Why isn't my watercooling cooling?

[stool]

BillA (Mar 26, 2001 08:09 a.m.):
.....

Stool, the kind of junk I find is "pump lubricant", which is soluble oil - nothing more.
What is the name of the anti-corrosive ?
thanks

be cool

BillA, I checked three different stores today, and couldn't find the stuff I used. The closest I could find was Prestone Super Antirust. I'll try some more places tomorrow.

 

[TT120]

I have found my new water cooling system to be real sensitive to the amount of pressure there is on the waterblock. Just a little too much pressure on one side or the other and it doesnt sit flat on the chip and the temps rise. A very slight adjustment on one wingnut or the other will drop the temps 5 degrees. You might try playing with that a bit and see what happens. I know it worked for me.

 

[Stan]

Thanks TT I'll play with it some more when my new pump and the other block arrive. I'll test both setups and see which one works better for me.

 

[Newbie_Doo]

I also have a submerged pump. My temps (admittedly on an overclocked c2-600) run about 2C over ambient. The thing I noticed about your setup that might be a contributing factor is the amount of coolant you have to work with. You are using a 4x4x4 reservoir. I use a 6x6x4 which has more than twice the capacity. If you have less capacity, you need to have a higher flowrate on your coolant and fan. I use an 80GPH Little Giant fountain pump (Rated at 2') and have a large radiator with 2 120mm Sunon fans drawing air through it. What I lack in flow, I make up for with volume and exchanger capacity.

Try a larger reservoir, or try a faster pump.

Just my $0.02

 

[Colin]

Correct me if I am wrong, but won’t a larger reservoir just delay the time it takes for the coolant temperature to reach equilibrium?

 

[Stan]

Colin,

I was thinking along the same lines as you with the larger reservoir. It would just take longer to heat more liquid. I don't have any tested proof though.

 

[Fink]

Colin (Mar 28, 2001 10:53 a.m.):
Correct me if I am wrong, but won?t a larger reservoir just delay the time it takes for the coolant temperature to reach equilibrium?

Basicly right - thermodynamics say that to heat 1ml H2O 1 deg C takes 4.18 Calories or 1 Joule (1 J = 4.18 Cal) . Thus 1000mL takes 1KJ or 4.18 KCal to heat 1C, 50000 mL takes 50 KJ (209 KCal). More water means you need more heat to raise the temperature up....

Equillibrium point is a different matter though and will depend on not only the volume of water, but also the heat transfer efficency both from the waterblock to water and water to radiator, heat loss (gain) to the atmosphere, heat gain due to pump inefficency, ambient temp ect ect ect.....