rad orientation for passive cooling

oneofmanyjoes

oneofmanyjoes

oneofmanyjoes

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30 Jun 2012
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86
i know this has been addressed, but my situation is a little different

opinions please...

do you think my large rad would be better on its side or upright

as in

rad_zps6bb8b090.jpg


not to scale but the 2 side 'reservoirs' are different sizes


this is my rad
IMG-20120709-00042.jpg


breadturbo put his the normal way like this

http://i73.photobucket.com/albums/i211/breadturbo/13122010218.jpg


while running at stock, or slightly clocked i hope it will run passive, not sure which will best aid this, i know putting it flat would but i dont have space for that, i have a few spare megaflow 200 mm fans that dont push much air throuh it as its high fpi but you can feel them, my 12" fan is only comeing out when it has to

if the rad is upright i will put them next to each other at the bottom, if its side on, (option 1 in the pic) then i guess i will have them one above the other on that side

my custom block idea stoped when i moved work and had no access to machines for a few months

loop is out of my rad, in to 2x 18w ddc both with xspc tops, in series, into ray storm, back into rad

i have all the bits, apart from a motherboard as scan sent me a faulty one

thats 3 items in 2 orders now..and im waiting on a replacement
 
I was alwase gona go in at the top and out the bottom

But rads like this are designed to have air moving over all of them equally

Question is virtical or horizonta, if its horizontal the warmer water will gather at the top of each res, if its virtical then it should stay at the top

But I worry that if the only place for hot and cold water to get past each other is in the radthat there wont be the room and the hot water that normally ends up in the top of each res could get pushed down
 
Not even gpu... Just cpu Lol, overkill or what

don't think you can get blocks for quadro cards

And I'm building it like an oversized H100, as in its going in and out the same hole so I don't need to break it to remove it so I can fill it invert it shake it and leak test it before it goes in

Just need to build a stand to hold it, hence, deciding which way round now

Virtical I think

And i have a desk fan

The fun will be in a feW weeks when I'm in the alps and could in theory run the rad out a window in the -20 air to see what kinda clock I could get lol.... But I probably won't do that
 
i will do.... infact it would have been done by now but...

http://forums.overclockers.co.uk/showthread.php?t=18467716


i did just perform a rudimentary test, i have my hose reducers and endplugs, just need to tap them, but thats not done so my rad is 'sealed' for now, so i filled it with tap water as hot as it would get it... and left it sitting there for 1 min

then pulled the plug and it all ****ed out the bottom

highly scientific i know, but after 1 min the rad was warm all over the water that came out all over my hand was a lot cooler, when i put it in just before hand it was so hot i couldnt put my hand in it

stupid i know as the metal started out could, but i was mostly making sure it had no leaks and i wanted to flush it out a few times
 
well, she is one one peice, although not filled in this picture, she is now full. not run the pumps yet as its bloody 4am and i wanna sleep

IMG-20121229-00146_zps7ba2e984.jpg


spot the error, copper block, thats a copper cored rad

then i went and put bloody ally reducer blocks in it
IMG-20121229-00147_zpsc0e22f56.jpg


oops. will this mix corrode the copper or just the ally, if its only the ally i dont mind as its about 8mm thick


ps i went with the theory of if in doubt..... more zip ties lol
 
well despite my computer wo's

filled my system and left it for 12 hours, just sitting

now its leak testing running both pumps

is 24 hours a good amount of time, i've never done this before
 
lol, its from a jaguar v12...

temps were 66,67,69,66 after 6 hours prime @ 4.5

its passive so quiet..... apart from my graphics card, which is not quiet, its not too bad though, unless you stress it then it gets anoying, but aside from grafting on some homebru choped up waterblock or big heatsink too it ill have to deal with it


happy though

and yeah distilled water and antifreeze, the trick is to not let it leak...... be alright lol

edit. it is a bit heavy though... you can just about see the metal frame , its all as one, bolted together so i can move it, rad is about 5kg 4L of water, 3ish kg of steel, some wood, and the computer
 
Last edited:
ubersonic said:
Not really, as far as the pump is concerned its taking water from a res pumping it through two blocks and back to the res, hardly a restrictive loop.

.
Click to expand...

my rad is very non-restrictive, when i was testing it from a hose on my tap i couldnt fill it as fast as it was emptying


im running 15% antifreeze, hope thats enough
 
well...

4 months later and its still running strong, its been sitting in a cupboard with no vents, no fans, run for days on end

i just got back from a ski season and i was the only one to take any films so its been in the living room and abused for months and all seems well

once im settled im gona try getting it to 5ghz
 
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