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From: Stephen
Subject: Re: Either my computer's PSU has taken a dive, or SpeedFan is readingthesensorsincorrectly
Date: 3 Mar 2011 06:13:35
Message: <4d6f77df$1@news.povray.org>
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On 03/03/2011 12:00 AM, clipka wrote:
> Am 02.03.2011 11:26, schrieb Stephen:
>
>> Rendering on 6 cores keeps the temperature in the high eighties.
>
> That's virtual cores I guess?
>
>> BTW do you know if the "duty cycle" has been disabled in 3.7?
>
> Yup. There had been some discussion whether to re-implement it, but it
> was decided not to, because the only purposes why anyone would ever want
> to throttle POV-Ray were thought to be keeping the system responsive
> (which would be served better by setting the thread priority), and/or
> avoiding thermal problems in zero gravity environments (after all that's
> the very reason it was implemented in the first place). Looks like
> nobody anticipated the power hunger of SSLT then.
>
I used it a few years ago when the laptop I had then was overheating a lot.
> But let's see how the recent changes to SSLT affect its power hunger.
> I'd expect it to get back closer to normal rendering, as it now traces
> most of the rays against the full scene as well, not just the SSLT
> object itself.
Lets see indeed. (Any hint as to when?)
--
Regards
Stephen
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From: Mike Raiford
Subject: Re: Either my computer's PSU has taken a dive, or SpeedFan is readingthesensorsincorrectly
Date: 3 Mar 2011 08:28:48
Message: <4d6f9790$1@news.povray.org>
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On 3/1/2011 7:24 PM, Stephen wrote:
> On 26/02/2011 11:54 PM, clipka wrote:
>>> Any idea what the max working temperature is?
>>
>> Not really. I think back then I found some information indicating that
>> around 90 degrees Celsius is a "healthy" upper value, but I can't give a
>> guarantee for that information.
>
> I think I found out :-(
> Round about 94/5 degrees C my laptop shut down. I had been Poving with
> SSLT all day.
>
Wow! Mine has yet to kick off. In fact, with as much SSLT rendering as I
have been doing lately, the system has remained quite stable. I guess
the cooling on my PC is working.
According to the temp sensors on the die core 0 reached the boiling
point at some time. (!) I'm guessing I was at work, it was warm outside
I call inaccurate reading. No way it could be that hot and survive. Core
0 always seems to read rather hot.
CPU (As a whole, measured from the sensor under the socket) reads a max
of 88 and a min of 33. That seems reasonable. The heat sink must be
working, though, because the core temps drop from 90-40 within seconds
after a render has ended.
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From: Stephen
Subject: Re: Either my computer's PSU has taken a dive, or SpeedFan is readingthesensorsincorrectly
Date: 3 Mar 2011 09:14:56
Message: <4d6fa260@news.povray.org>
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On 03/03/2011 1:28 PM, Mike Raiford wrote:
> Wow! Mine has yet to kick off. In fact, with as much SSLT rendering as I
> have been doing lately, the system has remained quite stable. I guess
> the cooling on my PC is working.
>
Remember I'm using a laptop with no extra cooling.
> According to the temp sensors on the die core 0 reached the boiling
> point at some time. (!) I'm guessing I was at work, it was warm outside
>
> I call inaccurate reading. No way it could be that hot and survive. Core
> 0 always seems to read rather hot.
>
Yes I would be suspicious of a reading greater than 100.
> CPU (As a whole, measured from the sensor under the socket) reads a max
> of 88 and a min of 33. That seems reasonable. The heat sink must be
> working, though, because the core temps drop from 90-40 within seconds
> after a render has ended.
Cool down time seems good.
Indecently my dual core is running at about 48 degrees after a couple of
hours of SSLT. I'll just run my big laptop on 6 cores, just now.
--
Regards
Stephen
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