Cooling

[TosaInu]

http://www.tomshardware.com/2006/01/..._out_the_fans/

[caravel]

I'm getting a 404 here?

[Husar]

Haha, I saw a TV report about that some months ago but I personally think it's a bit of a mess especially when upgrading(and when you want to sell your old hardware to someone else).

[TosaInu]

That may be a temporary not available Caravel, the URL works.

A few years ago there was a joking topic in some forum about watercooling: a guy said without laughing that he sealed his case and filled it to the brim with water. I think the board got an extra 10,000 hits every day, including upset people that this was very dangerous. Some saw the joke though and made it more absurd by saying he should better use petrol as that wasn't corrosive.

It's interesting to see this now. Also read the article about extreme oc and nitrogen cooling again. It's a good thing that Intel/AMD manage to make their CPU's smarter and thus more powerful without skyrocketing the powerconsumption and thus the impractical cooling requirements (not to mention the environment). This coolingproblem may become yet another motivation to split the CPU again. I guess it's easier to cool two 'smaller' seperate sockets/CPU than one. You could say that this is already achieved by the GPU(s).

[Husar]

Well, the GPUs do seem to get warmer and warmer and use more and more energy unlike CPUs where all that is being reduced lately.
I wonder whether one can keep the fans running inside that soup.
If you have a Pentium D, maybe you can supply everybody on a LAN with french fries...

[Vladimir]

Is this some kind of sick joke? Coating electrodes with something as flamable as cooking oil is never a good idea. Not to mention the bacteria that would turn it into their version of the Roman Empire.

[Beirut]

I've used cooking oil in my chainsaw as chain oil. When it hits the blade and heats up, make the whole place smell like french fries.

Then you wonder why you're hungry all day.

[TosaInu]

Well, the GPUs do seem to get warmer and warmer and use more and more energy unlike CPUs where all that is being reduced lately.
I wonder whether one can keep the fans running inside that soup.
If you have a Pentium D, maybe you can supply everybody on a LAN with french fries...

The initial Intel Core2Duo dropped from over 100 to 65 Watt (or is there a catch somewhere?). But the latest are already over 100 again. Indeed though, it's good that the performance grew without simply increasing powerinput. We would be at 250 Watt just for the CPU? How to cool that?

Imagine todays 125 Watt GPU to be part (if possible) of the CPU.

A Pentium D should do the trick

Is this some kind of sick joke? Coating electrodes with something as flamable as cooking oil is never a good idea. Not to mention the bacteria that would turn it into their version of the Roman Empire.

I doubt, possible though. It links to Tomshardware, not prank.com. It's about technically possible, not about practical. It will be run for a period to prove it's possible. Some hours, a few days or even weeks, but not months.

Cooking oil needs to be heated to way over 300 degrees Fahrenheit to boil. It will not burn quickly. That would mean it can't be used for what it is for: boil food. A gasflame initiating the burning is much hotter.

Watercooling is also prone to bacteria/algae grow (you have to add something to slow that).

I've used cooking oil in my chainsaw as chain oil. When it hits the blade and heats up, make the whole place smell like french fries.

Then you wonder why you're hungry all day.

In that case you have a little bit of oil on a large hot metal surface. The oild will heat quickly and evaporate. In the PC case you have a eight gallons of oil to cool a few hot parts. Even a 300 F CPU surface won't spark the oil to burn. The locally heated up oil around the CPU will quickly be replaced by cooler oil from the tank.

Page11 mentions the temperature to be around 100 Fahrenheit at maximum load. The oil temperature around the CPU will be higher, perhaps even 300directly at the surface (it's a bit unclear to me whether they still used the heatsink?).

It won't be my DIY project and I won't recommend anyone to try this at home, but I think it's quite possible in a 'lab'.

Talking about cooling, I saw a heatsink for a CPU weighing 960 grams (~2 lbs). Imagine that being fitted in your tower, breaking loose and having a $400gfx. http://www.xoxide.com/scythe-infinity-cpu-cooler.html

[sapi]

A little off topic, i remember reading about using ethanol and dry ice for cooling.

It was tested in an australian magazine some months back and it got the computer so cold it didnt' boot

[Husar]

The initial Intel Core2Duo dropped from over 100 to 65 Watt (or is there a catch somewhere?). But the latest are already over 100 again. Indeed though, it's good that the performance grew without simply increasing powerinput. We would be at 250 Watt just for the CPU? How to cool that?

The new the newest stepping of the Core 2 Duos uses even less energy than the initial stepping(and I read the TDP, 65W, is usually not reached, same for AMD CPUs). The one that uses more is the QuadCore because that consists of two DualCores linked via the FSB so each DualCore has a TDP of 65W and together they have 130W. A native QuadCore design could reduce that of course but Intel wants to stick to this for a while. MADs next QuadCore should be a native design though IIRC.

I doubt, possible though. It links to Tomshardware, not prank.com. It's about technically possible, not about practical. It will be run for a period to prove it's possible. Some hours, a few days or even weeks, but not months.

I saw a TV report long ago where a guy was using this on his Athlon XP 2000 or so. I think he changed the oil sometimes but he was running his computer like this all the time.

Talking about cooling, I saw a heatsink for a CPU weighing 960 grams (~2 lbs). Imagine that being fitted in your tower, breaking loose and having a $400gfx. http://www.xoxide.com/scythe-infinity-cpu-cooler.html

I had a Zalman weighing around 750 grams(CNPS7000-CU) it deformed the mainboard a bit but I don't think it could have fallen, it was fastened quite well onto the mainboard, keep in mind that there is usually even a pressure applied to keep it in close contact with the CPU, otherwise your CPU would burn before the cooler falls.

[TosaInu]

The new the newest stepping of the Core 2 Duos uses even less energy than the initial stepping(and I read the TDP, 65W, is usually not reached

The Conroe and Allendale E4300 and E6xxx?

The one that uses more is the QuadCore because that consists of two DualCores linked via the FSB so each DualCore has a TDP of 65W and together they have 130W. A native QuadCore design could reduce that of course but Intel wants to stick to this for a while. MADs next QuadCore should be a native design though IIRC.

Yes, those are Quadcores and Extreme versions.

I had a Zalman weighing around 750 grams(CNPS7000-CU) it deformed the mainboard a bit but I don't think it could have fallen, it was fastened quite well onto the mainboard, keep in mind that there is usually even a pressure applied to keep it in close contact with the CPU, otherwise your CPU would burn before the cooler falls.

Yes.


Too cold to boot, install a bootheater :)

[TosaInu]

Wiki info about the Pentium, interesting.

http://en.wikipedia.org/wiki/Pentium_4

However, it was cancelled a few months after the release of Prescott due to extremely high power consumption (a 2.8 GHz Tejas consumed 150 W of power, compared to around 80 W for a Northwood of the same speed, and 100 W for a comparably clocked Prescott) and development on the NetBurst architecture as a whole ceased, with the exception of the dual-core Pentium D/Extreme Edition and Cedar Mill.

Glad they cancelled that.

TDP

http://en.wikipedia.org/wiki/Thermal_Design_Power

The TDP is typically set not to be the most power the chip could ever draw (such as by a power virus), but rather the maximum power that it would draw when running real applications.

A power virus?

Hmm, a power virus can cause the CPU to generate more heat than it would ever be able to dissipate (not even when there's an overkill of cooling). Uh oh.

How many pv are there? Seems rare, can't find anything even.