Unhappy Me: The "dead GPU" edition

[Manpowre]

Originally Posted by Uncwilly

The surface of the earth is colder than the core. Also the surface is colder than the stratosphere.

How warm is then our stratosphere ?

[chalsall]

Originally Posted by Uncwilly

The surface of the earth is colder than the core. Also the surface is colder than the stratosphere.

Thank you for that Uncwilly.

I'm going to assume you are familiar with the concept of resisters and capacitors, and other devices, in an electrical circuit.

[xilman]

Originally Posted by Uncwilly

The surface of the earth is colder than the core. Also the surface is colder than the stratosphere.

Sunlight at 6000K is coming down to Earth at 300K.

I suppose it's going up from the Sun so that's all right then.

[LaurV]

Originally Posted by Uncwilly

The surface of the earth is colder than the core. Also the surface is colder than the stratosphere.

Huh? I though the temperature goes down as you go up. With a small bump on the earth surface, which is heat by the sun, and with another small bump at the top stratosphere, where is heat by solar wind or so, but there, the temperature is never so high as at the surface, it is just around 0 Celsius.

[retina]

Originally Posted by xilman

Sunlight at 6000K is coming down to Earth at 300K.

I suppose it's going up from the Sun so that's all right then.

But going up from the Earth is the Sun. And while I admit that it does get colder initially as one goes up, later it gets rather hot once you reach the point at the Sun's core. And then later still it gets colder as you exit the Sun into open space again (assuming you survive the trip through the core (and for the moment ignoring the coronal temperature giving a slight blip on the temperature scale as you pass through)).

[TheMawn]

Heat does rise, but it's colder as you go up because the air is less dense and the sun "passes by" instead of heating it up significantly.

Lower pressure typically indicates cold as well. Less energy in the same amount of space.

[Manpowre]

I would like to change the subject for a short moment,

I offer you to find a solution for me not ending up with a dead GPU. were speaking of a 580 board.

One of the 2 boards I got is extremely hot. 88-90 degrees, when fan is at 91%. the other board is nicely at 68 degrees C at 70% fan speed.
The difference is how the card blows the air out. the first card blows air out inside cabinet too. while the second card blows it out of cabinet. I wonder what the vendor were thinking.

so, how can I clock down the card to take control of the heat issue ?

I tried EVGA precision, but it only allows me to clock it up, which is the wrong way..

I tried Nvidia system tools, but they dont let me do it either, atleast I cant find the way.

[kladner]

MSI Afterburner allows me to under clock, though there is a limit somewhere down there where it drops to its intermediate 405 MHz power saving speed. I recently had my Asus 580 at 600 MHz as an experiment in temps vs. throughput.

EDIT: This assumes Windows.

I would also suggest a spot cooling fan to feed more air to the intakes of the hot card, especially if the cards are close together.

[Manpowre]

Originally Posted by kladner

MSI Afterburner allows me to under clock, though there is a limit somewhere down there where it drops to its intermediate 405 MHz power saving speed. I recently had my Asus 580 at 600 MHz as an experiment in temps vs. throughput.

EDIT: This assumes Windows.

I would also suggest a spot cooling fan to feed more air to the intakes of the hot card, especially if the cards are close together.

Yeah, I run windows on all 4 nodes for the ease of it.
MSI afterburner did the trick.. 100mhz down, +10 hours is a good exchange for better heat profile.

thnx

[kladner]

Excellent! That's good to hear!

[Jayder]

You probably have, but did you swap the cards around? Trying them in different slots. Or would that not account for that great of a temperature?