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Emergency diy cooler, please help with suggestions

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post #1 of 13 (permalink) Old 03-30-2020, 01:36 PM - Thread Starter
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Emergency diy cooler, please help with suggestions

Hi all, im in italy, as you all know things are pretty s***t here at the moment. Luckily i have work, however, in the middle of a large animation job (my only work on the horizon). My external watercooler (2x mora3 in parallel) has decided to crap out. First i noticed a leak from inside one rad. (corrosion from using a silver kill coil for 5+ years, according to manufacturer)

Ok, i thought, thats why i doubled every component, redundancy! So i clamped the tubes to the leaking rad. Then the other started drippping. F***k.

The manufacturer kindly offered a discount on replacements, which i ordered (the only rads that will fit the box i built) these are coming from germany, due to arrive thursday. Dropping my dual d5 pumps to mimimum reduced the leak to a few mm in the res every day.

However now, the shipping of the replacements seems stuck at starting point (hardly a surprise at the moment) and today the leak accelerated to losing a cm an hour from the res. I have to basically render 24/7 for the next 2 weeks, and my new 3990x cpu would not appreciate being starved of water in the middle of the night. I *cannot* afford to risk damage to that chip.

So i either shut doen my machine and lose my job, set an alarm for every few hours during night to top up water (and destroy the mdf case of the cooler with damp in the process). Or..

I come up with a temporary solution to replace the rads, that i can achieve from the local hardware store, which is thankfully, open. Ive not been so ive no idea what they have in stock.

Im currently thinking a (very) long hosepipe spread out on the floor might do it? A long piece of copper pipe would be best, but, if they have it, very expensive for a temp solution. Dunno if a pvc pipe would work if long enough. Given the cpu puts out 280w, and i also have dual titan x gpus in the loop ( i can avoid gpu rendering for now) it needs to have a fair capacity.

I also have an ancient (18 years old) black ice triple rad from my first watercooling build. However it was never very good, and definitely wouldnt handle the load i have now, probably even at idle. . Dont even know if its still healthy.. When i dug it out it amazingly still had some water sitting in it.

So, creative solutions with easy to get local parts so i can keep working till my new rads arrive? Appreciate any help i can get.

Many thanks and keep safe all.
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post #2 of 13 (permalink) Old 03-30-2020, 01:51 PM
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...now that's a novel problem you're having, even when framed within the times we live in...

Watercool / MoRa warranty stuff is usually great and replacements are the light at the end of the tunnel, subject to delivery in this weird age. But for immediate use needed now, you need as much surface cooling area as possible (copper coil from hardware store ??), and also as many fans as you can throw at it.

Also use as many older rads (ie BlackIce) as you have available...but if using OLD rads and such, first flush them out in the bath tub several times using regular water, then follow up with 2x distilled water flushes if available. Also, two D 5s should be up to the job of any reasonable custom-rigging until new rads arrive...

Best of luck, and stay safe...
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post #3 of 13 (permalink) Old 03-30-2020, 02:32 PM - Thread Starter
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I was also considering the idea of using a bathtub full of water with a (shorter) copper coil in it. I cant imagine even a 3990x would heat a bath up much.

However its a long (15+m across the kitchen) and really annoying route to the bath from machine, and a 7 year old running round all day with cabin fever (and needing baths) makes this idea less than ideal.

Do you think a 30m+ hosepipe would just be a waste of time? It would be a ton cheaper than copper and i could use one for the garden this summer anyway. I cant imagine it would shed much heat..
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post #4 of 13 (permalink) Old 03-30-2020, 03:18 PM
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Quote: Originally Posted by robinlawrie View Post
I was also considering the idea of using a bathtub full of water with a (shorter) copper coil in it. I cant imagine even a 3990x would heat a bath up much.

However its a long (15+m across the kitchen) and really annoying route to the bath from machine, and a 7 year old running round all day with cabin fever (and needing baths) makes this idea less than ideal.

Do you think a 30m+ hosepipe would just be a waste of time? It would be a ton cheaper than copper and i could use one for the garden this summer anyway. I cant imagine it would shed much heat..

...bathtub for bigger temp storage should be ok for quite a while (subject to 7 yr old running around...). But if bathtub heats up more than 2c above ambient with copper cooling coils etc, replace bathtub cooling water right away with fresh, cold water in bathtub

...just to let you know, I'm flying absolutely blind with this, even with quad D5 weirdo custom wc setups in my builds, and living on Canada's Pacific Coast
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post #5 of 13 (permalink) Old 03-30-2020, 03:22 PM
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that could work... n yep, you could just slowly refill the tub with "cold" water, endlessly really... until the water police come to haul you away.

how much down time can you afford? JBWeld (2 part metal epoxy)usually works to hold back the low pressure leaks our hobby can form over the years, if you can find em all, and give it 16-24 hours to cure.

tough luck on the kill coil. Should've NOT told them about that. Seems most companies are now using admittance of kill coils as a reason to deny warranty

(IDR the specifics now, but there was something about how silver can actually increase and promote galvanic corrosion after a period of time.)

the water left in your black ice isn't water. it's acid, and has probably caused multiple microscopic holes to form in the fins section over the years. It would most likely work like a sprinkler.

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post #6 of 13 (permalink) Old 03-30-2020, 04:16 PM
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just get a 5 gallon jug of water (or the equivalent) and swap water every few hours, i'd say one with ice and water will last overnight.
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post #7 of 13 (permalink) Old 03-30-2020, 04:28 PM
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get a bunch of hose and just drop the radiators into the tub.

combining some of these theories... building a copper coil is gonna be expensive and time consuming. Instead, just get a good length of tubing, and drop the rads & res in the tub.

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post #8 of 13 (permalink) Old 03-30-2020, 04:51 PM
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sink tap -> hose

hose -> water pump

water pump -> blocks

blocks -> back into sink

water temp shouldn't go much above whatever temperature your tap water is naturally at, no need to gunk up your radiator with the stuff that's in tap water so you can remove it out the loop.

not a great idea considering it's tap water but if your job depends on it then ¯\_(ツ)_/¯

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post #9 of 13 (permalink) Old 03-30-2020, 07:58 PM
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A triple radiator can easily handle just that CPU with minimal overclock. Rerun the CPU to the triple with a single d5 pump, disable the GPUs and run onboard video until you fix it.

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post #10 of 13 (permalink) Old 03-30-2020, 10:01 PM
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Set the rads on top of a large heavy duty plastic container. (tote, bin whatever you call it).
Remove any fans or anything electrical from the rad. Passive cooling only for safety.
Fill the bottom with water.
Set the hose to suck from the bottom of the container into your pump.
The container is now your reservoir. Anything dripping from your rad goes into the bin and is sucked back into the loop.



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