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Passive Watercooling Upgrade

C

cw64

n00b
Joined
Feb 2, 2010
Messages
42
Since december my zalman reserator v2 has done a nice job of cooling my i7@4.1GHz. Now the ambient temp is climbing and I'm relying on the rear fan on my tower more and more to keep cpu temp below 81 celcius under heavy load, by blowing cool air across the radiator. Speeding the fan up increases the noise, which defeats the object of a passive cooling setup. So I need to upgrade.
First option is to put a second reserator in the loop: pro's ease, con's price.
Second option is to just put another radiator in the loop. I could use some names of aluminium radiators to read up on as I'm having trouble finding any. Also I am concerned about whether the pump will handle another radiator, I could use feedback on whether it will or won't: pro's price, con's hassle, especially if I have to change the pump.
 
Throw a couple Scythe Gently Typhoons on there and youll probably be good to go. Rated at 16db, your not really gonna hear them.
 
vjcsmoke said:
OP said he wanted passive cooling.
If I were you and space wasn't an issue, I'd add a Mo-ra 2 to your loop. It has enough surface area to be an effective passively cooled radiator.

http://www.performance-pcs.com/catalog/index.php?main_page=product_info&products_id=25231

Since you're only cooling your cpu, water pressure/flow shouldn't be a big deal for you.
Click to expand...

CW64 said:
Now the ambient temp is climbing and I'm relying on the rear fan on my tower more and more to keep cpu temp below 81 celcius under heavy load, by blowing cool air across the radiator
Click to expand...

Seems to me its a half assed passive cooling then if he has a fan blowing air across the radiator presumably hot air from inside the case to an external mounted radiator. Also, if he's already got a fan on there, its not like we are adding any noise to the system which im assuming is his goal, a quite PC.
 
If you want to stay passive you could put another radiator in the loop somewhere? (fanless of course) or you could scrap the passive idea and get a large desk fan or something, put it on low and point it at the radiator.
 
USMCGrunt said:
Seems to me its a half assed passive cooling then if he has a fan blowing air across the radiator presumably hot air from inside the case to an external mounted radiator. Also, if he's already got a fan on there, its not like we are adding any noise to the system which im assuming is his goal, a quite PC.
Click to expand...

The case fans are slow and quiet. Barely audible in a silent room, and completely unoticeable against the computer audio. The temp of the exhasted air is far from hot, not even tepid. Switching them off is not an option, as air would then be able to enter the case without going through the air filter. Besides they cool the motherboard/chipsets, drives, and ram. Using an existing fan to increase cooling performance would therefore be rather ingenious, as opposed to half assed.
 
All I'm saying is that a passive setup is one which does not use active cooling ie fans. If your saying you want to keep your system passive then it's not one. There are fans out there like the one I suggested earlier that are capable of moving a good amount of air while staying very quiet. While i haven't spec'ed out your watercooling system I'd imagine though that getting a pair of fans on the radiator would be cheaper and more effective all around and keep from creating a vicious cycle of heat from computer rising ambient and ambient rising computer. Just trying to help that's all
 
USMCGrunt said:
All I'm saying is that a passive setup is one which does not use active cooling ie fans. If your saying you want to keep your system passive then it's not one. There are fans out there like the one I suggested earlier that are capable of moving a good amount of air while staying very quiet. While i haven't spec'ed out your watercooling system I'd imagine though that getting a pair of fans on the radiator would be cheaper and more effective all around and keep from creating a vicious cycle of heat from computer rising ambient and ambient rising computer. Just trying to help that's all
Click to expand...

No it really is passively cooled. If you want to get that picky then I move that no water cooled setup is passive, all of them using an active pump. The whole point is to eliminate/reduce the need for fans. BTW the ambient temp would actually be marginally lower with more radiators due to the increased volume of water holding more of the heat. Really there is no difference however, the amount of heat generated by a CPU is not related to what cools it. Unless it is possible to make the CPU a superconductor at very low temps.
 
Seriously spend $20 on a Gentle Typhoon it will be quieter then your other fan and move more air. You could always redo your loop and get the mo-ra and hope a breeze here or there cools everything down.
 
if you do plan on adding fans, the scythe GT ap-13 (~1100 rpm) are said to be nearly inaudible on their top speed (personally I wouldn't go the passive route after seeing the performance gains of even lower-rpm fans).
 
The alphacool passive radiators look pretty awesome (if somewhat expensive).

Does anyone know if they have a U.S. retailer, or would I have to ahve it shipped from Germany?
 
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