Watercooling Tube Issues

[ragedev]

Hi,

I was contemplating on why I had such high idle temperatures (40C @ 1.2GHz) and I thought this could be a reason why:

 

Load temperatures at 1.355V (75C) are almost the same as load temperatures at 1.4V (78C) which I thought was strange (There was only a 3-5C difference)

 

Do you think that straightening the tubing will make a difference to the flow rate and in result, the overall temperatures? 

 

I've had it running like that for 2-3 weeks now and it was always a concern to me that it would pop at one end with water gushing out of it.

 

It came around when I tried to get the compression fitting on and it required a lot of force. I ended up using pliers and other sorts of tools to get all the fittings on which ended up taking around 3 hours and with me having very sore hands. I was expecting the fittings to slide on with ease.

[WunderWuffle]

Please fix the tubing. Kinked tubing can cause a major spike in temperatures.

[Freaky_spider]

thats a pretty (read huge) kink you got there

 

i would drain your loop and see how to resolve your problem.

[Cacao]

Oh God that's bad! Is that even a kink? It looks like you have a void in your loop or something... You definitely need to fix that though. Is there any valve on the res that you could open?

[Izaya Orihara]

Kinky tubes... I dislike the look and they restirct the flow/ cause temps to rise sky high by quite a bit. (Maybe you want to look in some better tubes like the primochill Advanced LRT?) 

[ragedev]

Please fix the tubing. Kinked tubing can cause a major spike in temperatures.

By how much will temperatures decrease? I will try and get it sorted ASAP but I will have to wait until I find a time when I'm not busy. I usually take the entire loop (CPU Block + Radiator + PumpRes) out through the front 5.25" bay drives so it does take some time to remove.

Kinky tubes... I dislike the look and they restirct the flow/ cause temps to rise sky high by quite a bit. (Maybe you want to look in some better tubes like the primochill Advanced LRT?)

I have to admit it was probably my fault because the entire tube twisted when i was screwing the fittings on, I did not realise that the tube wasn't being held in place. It should be fine once I straighten the tube again

[warmmilk]

am I the only one that thinks that looks partially melted?  

 

whats your tubing size?  do you know what your fluid temp gets up to?

[ragedev]

am I the only one that thinks that looks partially melted?  

 

whats your tubing size?  do you know what your fluid temp gets up to?

''7/16" ID, 5/8" OD PVC Tubing'' is what it says in the manual although I am not familiar with what it means. The tubing came as a part of the kit.

The CPU Block and Radiator use G1/4" Threads.

[warmmilk]

''7/16" ID, 5/8" OD PVC Tubing'' is what it says in the manual although I am not familiar with what it means. The tubing came as a part of the kit.

 

thats pretty thin wall tubing, so it kink's easier...  also being thinner, temps will affect it more.  the best way to fix it would be to step up to 1/4" wall thick tubing like 3/8" ID 5/8" OD (ID and OD stand for inside and outside diameter).  however to do this you'd also have to replace all your compression fittings and those add up pretty quick $$$ wise.  you can try replacing that piece of tubing with a new one of the same size and putting an anti-kink coil on it and see if that helps before you go blowing a bunch of money on new compression fittings 

 

anti-kink coil:

http://www.frozencpu.com/products/6625/tsl-31/PrimoChill_Anti-Kink_Coils_-_58_OD_Tubing_-_Clear.html 

 

 

btw, whats your setup?  what are you cooling? rad(s)? fans?  

[Ghost]

You may be damaging your pump with a restriction like that.

[ragedev]

thats pretty thin wall tubing, so it kink's easier...  also being thinner, temps will affect it more.  the best way to fix it would be to step up to 1/4" wall thick tubing like 3/8" ID 5/8" OD (ID and OD stand for inside and outside diameter).  however to do this you'd also have to replace all your compression fittings and those add up pretty quick $$$ wise.  you can try replacing that piece of tubing with a new one of the same size and putting an anti-kink coil on it and see if that helps before you go blowing a bunch of money on new compression fittings 

 

anti-kink coil:

http://www.frozencpu.com/products/6625/tsl-31/PrimoChill_Anti-Kink_Coils_-_58_OD_Tubing_-_Clear.html 

 

 

btw, whats your setup?  what are you cooling? rad(s)? fans?  

I am using a kit with a 240mm Radiator. More details can be found on their website http://www.xs-pc.com/watercooling-kits/raystorm-750-ex240-watercooling-kit

I have one AF120QE Fan and one stock 120mm fan that came with the watercooling kit on the outside of the case in pull. I know AF is crap for radiators but I had no other use for it and it was quieter than having two stock fans at 12V. I have ordered two SP120PEs and they should be arriving soon. 

 

Regarding the tubing, the kinking was not caused by the water temperature but because of the angle that it was inserted at, almost like getting a towel and twisting it which resulted in that issue. I did not notice this until I put the loop inside the case and I didn't have time to spare to resolve it so I ended up keeping it like that. I think I'll take it out again and redo the tubing this weekend.

[warmmilk]

I am using a kit with a 240mm Radiator. More details can be found on their website http://www.xs-pc.com/watercooling-kits/raystorm-750-ex240-watercooling-kit

I have one AF120QE Fan and one stock 120mm fan that came with the watercooling kit on the outside of the case in pull. I know AF is crap for radiators but I had no other use for it and it was quieter than having two stock fans at 12V. I have ordered two SP120PEs and they should be arriving soon. 

 

Regarding the tubing, the kinking was not caused by the water temperature but because of the angle that it was inserted at, almost like getting a towel and twisting it which resulted in that issue. I did not notice this until I put the loop inside the case and I didn't have time to spare to resolve it so I ended up keeping it like that. I think I'll take it out again and redo the tubing this weekend.

 

so you're cooling just the cpu?  you're fine temp wise then.  why not run both of the fans that came with the kit instead of 1 of those and 1 AF?

 

I guess I should have been more clear.  if at all, temp is having very very little affect (even if you did have to much heat for the rad space).  anti kink coil is still something to consider though

[ragedev]

so you're cooling just the cpu?  you're fine temp wise then.  why not run both of the fans that came with the kit instead of 1 of those and 1 AF?

 

I guess I should have been more clear.  if at all, temp is having very very little affect (even if you did have to much heat for the rad space).  anti kink coil is still something to consider though

Yes, just the CPU, I won't be adding WC to the GPU anytime soon. I chose to have the one AF fan as it is quieter, yet i suspect it will be a lot louder still even with undervolted fans compared to the old air cooler which was pretty much silent. If I can't get the tube round the 90 degree bend from radiator to PumpRes, I may consider getting anti-kink coils or even rigid right angle/45 degree adapters. 

 

Edit: I am on the verge of purchasing a 90 degree adapter fitting : http://www.scan.co.uk/products/ek-csq-adapter-90-g1-4-threads-nickel. Will this make it easier to fit the tube onto the fitting?

[warmmilk]

Yes, just the CPU, I won't be adding WC to the GPU anytime soon. I chose to have the one AF fan as it is quieter, yet i suspect it will be a lot louder still even with undervolted fans compared to the old air cooler which was pretty much silent. If I can't get the tube round the 90 degree bend from radiator to PumpRes, I may consider getting anti-kink coils or even rigid right angle/45 degree adapters. 

 

Edit: I am on the verge of purchasing a 90 degree adapter fitting : http://www.scan.co.uk/products/ek-csq-adapter-90-g1-4-threads-nickel. Will this make it easier to fit the tube onto the fitting?

 

I think a 45 degree would serve you better then a 90 would, actually I don't see how a 90 would help in that condition at all... you'll basically have to make the same bend just in a different direction

[ragedev]

I think a 45 degree would serve you better then a 90 would, actually I don't see how a 90 would help in that condition at all... you'll basically have to make the same bend just in a different direction

OK, I placed an order for the 45 degree fitting. I might delay re-doing the tubing until the order arrives so I don't have to refit twice.

[Prophet of Entropy]

that looks kike cheap hardware store pvc tubing. replace all of it.

[ragedev]

that looks kike cheap hardware store pvc tubing. replace all of it.

The tubing is fine, its the way I put it on that's the issue

[Leonard]

That isn't a kink, that is a warped tube. You are suppose to use room temperature water and not hot to boiling water in your loop......D HELL HAPPENED!

[ragedev]

That isn't a kink, that is a warped tube. You are suppose to use room temperature water and not hot to boiling water in your loop......D HELL HAPPENED!

It is not distorted due to water temperatures. Like I've said before, it happened when I put the tube in and screwed the compression fitting which turned the tube around so it faced the complete opposite direction and so when I came to installing it in the case, it twisted (think of it as a towel being twisted and you will have the right idea).

[Leonard]

It is not distorted due to water temperatures. Like I've said before, it happened when I put the tube in and screwed the compression fitting which turned the tube around so it faced the complete opposite direction and so when I came to installing it in the case, it twisted (think of it as a towel being twisted and you will have the right idea).

Ok, but that can't be good for water flow and temperatures. Change it out.

[ragedev]

Small Update; The temperatures haven't changed as much as I expected with a corrected tubing setup with no kinks, new premixed cooling fluid, and even with two SP120 Fans. The temperatures are only around 2-4C lower and it still idles at 40C..

[Prophet of Entropy]

is your pump still good?(has it started making noise?)  what is your CPU's power draw at idle? did it ever idle cool?

[ragedev]

is your pump still good?(has it started making noise?)  what is your CPU's power draw at idle? did it ever idle cool?

The pump seems to be fine. The CPU idle power draw is about 45-70W

[warmmilk]

have you tried reseating the cpu block?

[Prophet of Entropy]

40-70W is a lot for idle it should be under 20.  so you might have changed something when you over clocked it that's keeping it from powering down at idle, or something is loading your cpu.