Re: Video card problem

Actually, those appear to be the acceptable range of external conditions one
should operate the card in; e.g. the air surrounding the computer (that's
used to cool the card) should not be above 50 C :)

CK

On 10/22/06, Dick Groot <dick.groot@gmail.com> wrote:
>
> Hello Keith
>
> I believe that 70 is hot for that chip... specs below.
>
> Dick
>
> OUTPUT:
> +3.3V +5V +12V1 +12V2 +5V SB -12V
> Max Load 28.0A* 35A* 17A* 17A 2.0A 1.0A
> Min Load 0.5A 0.5A 0.4A 0.4A 0A 0A
> Load Reg. +- 3% +-3% +-3% +-3% +-5% +-5%
> Ripple V(p-p) 50MV 120MV 120MV 50MV 120MV
> * +5V, +3.3V, +12V1, 12v2 maximum output 410 Watts max.
> ENVIRONMENTAL:
> Operating Temperature 0 to 50degrees (i believe that is Celcius)
> Operating Altitude Sea Level 10,000ft.
> Non Operating Vibration Operating:10-300Hz, 0.5G, 3axes, 1hr. ea. axis
> MTFB 80,000hrs. @ 25degrees (i believe that is Celcius)
> Approvals UL, CUL, FCC Class B, CB, TUV
>
> On 10/22/06, Keith Brown <brownk@usask.ca> wrote:
> >
> >
> > Hi folks. This isn't really a linux problem but rather a hardware
> > problem ... at least, I think it is.
> >
> > My son bought the components for a gaming machine this past summer
> > and
> > we assembled it and he started using it. The problem is that when he
> > plays
> > graphics-intensive games the machine freezes ... not immediately but
> > usually after some seemingly random time. If he doesn't play games and
> > uses his machine for browsing etc. it behaves normally. During one of
> > his
> > gaming sessions when it froze I touched the graphics card and it was
> > HOT!!
> > So hot that I involuntarily pulled my hand away. The card is an ATI
> > Sapphire X800.
> >
> > We took the card back and had the vendor test it ... no problems. We
> > took the whole system back and had them test it ... no problems. Bring
> > it
> > home ... problems. We loaded a program called ATI Tools and measured the
> > graphics chip temperature at 70 degrees C.
> >
> > I took the card back yesterday and was told that this temperature is
> > normal for the card operating under load. I was also told that the heat
> > sink can be hotter than the chip. Now, I don't know what the normal
> > operating temperature for the graphics chip is but I do know that if the
> >
> > chip is emitting heat and the heat sink is getting rid of it, the
> > temperature of the heat sink cannot possibly be higher than the chip.
> > Otherwise the heat flow would be in the other direction. This is basic
> > physics of which I am more than a little aware.
> >
> > Do any of you think that there is, in fact, a problem on the graphics
> > card, given what I have said? I have no gaming experience and don't know
> > what to expect as far as performance of the higer end cards goes. I feel
> >
> > like we're getting the runaround from the 'technicians' ala the old
> > place
> > on Quebec Ave. (whose name escapes me at the moment) where Cbits is
> > (was?).
> >
> >
> > Dr. Keith Brown
> > Department of Chemistry/
> > Saskatchewan Structural Sciences Center
> > University of Saskatchewan
> > Saskatoon, Saskatchewan
> >
> > -----------------------------------------------------------------------
> > Life would be so much easier if we could just look at the source code.
> > -----------------------------------------------------------------------
> >
> > --
> > "Well, there's SPAM, egg, sausage, and SPAM. That's not got MUCH SPAM
> > in it."
> >
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> >
>
>
>
> --
> "Reality is merely an illusion, albeit a very persistent one"
> Albert Einstein
Received on Sun Oct 22 13:13:25 2006