In two minds over rad, and pump :(

[Kamz]

Hi

After plucking up the courage i have decided to upgrade my watercooling set since i will get getting a new machine soon.

My curent set up was

120.2 thermal rad

Cather storm block from AUS

Maze 4 gpu

DD12v pump (noisy)

But am ahviung slight trouble picking my next set up, my old set up is being sold to a mate, and i havent got my cpu for my new set up, so havent choosen a ful watercooling kit yet.

The trouble i have is that my old case i will be keeping which has holes cut for a 120.2 rad, and i aiming for the Pa120.2 with maybe the AquaXtreme 50Z-DC12-T or the Swiftech MCP350 12 VDC Pump but im having trouble choosing a pump.

I would like good performance but alot less noise the DD12v killed me, i couldnt belive how noisy it was even with a fan controller, at lower speeds the thing had a terrible whine.

But also i have a spare lanli case which i boguht brand new and was considering using macci mod to consdier fitting a PA160 but not 100% sure, as i have a case with 120.2 fit in easily...

So like i said whats it to be PA 120.2 with one of the pumps, or go witht he lanli and PA160??

Also the reason why im chosing the swifttech pump (or denager den version) is cos of a nice mod i have seen that can be done to icnrease the pumps flow rate, and i heard it real silent, can anyone confirm or carry out this mod???

Kamz

 

[maverik-sg1]

Hi

After plucking up the courage i have decided to upgrade my watercooling set since i will get getting a new machine soon.

My curent set up was

120.2 thermal rad

Cather storm block from AUS

Maze 4 gpu

DD12v pump (noisy)

But am ahviung slight trouble picking my next set up, my old set up is being sold to a mate, and i havent got my cpu for my new set up, so havent choosen a ful watercooling kit yet.

The trouble i have is that my old case i will be keeping which has holes cut for a 120.2 rad, and i aiming for the Pa120.2 with maybe the AquaXtreme 50Z-DC12-T or the Swiftech MCP350 12 VDC Pump but im having trouble choosing a pump.

I would like good performance but alot less noise the DD12v killed me, i couldnt belive how noisy it was even with a fan controller, at lower speeds the thing had a terrible whine.

But also i have a spare lanli case which i boguht brand new and was considering using macci mod to consdier fitting a PA160 but not 100% sure, as i have a case with 120.2 fit in easily...

So like i said whats it to be PA 120.2 with one of the pumps, or go witht he lanli and PA160??

Also the reason why im chosing the swifttech pump (or denager den version) is cos of a nice mod i have seen that can be done to icnrease the pumps flow rate, and i heard it real silent, can anyone confirm or carry out this mod???

Kamz

I can tell ya that the latest edition rads from thermochill are the puppies privates so using the same fans you will see an improvement in cooling capacity (probs 800w or more).

I can also tell ya that the AQZ pump is brilliant - high flow, higher pressure than normal (which is great for any flow restrictions or longer pipe runs) and is ultra quiet. You wont need more flow than that can already produce purely coz if the water moved any quicker, it would not have time to cool in the rads properly.

 

[Minstadave]

I've got the Aquaextreme 50z, such a nice little pump, couldn't recommend it more

 

[GoLLuM4444]

if the water moved any quicker, it would not have time to cool in the rads properly.

That cannot make sense!

The faster the flow rate the faster the thermal transfer rate.

 

[maverik-sg1]

That cannot make sense!

The faster the flow rate the faster the thermal transfer rate.

Of course it can

If the water is not allowed to cool long enough in the chamber it won't have time to transfer all the heat to the exchanger and although cooler, will not be as cool as it would be if it moved at the optimum speed.

Mav

 

[Kamz]

Great thats the pump sorted, however im still unsure about the rad do i:

Keep exisitng and place PA120.2, or find my lan li and mod it to fit a PA.160 using macci guide.

PS one thing im not 100% sure and thats on macci guide is the fan on the rad blowing agisnt it and out of the front case, or pulling from the rad, which means the heat is being pulled into the case???

Link below for mod:

http://www.extremeprometeia.com/forum/showthread.php?t=2402

Kamz

 

[Alanore]

GoLLuM4444 is right, if you make two identical loops of pipe in one you have warm water not moving and the other you have water travelling round and round at 100mph, the 100mph would cool quicker. More water incontact with the cooling surface.

Although I see where you coming from mav. That if the water isnt in contact with rad for long it wont cool, but if its flowing fast it will be forced against the pipe more (increased pressure) so there will be more heat transfer per second.

 

[maverik-sg1]

Well I can see the physics in this but let me tell you where I am coming from:

My Exos2 has a dual 120mm rad built in with pumps and res - but I thought using an extra pump (AQZ050) would improve my cooling (more flow and pressure = better cooling) but in fact I lot about 3 degrees - so the conclusioon I drew from that was it as moving to fast the get as cool as it could.

Mav

 

[GoLLuM4444]

Well I suppose it makes sense that that particular bit of water wouldnt be cooled so much but then the same argument happens when it passes through the block - it's not heated so much - the point being more water is continually following it and getting cooled / heated.

 

[Minstadave]

Yeah the water not having time to cool argument doesn't work mathmatically or practically tbh, the more pressure and flow the better

 

[maverik-sg1]

Yeah the water not having time to cool argument doesn't work mathmatically or practically tbh, the more pressure and flow the better

The experience I had says otherwise - but I guess its really a question of balance.

 

[Minstadave]

You may well be right, but I can't see any logical explanation for it, maybe your block performs better at low flow due to less turbulence. High flow in a radiator is always going to be good though as you need the steepest temperature gradient between the radiator and air to maximise heat transfer, the only way to increase this is to up flow.

 

[maverik-sg1]

You may well be right, but I can't see any logical explanation for it, maybe your block performs better at low flow due to less turbulence. High flow in a radiator is always going to be good though as you need the steepest temperature gradient between the radiator and air to maximise heat transfer, the only way to increase this is to up flow.

But high air flow can have the same effect as high water pressure/flow, maybe 2x120mm fans is enough for my set-up (on lowest speed setting too)

Both theories carry merit:

Maybe at the top end of the cooling capacity it would be more useful (hi-flowing water) I am just cooling 2x7800GTX's (voltmodded) not a CPU too.

With my set-up, without the AQZ running I have fans on setting 1 (one being the lowest speed) and with the AQZ on I have to up it to 3 to get same temps - although there are 10 speed settings in all.

Perhaps with more heat load the reverse would occur?

 

[Master_G]

High flow = less time in the rad for one pass, but in any given time period the water will pass through the rad more times, = better cooling.

Tends to impact more with CPU blocks as they need high flow rates to get the heat away from the CPU.

G

 

[Kamz]

Great thats the pump sorted, however im still unsure about the rad do i:

Keep exisitng and place PA120.2, or find my lan li and mod it to fit a PA.160 using macci guide.

PS one thing im not 100% sure and thats on macci guide is the fan on the rad blowing agisnt it and out of the front case, or pulling from the rad, which means the heat is being pulled into the case???

Link below for mod:

http://www.extremeprometeia.com/forum/showthread.php?t=2402

Kamz

anyone ???

 

[chris_ah1]

Anyone here got experience with the D5 pump? I know that you went with the aquaxtreme one - but the D5 is a bit more powerful on paper - but is it better?

 

[stocky]

One of those new 120.2 would be better than a single PA right?

It's suppose to be better for a fan to pull through the rads, but either way you want the air coming in at the front of the case and out the back. So if you have the RAD in the front you will be blowing slightly warmer air into the case, but if you have it on the back you will be blowing warmer air through it. The idea is that you blow the coolest air possible through the RAD really.

If you have room you could mount a 2x120 on the front. But a single 120 like Marci has done is nice. I've done both, and a 2x120/ heatercore is a LOT more work than a single to fit.

 

[stocky]

Meh, if you Google the pumps there are some graphs somewhere showing the different pressure, head, flow rate etc... I think you'll find that the D5 has a higher flow rate and lower head, or the other way round. I don't think one beats the other right out on everything.