, he hasn't specifically mentioned what render suite(s) he's using, but they all crash, and most render suites won't use the GPU for rendering, unless specifically set to it and most can't even then.

HE probably hit on the problem in his first post. bad memory. Rendering especially high poly rendering uses a LOT of memory, in fact it's probably the first time he's ever been close to using all of his computers memory.

DO you have 1 4GB stick or 2 2GB sticks ? if it's 2 sticks, remove one at a time and check.

also what resolution are you rendering the output at ?
[/quote]

My main renderer with which I work with is Keyshot 2, but Vray, Indigo and others failed too. I have 2 sticks of 2GB of RAM. But how does removing one stick at a time help me? Do you think one of them could be corrupt or something?

[quote name='Detection' timestamp='1357513619' post='595437142']
If you have not moved the sliders for the OC, then it is a factory OCd card from ASUS, if you have moved the sliders, then it is a Custom OC by you

Put the sliders to where ever they were when you got the card, or disable the overdrive check box and hit apply

BSOD = Blue Screen Of Death


[b]For monitoring[/b]

GPUz - GPU temps
CPU-z or coretemp - CPU temps
[/quote]

I have tried rendering with various clock settings and it's still the same, although maybe I didn't try rendering with stock clock speeds.

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[quote name='Redix' timestamp='1357513949' post='595437150']

I have tried rendering with various clock settings and it's still the same, although maybe I didn't try rendering with stock clock speeds.
[/quote]

Well my last 6850 would crash either the display driver or the machine if I even OCd 1MHz


Again, you can not troubleshoot an OCd machine, I`m not saying it is 100% the GPU, but you need to have everything @ stock

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Posted (edited)

[quote name='Detection' timestamp='1357514042' post='595437162']
Well my last 6850 would crash either the display driver or the machine if I even OCd 1MHz


Again, you can not troubleshoot an OCd machine, I`m not saying it is 100% the GPU, but you need to have everything @ stock
[/quote]

Would setting the clock speeds to stock card speeds (from google) do the job?

EDIT: Well, as it turns out, I cannot go below Memory Clock speed 3880 MHz and google says the stock speed is 1200MHz, so...yeah Edited by Redix

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Posted

Go download memtest86 and burn a cd from it. Pop the CD in and reboot the computer and boot to the CD. Run the test with 1 stick at a time them pop them all back in if they pass and run a test with them all in. That will rule out the Ram for sure.

A screenshot of the blue screen would be a big help also. But rule out he ram first. Trust me.

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Alright, I understand what I have to do, but I'm not doing all of that testing until tomorrow because it's really late now :) 1:30 is a bit too late for that kind of work, don't you think?

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[quote name='Redix' timestamp='1357514206' post='595437170']
Would setting the clock speeds to stock card speeds (from google) do the job?

EDIT: Well, as it turns out, I cannot go below Memory Clock speed 3880 MHz and google says the stock speed is 1200MHz, so...yeah
[/quote]

Just uncheck the Overdrive option in CCC and hit apply, the card will drop to its factory clock speeds


[img]http://localhostr.com/files/Zty3Wez/Capture.PNG[/img]

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[quote name='Detection' timestamp='1357514892' post='595437204']
Just uncheck the Overdrive option in CCC and hit apply, the card will drop to its factory clock speeds


[img]http://localhostr.com/files/Zty3Wez/Capture.PNG[/img]
[/quote]

Oh, that thing. Right. Just a moment. A test result without OC and possibly a photo of BSOD (not sure how you screen it) coming in a few minutes.

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So, I was surprised when it reached 15% of the rendering process...but then it crashed again, so removing the OC doesn't seem to help. Also, the BSOD.

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[quote name='Redix' timestamp='1357517028' post='595437234']
So, I was surprised when it reached 15% of the rendering process...but then it crashed again, so removing the OC doesn't seem to help. Also, the BSOD.
[/quote]

[b]Stop 0

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[quote name='YanksOnTop' timestamp='1357527984' post='595437470']
[b]Stop 0

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[quote name='Redix' timestamp='1357573744' post='595438220'] Hopefully the problem is one of my regular RAM units and not motherboard RAM or anything like that. That would be an excuse to buy more RAM. Though what I did today was I opened the case to provide better ventilation for any components that could be overheating. I started rendering once again, and checked if there was any excessive heat coming from somewhere. No, there wasn't. And the air coming from the fan on the CPU is just mildly warm under full rendering. So maybe we can abandon the overheating theory. [/quote]Using your PC with the side panel off will only disrupt the normal airflow of the PC and make it not as cool as it could be; it's a very poor way of measuring temperature.

And I don't know what you mean by regular RAM and motherboard RAM...there's only one type of RAM inside your PC, and those are the two 2GB sticks in their slots...

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[quote name='Redix' timestamp='1357573744' post='595438220']
I'd have thoroughly tested RAM today, but it turns out I have no empty CDs left which I can use
[/quote]

Errr waa?

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[quote name=']SK[' timestamp='1357575605' post='595438280']


Errr waa?
[/quote]

Oh yea, that sentence seems overly complicated :) What I meant is, I wanted to test the RAM, but couldn't do it. I would have done it if I had CDs.

I'm not able to write in English anymore, it seems :)

[quote name='Livin in a box' timestamp='1357574583' post='595438244']
Using your PC with the side panel off will only disrupt the normal airflow of the PC and make it not as cool as it could be; it's a very poor way of measuring temperature.

And I don't know what you mean by regular RAM and motherboard RAM...there's only one type of RAM inside your PC, and those are the two 2GB sticks in their slots...
[/quote]

By motherboard RAM I meant motehrboard cache and all the other things that YanksOnTop (above) mentioned. I guess cache and RAM are not synonims. And I don't think there is a lot of airflow to be disrupted. My case is not as big as it maybe should be, so there's not much room for the air to flow straight.

The fans on the GPU are faced downwards (I don't think it's good for airflow), the CPU fan is blowing to the side and the PSU fan is blowing out. I also have a spot on the back of the case where I can put another fan, but I don't have any spare fans.

On the front of the case, down bottom is a small hole for the cool air to go through, but then the air has to navigate between my hard drives and the far end of the GPU to reach anything useful, so I don't think that's good airflow. But it has worked for many years now.

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