Nobody wrote:
> When I play a 1080P video on my plasma my computer shuts down after
> approximately 2 minutes. When in the bios health page I see that shutdown
> is selected for CPU at 70C and that when in the bios page the temperatures
> are:
>
> CPU 60C , case 35C
>
> Of course when my video is playing I cannot see these temperatures.
>
> ECS K1N SLI Extreme
> AMD64 +4000
> Nvidia 8800GT dual DVI
> Media Player Classic
> Pioneer PDP-LX508d plasma
>
> files are TS
>
> When I play the same file but output to lower resolution to my LCD computer
> monitor there is no shutdown.
>
> One point of which I am uncertain is whether a video card if overtemperature
> can shut a computer down?
>
> I have all fans running at max and I do not overclock.
>
> All help appreciated.
>
> regards,
>
> Beemer
>
OK, I have a program that doesn't use the video card. Prime95 will load
up the CPU and run it at 100%. (Select "Torture Test" when prompted.)
This will give you an opportunity to see how hot the CPU gets.
http://www.mersenne.org/gimps/p95v255a.zip
This program is used to measure temperature and control fans. Start this
running before Prime95, and see what your idle temperatures are like.
Then, run Prime95, and wait a couple minutes for the CPU to heat up.
That will give some idea how hot it would get while playing movies.
It should be able to read out the three temperature channels on your
SuperI/O chip. As well as a few other things, like maybe the hard drive
temperature (as reported by S.M.A.R.T).
http://www.almico.com/speedfan433.exe
The CPU has a signal called THERMTRIP, and that can be used to turn off
the computer. The power supply may have overcurrent or overtemperature,
and the power supply could also shut off if it detected an extreme
condition. The video card, AFAIK, doesn't have a way to turn off the
computer in its hardware. The driver might have the ability to monitor
temperature (maybe a program like GPUZ or Rivatuner could access that
temperature readout). You'll have to look around, and see what utilities
can read out the GPU temp. It is even possible that Speedfan can do that
now.
This is apparently a Rivatuner screen
http://www.ixbt.com/video2/images/nv40-5/6800-high.png
(
http://www.digit-life.com/articles2/gffx/nv40-5.html )
The three temperatures you want to measure, under as extreme conditions
as possible, are room temperature, computer case air temperature, and
the CPU temperature, all when the CPU is at 100% loading. Prime95 is
one way to get that kind of loading.
Once you're finished with Prime95, you can stop and exit from it, and
move on to the next test.
You'd want to measure GPU temperature, under some extreme condition for
the video card. I believe ATITool has a stability test, and you could use
that to load up a video card. You should be able to still see the other
utilities on the screen, while ATITool is running.
(ATITool and GPUZ are here.)
http://www.techpowerup.com/downloads/
This is ATITool at work. The display doesn't take the full screen.
ATITool works with ATI and Nvidia cards.
http://www.softpedia.com/screenshots/ATITool_1.gif
Paul