Mailing List AE-List@media-motion.tv ? Message #42403
From: Jeff H <jeff.aelist@gmail.com>
Subject: Re: [AE] Mac kernel panics (continued)
Date: Tue, 6 Mar 2012 15:42:35 -0600
To: After Effects Mail List <AE-List@media-motion.tv>
Oh, sorry about that, it's 150º F.  Granted, this is on a new mac pro (less than 8 months old), and they may be designed to run at these temps for a long time but it was surprising just how much the internal temps would drop by a simple change of 500-800 rpm in the fans.  I don't have it crammed full of video cards or any I/O cards either so these temps are probably low compared to a full machine.  


Jeff


On Mar 6, 2012, at 12:09 PM, Teddy Gage wrote:

Holy crap, 150 degrees? I hope that's fahrenheit, otherwise you could cook a roast chicken in there. If that's in celsius I think your motherboard would melt. not sure what thermal max is on the chips in your mac pro but I'd imagine it should be kept well under 65c at full load for best performance and cpu life. Dust maintenance and airflow are really important, especially for a mac pro. I've worked at a lot of studios where they've never been opened up and cleaned for years...

On Tue, Mar 6, 2012 at 12:35 PM, Jeff H <jeff.aelist@gmail.com> wrote:
For monitoring the inside temps, you could install a little app called SMC Fan Control, or iStat Menus.  Both apps will also let you control the fan speed and monitor just about anything that has a temperature sensor inside the mac.

I noticed in my office that when rendering, especially 3D, the inside temps on the CPU's (Mac Pro 12 core) would get well into the 150's.  After turning up the fan speed just a tad, it brought it down about 30 degrees.  I'm not saying that the heat is the only reason for the KP's but I'd definitely want to know how hot the machine was getting, especially if the AC wasn't running.  Maybe you could kick the fans up at night to offset the warmer room?


Jeff







On Mar 5, 2012, at 4:47 PM, Chris Zwar wrote:

> Just picking up an older thread...
>
> Basically I'm working in a studio that has a load of identically specc'd Macs, presumably all purchased at the same time.  They all have nVidia Quadro FX cards in them and they all kernel panic regularly.
>
> Software / OS and Cuda drivers are up to date.  The problem seems to lie with the nVidia cards.  The only noticable thing is that they very rarely panic during the day, but mostly overnight when rendering on the farm.  This suggests it may be a heat issue, as the air conditioning goes off at 6pm and it's pretty warm in the office by 9am.  However the problem also seems to lie with GPU enabled software, including optical flares and sapphire (and even the screen saver) so it might not be heat after all.  As noted in my original post (way down below) simply applying the optical flares effect to a solid can prompt a kernel panic.
>
> The fact the problem affects so many Macs (about 10) suggests it isn't an individual case of faulty ram or even a dodgy graphics card.  Software updates haven't helped.
>
> Any other suggestions?
>
>
> -Chris
>
>
> Thanks for both your help.
>
> I've downloaded the latest CUDA driver (which I didn't have) and am looking forward to seeing if it makes a difference.
>
> I do always uncheck the GPU option for optical flares (and any other plugin that gives the option) however there's always the crossed fingers and silent prayer the first time that OF is applied to a layer and then seeing how quickly you can tick the box! It's annoying that it's such a gorgeous and popular effect, it's not uncommon for it to have been applied hundreds of times in a single large project, and if the project is causing kernel panics then then you have to go through and find the solitary instance that still has the GPU option enabled... (the PT effect search script is pure gold...)
>
> Judging from the number of machines effected it does seem like an issue with nVidia drivers somewhere...
>
>
> -Chris
>
> -----Original Message-----
> From: Jim Curtis [mailto:jpcurtis@me.com]
> Sent: Thursday, December 1, 2011 03:11 PM
> To: 'After Effects Mail List'
> Subject: Re: [AE] Mac Kernel panics
>
> I swear by Disk Warrior, which I run immediately after every Kernel Panic. It seems to vanquish them for a long while. Then for good measure, I run Applejack AUTO before commencing work again.
>
> I've only had about four KPs on my MacPro3,1 since buying it in 2008. They seem to have been more related to a RAID controller than GPU, but I only say that because the KPs mostly have occurred within a few days of either installing new PCI cards or drivers.
>
> BTW, Optical Flares (latest rev) will crash AE 100% of the time with my newish Quadro 4000 when the "use GPU" box is checked. It works fine as long as that box is unchecked. Perhaps you could try unchecking the box to see if that helps things.
>
>
> On Nov 30, 2011, at 6:25 PM, Chris Zwar wrote:
>
>> I'm working on a Mac Pro with an nVidia 4500 Quadro FX card. I probably get about 1 kernel panic a day, which seems to be caused by open GL or GPU accelleration. The crash reports all point to After Effects as the cause of the panic, but it's only GPU plugins that cause a panic. There's a bunch of macs here with similar specs and they all seem to suffer from the same problem- if it was just mine I'd suspect faulty hardware. It's not uncommon to arrive in the morning and find half the machines on the render farm have kernel panicked.
>>
>> I originally thought it was just the 'optical flares' plugin (we have the latest version), but it seems that any plugin that utilises the graphics card has a chance of bringing the machine down, possibly including sapphire.
>>
>> I have open GL turned off in AE, have all the latest software updates, and I avoid open GL / GPU acceleration where I can. But are there any other suggestions to fix this?
>>
>> -Chris
>>
>>
>>
>> +---End of message---+
>> To unsubscribe send any message to <ae-list-off@media-motion.tv>
>
>
> +---End of message---+
> To unsubscribe send any message to <ae-list-off@media-motion.tv>
>
>
>
>
> +---End of message---+
> To unsubscribe send any message to <ae-list-off@media-motion.tv>


+---End of message---+
To unsubscribe send any message to <ae-list-off@media-motion.tv>



--
Animator & Editor
www.teddygage.com
Brooklyn


 
Subscribe (FEED) Subscribe (DIGEST) Subscribe (INDEX) Unsubscribe Mail to ListMaster