where to put a water temp sensor?

[skid9uk]

just ordered this http://www.thecoolingshop.com/produc...oducts_id/1991 as im getting high temps. Where would you put it?

1) after the rad
2) after the cpu block
im only cooling the cpu. For system specks see thread (has anyone lapped there D-tek fuzion abit further down the page.)

Thanks

[Boyu]

after the rad.

[XS_RoB]

I made my own and have one put right before and after the rad - so that I can see the kind of temps my Rad is Disipating!

I just used a T and drop a LCD Temp Sensor down just barely into the t where the water line goes straight through and then Silicone the heck out of it!

But I recommend doing two Temp Sensors - before and after the Radiator.

[Snyxxx]

I think it has been posted a few times that the temperature difference from inlet/outlet of radiator is at most 1-2°C. Most people try this at first, see this result, then go back to a single temperature probe or none due to the extra wiring hassles.

XS_RoB, What are your temp deltas?

[XS_RoB]

Too Funny your absolutely Right! They are only 1 to 1.5 difference.....
(shakes head in shame..... only added them 2 days ago.)

Never really did anything with them yet...... Maybe when I add my Graphics card loop I'll simply move it over.

None the less.......

[Snyxxx]

I did the same thing. Like a lot of things in this hobby, I try something just to see it for myself, then remove or alter and on to the next project.

[starlon]

I think it has been posted a few times that the temperature difference from inlet/outlet of radiator is at most 1-2°C. Most people try this at first, see this result, then go back to a single temperature probe or none due to the extra wiring hassles.

Good to know I won't bother with the second sensor.

[Snyxxx]

Good idea. Thanks.

[NaeKuh]

MArtin was the one who gave me the best suggestion,

Right before the block, because that's the temp. water I'm cooling with. So for my bench, it's between the rad and block, and works very well like that.

andyc

yeah but andy depending on what you have on the loop, the water temp wont rise more then 1-2C from inlet to outlet. Martin's little dualcore couldnt even put a dent in his radiator.

Now if your snyxx [PS you saved me a TON of hours on your GPU discovery ] and have a Quad and GTX FullCover on it, then yeah, your inlet to outlet will have a slightly larger delta...

but i dont think it really matters, if your considering a temp probe, it would mean your already went dual loops :P.
I personally would put it where its the most convenient.

[nonlnear]

I personally would put it where its the most convenient.

And that's often dangling in the reservoir if you've got one. Save the restriction of another fitting and an extra bit of tubing (even though it's not much).

[Martinm210]

Yeah, I like before the CPU simply because this really is what you are actually cooling with. Alot of people are starting to post test results in terms of water to core delta. I would think the best definition of "Water Temp" is the one that's cooling your CPU or block.

But water's specific heat is really high. It takes on the order of 350watts at an average 1.5GPM to raise the temperature just one degree!

Between my two probes before and after my CPU block, I can't measure anymore tha .1C or less. So it's likely error between the probes will be greater than any difference you are measure.

Most probes have an absolute accurace of 1C with a few as good as .5C.

In the end if your testing, it's more important that you simply test exactly the same, it doesn't really matter so much.

It's good to have one probe in the water. More probes is fun for about the first week, then a bit boring constantly reading the same difference...

[Xilikon]

Yeah, I like before the CPU simply because this really is what you are actually cooling with. Alot of people are starting to post test results in terms of water to core delta. I would think the best definition of "Water Temp" is the one that's cooling your CPU or block.

But water's specific heat is really high. It takes on the order of 350watts at an average 1.5GPM to raise the temperature just one degree!

Between my two probes before and after my CPU block, I can't measure anymore tha .1C or less. So it's likely error between the probes will be greater than any difference you are measure.

Most probes have an absolute accurace of 1C with a few as good as .5C.

In the end if your testing, it's more important that you simply test exactly the same, it doesn't really matter so much.

It's good to have one probe in the water. More probes is fun for about the first week, then a bit boring constantly reading the same difference...

I agree, just 1 temp probe is enough to make sure water stay cool. When your radiator get dusty, you may see a rise in water temp (with a possible alarm to dust it off).

[NaeKuh]

And that's often dangling in the reservoir if you've got one. Save the restriction of another fitting and an extra bit of tubing (even though it's not much).

agreed!

i have 2 in each of my res on my loops.

[eXa]

id say 2 probes are ideal. but not before and after rad, that wont give u any real benefit over 1 probe. But if u put 1 in the loop and 1 in front of the rad u can measure the delta between air/water. that way u can adjust ur fans to where they move just enough air through the rad without to much noise.

[skid9uk]

Cheers ill try and figure a way to put it in my res.