Best 360mm radiator?

I have an apology to make, to googalymoogaly. Seems we are both right and wrong. You sent the old grey cells working and i had to find out about flow rates and the best way to cool a system and in my search i came across this old forum link which i found very intresting reading and also helped enlighten me to the pros and cons of liquid cooled loops ( Hope it is ok to post this link and i do not break any forum rules but others my find it helpful as well ) http://www.overclockers.com/forums/archive/index.php/t-210844.html
 
GoogalyMoogaly said:
But that's because if you pump the same amount of water through a smaller tube it has to flow quicker to get the same volume through isn't it?

And yes when it comes out of the 2 lanes it speeds up, but in your loop the reduced flow is at the end so with your example of the 2 lanes merging back into 3 it suggests that only the bit after the merge is fast everything before (i.e. everything before that radiator and after the pump) is going slow, it would only be what's after the radiator and before the pump that's moving fast.

Either way your loop does seem to be working for you, which I'm pleased about. I'm just disappointed that after 2 tries mine is still extremely loud (I measured nearly 40-50db, using a free app on my iPhone) and pretty damn hot for water cooling. My GPUs idle at 35ºC and 38ºC it's my CPU that gets hot.

What was your VCore when overclocked?

Also you said you "core temp" went up to 32ºC, I presume you meant "CPU temp" as I believe core temps are pretty worthless on AMD chips? (My core temps are usually pretty low)
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My VCore is at the moment 1.475v and the clock is set at 3.6GHz. Yes the CPU temps only hit 32c after 30 mins on Prime.
 
max51 said:
I have an apology to make, to googalymoogaly. Seems we are both right and wrong. You sent the old grey cells working and i had to find out about flow rates and the best way to cool a system and in my search i came across this old forum link which i found very intresting reading and also helped enlighten me to the pros and cons of liquid cooled loops ( Hope it is ok to post this link and i do not break any forum rules but others my find it helpful as well ) http://www.overclockers.com/forums/archive/index.php/t-210844.html
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I don't think you need to apologise, we were both just getting a bit confused. Some nice info in that link although I've only read the main post.
 
Scougar said:
Which temp measurement are you using for your chip GoogalyMoogaly? I know you use the 'higher' one right?
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Yeah, using HWMonitor (from CPUID developers) I use the TMPIN1 reading.
I think the TMPINs vary from motherboard to motherboard but I've come to the conclusion that TMPIN0 is my System temp and TMPIN1 is the CPU temp. Not quite sure what TMPIN2 is.
I (briefly) installed Gigabyte's EasyTune6 software which displays the values for System and CPU and they match those readings.
 
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Love that graph so much, always surprised how well the Swiftech MCR320 does against the much thicker rads, its within a degree of all the high end fat low fpi rads at all fan speeds except the fastest. Its cheaper and thinner than nearly all the other rads but is hard to find over here :(

Got a 360 and 240 in one of my rigs.
 
Just for laughs I decided to run Prime95 for 30 minutes.
Currently my rad fans are Akasa Vipers and I'm controlling them via a fan controller.
During this they were running at about 1300rpm (~70%) (Anyone that has used Apaches at 100% or vipers at 70% or above know exactly how noisy they are!)

These are the temps I got:
fbxgjl.jpg

(FANIN0 is my pump)

I know 41ºC is well within safe limits for the CPU (especially if it's the 95W chip that was supposed to be included in the OcUK OC bundle), but I'm sure people can get similar temps using moderate air cooling. the overclock is currently running @ 3.5GHz with 1.4v VCore.

I'm not sure how much worse those temps would be if the fans were at say 1000rpm, but I imagine they'd be pretty high. Wondering if my Gentle Typhoons will improve on this any (must get around to fitting them).

Getting back on to the Radiator topic a bit, does anyone know how well the XSPC RS rads work with low rpm fans? Are they designed for higher rpm (or static pressure) fans or do they also work well (considering their thickness) with low rpm fans? How well do they scale?
 
Biffa said:
Rs rads are better with faster fans mate. As for the temps not got a clue about ands sox.
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So if I combine a RS240 and RX240 then I'll have to run the fans fast to get the most out of the RS240. If I'm running them fast I may as well run the RX240 ones fast too (plus they could then be on the same fan controller channel)?

I'm assuming all thin rads are designed for high rpm fans?
 
Would there be any advantage in using 38mm fans on a RX360 (or SR-1) radiator?
From what I understand 38mm gives better airflow than 25 but does the noise increase with the airflow?

Also, does anyone know if when using a RX360 (or SR-1) in the top of a HAF 932, is there room for push and pull fans? I think you'd be looking at around 105-110mm total height. Does the HAF 932 provide this much clearance above the motherboard?

Thanks.
 
I called thermochill directly (about 1 month back) and they had some stock left, i had to buy the PA because the fan hole spacings on my U2-UFO are not the 15mm industry standard.
 
I doubt you would see much of a performace increase using 38 mm fans, yes the push more air at higher pressure but rx and sr-1 rads excel at low rpm as they are low fpi so don't need high pressure. If you are going to start using 38 mm fans I would go for a higher fpi rad to take advantage of the fans.

Heres a pic of my old set up 932 with sr-1 in the roof: http://i1233.photobucket.com/albums/ff397/Greboth/PC Mods/DSC_0757.jpg Obviously I can't measure it now but looks like there is room for fans underneath if you wanted them, though could cause some problems with getting fittings onto the rad.
 
GoogalyMoogaly said:
Would there be any advantage in using 38mm fans on a RX360 (or SR-1) radiator?
From what I understand 38mm gives better airflow than 25 but does the noise increase with the airflow?

Also, does anyone know if when using a RX360 (or SR-1) in the top of a HAF 932, is there room for push and pull fans? I think you'd be looking at around 105-110mm total height. Does the HAF 932 provide this much clearance above the motherboard?

Thanks.
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Googla, aprox 120-125mm no more in the area between the io plate and the top of the case, acording to my research on cases of that specification recently.

As to 38mm fans, thing is the larger radiators are designed for slow speed fans, if you are going to slap high speed fans or run the fans at higher speeds you might as well go for a thinner radiator, then you will have more room :) I've tried 38mm fans in the past and ended up getting better 25mm fans, if you can move them away a bit with a 5-10mm shroud that can help a lot, but having two push/pull fans at slower speeds on the thicker rad will give you a better, quieter effect than 1 38mm fan.
 
Right, well I've now bought a second hand HAF932 and a second hand Black Ice SR-1 360 radiator. The 360 rad fits in the HAF932 lovely, I suspect I could get push pull fans in there (2 x 25mm fans + 55mm rad = 105mm). But I'm worried that moving from a XSPC RS240 and EK 240 (totalling about 480mm of radiator space) that I'll actually get worse temperatures.
So I've dug out my old EK 120mm rad but I'm struggling to find the best way of mounting both rads internally. Has anyone got a HAF932 with 360mm and 120mm rads installed?

The big issue I'm having is that if I mount the 360 on the top and the 120 on the back, the 120 obstructs access to the connectors on the 360. If I flip the 360 around then the connectors are too near the front fo the case to connect up (with any elegance) as I'm using a bay res with pump fitted.
The only way I could see that working (if you can picture this) is going:
res/pump -> cpu -> 360 rad (connectors at the front above res) -> gpu -> 120 rad -> res/pump.

I've thought about mounting it at the bottom, but then I have some issues with the PSU.

Anyone got any ideas?

Thanks.
 
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