View Full Version : what is the lowest temp for watercooled pc?
rickyman
05-07-05, 10:52 PM
what is the lowest temp that watercooled user got?
please list the spec of it.
thank you
Senater_Cache
05-07-05, 11:11 PM
The Best ultra crazy mega performance Water system (which doesnt exist...theory) will get you to exactly ambient. It cant get lower than that.
felinusz
05-07-05, 11:23 PM
The Best ultra crazy mega performance Water system (which doesnt exist...theory) will get you to exactly ambient. Cant get lower than that.
So, with straight watercooling (no peltiers, chillers, and 100% water in the loop), the lowest theoretical waterblock temperature that one could achieve would be ~1 Degree Celcius, before the water froze up ;).
Since in real life we can't get our processor (or whatever is being cooled) right down to ambient, the best straight watercooled results you'll ever see are several (~5) degrees above ambient, ambient being 'room temperature'. This is the case, because we rely on air to cool the water - the water cannot get any colder than the room temperature air being used to cool it. :)
Senater_Cache
05-08-05, 01:50 AM
because we rely on air to cool the water - the water cannot get any colder than the room temperature air being used to cool it.
which is getting heated by the very water we are running in our loops ;) , and thus will have an altered (raised) temperatur which we in terms, are adopting as our variable ambient temp.
what is the lowest temp that watercooled user got?
please list the spec of it.
thank you
yea water cant go sub-ambient :eh?: then there is vapor phase :attn: awww memories :cool:
Bong water cooling. Can go sub-ambient in certain cases.
Ambient temp is the key..that's why my radiator is in the basement where it's always chilly, and the ambient temp at the rad is well below room temp at my desk. My prescott averaged about 15~18C while surfing in a 23C room. I don't know what the air temp is at the radiator, never got around to measuring that.
My setup is NOT normal. :D
Bongs can get you to wet-bulb temp, but technically that's a form of phase change too where the water is changed to vapor to release heat. I was able to get the water 8-10C below room temp in the winter when it's dry here.
Theoretically, you're all wrong :p
With only water cooling, you could get to below 0 temperatures. I doubt anyone has done it, but it's possible. Morre on that in a second. Anyways, you could get below ambient by having a constant source of cold water, ie tap water. If you had a constant flow of tap water running through your system, you'd get way below ambient.
Back to subzero temps. If you put extreme pressures on water, its freezing temperature will drop. That's why the bottom of the ocean isn't frozen. So, if you ran your WC setup with extreme pressures (you'd probably need some wicked tubing and amazingly strong water blocks) and put it through some liquid nitrogen to get it cold, you'd get some amazing temps. It's not conventional, but it's still technically watercooling because you're using water; it's just totally impractical.
So basically, unless you have loads of money to waste, you're stuck at ambient.
rickyman
05-08-05, 01:55 PM
do you guys /gals think is it worthly to buy a xtreme system for little bit overclock the cpu and video card?
crimedog
05-08-05, 02:14 PM
wow kayson... just wow
rickyman just do the research to see the pros/cons because you have to make your own decision.
{PMS}fishy
05-08-05, 02:17 PM
Theoretically, you're all wrong :p
With only water cooling, you could get to below 0 temperatures. I doubt anyone has done it, but it's possible. Morre on that in a second. Anyways, you could get below ambient by having a constant source of cold water, ie tap water. If you had a constant flow of tap water running through your system, you'd get way below ambient.
Back to subzero temps. If you put extreme pressures on water, its freezing temperature will drop. That's why the bottom of the ocean isn't frozen. So, if you ran your WC setup with extreme pressures (you'd probably need some wicked tubing and amazingly strong water blocks) and put it through some liquid nitrogen to get it cold, you'd get some amazing temps. It's not conventional, but it's still technically watercooling because you're using water; it's just totally impractical.
So basically, unless you have loads of money to waste, you're stuck at ambient.
A. The Ocean isn't frozen because there are billions of gallons of water. Temps don't even reach the freezing point in most parts.
B. Ever hear of a water chiller?
C. If you have LN2, why not just use that to cool the CPU/GPU?
{PMS}fishy
05-08-05, 02:19 PM
what is the lowest temp that watercooled user got?
please list the spec of it.
thank you
You looking for lowest water temps? CPU/GPU temps? Please specify.
{PMS}fishy
05-08-05, 02:21 PM
So, with straight watercooling (no peltiers, chillers, and 100% water in the loop), the lowest theoretical waterblock temperature that one could achieve would be ~1 Degree Celcius, before the water froze up ;).
You can get bellow the freezing point, provided the water is moving at a fast enough rate.
i dont know why this was overlooked and correct me if im wrong but most of us have some amount of coolant in our loop, meaning the fluid does not freeze at 0 degrees celcius.. make 2 3/4" holes in your freezer and stick your rad in there with about 20% coolant in your loop, you will be subzero :D hows that for cheap and effective cooling?
my 2 1/2 cents^^
--nstabl
rickyman
05-08-05, 02:25 PM
i am talking cpu and gpu temp.
ls7corvete
05-09-05, 09:11 PM
do you guys /gals think is it worthly to buy a xtreme system for little bit overclock the cpu and video card?
Not unless you want silence too ;)
Me, Ill take the quiet.
i dont know why this was overlooked and correct me if im wrong but most of us have some amount of coolant in our loop, meaning the fluid does not freeze at 0 degrees celcius.. make 2 3/4" holes in your freezer and stick your rad in there with about 20% coolant in your loop, you will be subzero :D hows that for cheap and effective cooling?
my 2 1/2 cents^^
--nstabl
That will probably work for about 15 minutes, and then the heat put out by the Radiator will more than likely heat your freezer up faster than it can cool. I remember reading some articles about peopel using mini fridges, and freezers and not getting anywhere near the results they were hoping for because the refrigeration systems weren't powerful enough. Although, if you had a freezer with enough oomph to it, it shoudl work. Although, if you are going to spend the money on a freezer just for that, might as well just get a phase change unit.
do you guys /gals think is it worthly to buy a xtreme system for little bit overclock the cpu and video card?
Yes. To me, the watercooling is the hobby...I don't even overclock, and it'd probably handle 3 computers including gpu's.
Maybe I'll be bumping up that new A64 mobile I'm running now, but maybe not.
I like the quiet as well. My whole system is about as quiet as a single 120 fan though my radiator in the basement is fairly loud, noone goes down there. That's one thing that aircooling can't do as easily, move the noise to an unused part of the basement.
MailOrderSausag
05-12-05, 08:44 AM
If you put extreme pressures on water, its freezing temperature will drop. That's why the bottom of the ocean isn't frozen
wrong. it's because ocean water is a solution. the freezing point of water drops as the molarity of the solution rises. boiling point also rises. anti-freeze is sort-of a water-glycol solution. it doesn't freeze until -40 (or around there). the weaker the solution, the closer it's freezing point is to 0C.
running with the idea that you cannot get lower than ambient, i was just thinking of sticking my heater core in the fridge. lol
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