WC Problem...

23rd May 2005, 19:42

My external WC-set:

Owkee, here's the deal... I recently finished my WC set, (external because of the size of my radiator and midi-case) and it runs!

Problem here is the effect isn't much better than air cooled... (about 37-40 celcius idle)

I got a CPU waterjacket by Frigus Engineering.

A 400 l/hr pump from the local aquarium shop. (no pic) in a custom made resevoir.

An internal car radiator of some ford. â‚¬ 20 and it was mine. Which is about 30x14X4 cm. (no pic again)

Last piece is a 9x9 cm fan bloqing through this car radiator.

The order is as following: Pomp -> CPU -> (soon chipset) -> Radiator -> Resevoir

ATM the WC is disconnected because my chipset block won't fit the hose... and filling/emptying is such a hasle

I really hope you can and want to help me. The only three things i think can be the problem are:[list=1][*]CPU block == wrong[*]400 l/hour won't cut it[*]Radiator should be before the waterjacket instead of after.[/list=1]

Again i really appreciate your help and attention!!

jort · 23rd May 2005, 21:11

is your pump inside your reservoir?

the heat generated by your pump now gets into the water.

400l/h pump is a little to weak i think, you might preffer a 700L or 1200L pump.

yes you can place your reservoir after the rad but it wont do mutch difference

23rd May 2005, 22:24

@jort
First of all, thank you!

Second, it's a pump that must be submerged... but i didn't know it could generate heat at all!!

I've read that 400 l/hour is the minimum and is even the recommended because higher would only get you a few degrees extra...

Besides... the resevoir is build for this pump, it fits excactly... when changing the pump, the pump won't be part of the external set...

Maybe another thing i might mention... my tubing is longer because it's external. All tubing together measures about 4m in length. Is this a problem?

=======

Sorry, just checked something that really might make a biiiigg difference...

As you can see on in picture, i got a cold cathode in my resevoir. While thinking about the hot pump theory, i felt the cathode. Lets just say, you can't keep it in your hands for a long time...

I really hope this is it, i will only be able to check it as soon as my waterchill chipset waterjacket fits on my hosing.

Any other comment is still welcome!!

23rd May 2005, 22:44

It doesn't realy matter how much water the pump moves, the head is much more important, the higher it is, the higher the pump can move the water.
2 400l/h pump can give you very different results, while one has a small head and is hardly able to get the water from the bottom to the cpu (ok, realy bad head), the other one, w/ a higher head, can pump the water even 4 times higher, so the water wil flow in the block will be higher with the high headed pump, altough the are rated at the same waterflow.
Ow, and pump with a higher head will also give a higher flow when there are a lot of obstructions in the loop (blocks, verry restrictive blocks, nozzles, ...)

23rd May 2005, 23:11

@HardFreak

Ok, nice angle!

My pump is a 4x4x4 pump. I assume that's a small pump by your standards. I once put the pump on without any tubes and it got about 30-40 cm from the top of the pump.

I hope i will find a higher pump that fits my resevoir...

jmke · 23rd May 2005, 23:13

or consider an in-line pump, this would remove some heat from the water-loop already, the smaller 12V pumps are pretty good http://www.madshrimps.be/?action=getarticle&articID=260

23rd May 2005, 23:30

@jmke

Mmmz, that indeed does look really good. But considering i got my pump for like â‚¬20-25. It's quite a bigger investment...

I must look into the prices of all them pumps, maybe even score a 2nd hand one

24th May 2005, 23:04

lil update.

I found a hose compatible with my Waterchill chipset waterjacket. The hose is more transparent and more robust than my current aquarium shop hoses.
So i will chance them all

Now the relevant info:
As you know my WC-set is dismanteled. I simply got rid off the hose on the pump, put it in the closed resevoir and let it run for the day. When i came back, the water indeed was indeed warm. That combined with the warm 'cold cathode' (For which i still need a nice outside of the resevoir solution) is a real hint for either getting a different pump or putting the rad after the pump (something i should have done in the first place).

I will post when changes are made. Hopefully better temps

25th May 2005, 12:37

is the reservoir behind the rad? because that would help a little bit ( but it still does not solve the problem )

My guess is also that your head on your pomp isn't strong enough.

25th May 2005, 12:52

I posted that i thought the pump reached 30-40 cm, besides, it was a long time ago and I'm not sure about it.

But the pump itself says 1m and that should be sufficiënt... shouldn't it?

I also got a 9cm fan on the rad... but it makes a hell of a lot noise. When turned on, the damn fan vibrates... it even makes this noise when i pick the wooden thing with the fan up.

I'm thinkin bout putting a variable resistance on the fan so the rpm is a bit lower. Hopefully that will help a bit.

23rd May 2005, 19:42	#1
KuriMasta Posts: n/a	WC Problem... My external WC-set: Owkee, here's the deal... I recently finished my WC set, (external because of the size of my radiator and midi-case) and it runs! Problem here is the effect isn't much better than air cooled... (about 37-40 celcius idle) I got a CPU waterjacket by Frigus Engineering. A 400 l/hr pump from the local aquarium shop. (no pic) in a custom made resevoir. An internal car radiator of some ford. â‚¬ 20 and it was mine. Which is about 30x14X4 cm. (no pic again) Last piece is a 9x9 cm fan bloqing through this car radiator. The order is as following: Pomp -> CPU -> (soon chipset) -> Radiator -> Resevoir ATM the WC is disconnected because my chipset block won't fit the hose... and filling/emptying is such a hasle I really hope you can and want to help me. The only three things i think can be the problem are:[list=1][]CPU block == wrong[]400 l/hour won't cut it[*]Radiator should be before the waterjacket instead of after.[/list=1] Again i really appreciate your help and attention!!

23rd May 2005, 21:11	#2
jort Member Join Date: Jun 2004 Location: mechelen(belgium) Posts: 2,037	is your pump inside your reservoir? the heat generated by your pump now gets into the water. 400l/h pump is a little to weak i think, you might preffer a 700L or 1200L pump. yes you can place your reservoir after the rad but it wont do mutch difference __________________ watercooling, chilled water,direct phase change, cascade, custom modding

23rd May 2005, 23:13	#6
jmke Madshrimp Join Date: May 2002 Location: 7090/Belgium Posts: 79,022	or consider an in-line pump, this would remove some heat from the water-loop already, the smaller 12V pumps are pretty good http://www.madshrimps.be/?action=getarticle&articID=260 __________________

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23rd May 2005, 22:24	#3
KuriMasta Posts: n/a	@jort First of all, thank you! Second, it's a pump that must be submerged... but i didn't know it could generate heat at all!! I've read that 400 l/hour is the minimum and is even the recommended because higher would only get you a few degrees extra... Besides... the resevoir is build for this pump, it fits excactly... when changing the pump, the pump won't be part of the external set... Maybe another thing i might mention... my tubing is longer because it's external. All tubing together measures about 4m in length. Is this a problem? ======= Sorry, just checked something that really might make a biiiigg difference... As you can see on in picture, i got a cold cathode in my resevoir. While thinking about the hot pump theory, i felt the cathode. Lets just say, you can't keep it in your hands for a long time... I really hope this is it, i will only be able to check it as soon as my waterchill chipset waterjacket fits on my hosing. Any other comment is still welcome!!

23rd May 2005, 22:44	#4
wutske Posts: n/a	It doesn't realy matter how much water the pump moves, the head is much more important, the higher it is, the higher the pump can move the water. 2 400l/h pump can give you very different results, while one has a small head and is hardly able to get the water from the bottom to the cpu (ok, realy bad head), the other one, w/ a higher head, can pump the water even 4 times higher, so the water wil flow in the block will be higher with the high headed pump, altough the are rated at the same waterflow. Ow, and pump with a higher head will also give a higher flow when there are a lot of obstructions in the loop (blocks, verry restrictive blocks, nozzles, ...)

23rd May 2005, 23:11	#5
KuriMasta Posts: n/a	@HardFreak Ok, nice angle! My pump is a 4x4x4 pump. I assume that's a small pump by your standards. I once put the pump on without any tubes and it got about 30-40 cm from the top of the pump. I hope i will find a higher pump that fits my resevoir...

23rd May 2005, 23:30	#7
KuriMasta Posts: n/a	@jmke Mmmz, that indeed does look really good. But considering i got my pump for like â‚¬20-25. It's quite a bigger investment... I must look into the prices of all them pumps, maybe even score a 2nd hand one

24th May 2005, 23:04	#8
KuriMasta Posts: n/a	lil update. I found a hose compatible with my Waterchill chipset waterjacket. The hose is more transparent and more robust than my current aquarium shop hoses. So i will chance them all Now the relevant info: As you know my WC-set is dismanteled. I simply got rid off the hose on the pump, put it in the closed resevoir and let it run for the day. When i came back, the water indeed was indeed warm. That combined with the warm 'cold cathode' (For which i still need a nice outside of the resevoir solution) is a real hint for either getting a different pump or putting the rad after the pump (something i should have done in the first place). I will post when changes are made. Hopefully better temps

25th May 2005, 12:37	#9
Da_BoKa Posts: n/a	is the reservoir behind the rad? because that would help a little bit ( but it still does not solve the problem ) My guess is also that your head on your pomp isn't strong enough.

25th May 2005, 12:52	#10
KuriMasta Posts: n/a	I posted that i thought the pump reached 30-40 cm, besides, it was a long time ago and I'm not sure about it. But the pump itself says 1m and that should be sufficiënt... shouldn't it? I also got a 9cm fan on the rad... but it makes a hell of a lot noise. When turned on, the damn fan vibrates... it even makes this noise when i pick the wooden thing with the fan up. I'm thinkin bout putting a variable resistance on the fan so the rpm is a bit lower. Hopefully that will help a bit.