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Water-cooling the AMD Radeon R9 290X

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Gareth Halfacree 11th December 2013, 14:58 Quote
Quote:
Originally Posted by Platinum
72 degrees under load? What card have you got? my reference design one hits 95 under load at stock clocks?
They all do - that's the target temperature. The graphs are, as the chart shows, delta-T - meaning the difference between sensor temperature and ambient, not an absolute temperature reading.
schmidtbag 11th December 2013, 15:58 Quote
Quote:
Originally Posted by Gareth Halfacree
Tip for the future: if your precious electronics get water on 'em, wash them in isopropyl alcohol. It forms an azeotrope with water, meaning you can easily get rid of the water along with any mineral residue (more a problem for tap water, rain and the like than distilled water-cooling fluid, but still) without harming anything. It's a much more guaranteed fix than just waiting for the water to evaporate and hoping there's no conductive residue or corrosion anywhere.

That's definitely a good point - it IS the residue in the water itself that's the problem. 100% pure water is actually an insulator, but, just water dripping down a motherboard could collect enough particles to become conductive enough to be a problem.

Where I happen to live, the tap water is pretty clean. Not perfect, but clean enough that you could drink it un-filtered every day and not get an illness because of it. If I lived in an area where a filter becomes necessary, I probably wouldn't wash my parts straight under the tap. It also depends on the part at hand. Modern Intel boards and modern GPUs have some REALLY dense pin arrangements and are pretty sensitive. I'm not sure I'd recommend washing those out even with filtered water.
Gareth Halfacree 11th December 2013, 16:01 Quote
Quote:
Originally Posted by schmidtbag
Where I happen to live, the tap water is pretty clean. Not perfect, but clean enough that you could drink it un-filtered every day and not get an illness because of it.
Wait... That's not normal in the US, but an exception? Jeez. I'm pleased to say that you can drink unfiltered tap water from anywhere in the UK just fine, and it had never occurred to me that such a thing was unusual in the first world.

To be fair, though, tap water in London taste horrid. Still won't do you any harm, but bleugh.
Corky42 11th December 2013, 16:07 Quote
And some people in the third world would think we had lost our marbles if we told them we wash our cars, clothes and our selves in drinking water.
Gareth Halfacree 11th December 2013, 16:10 Quote
Quote:
Originally Posted by Corky42
And some people in the third world would think we had lost our marbles if we told them we wash our cars, clothes and our selves in drinking water.
I'd love to see grey water systems in the UK - the use of rain water (or other clean-but-don't-drink-it water sources) for tasks where treated water would be a waste. Never mind washing the car: it's completely insane that we use potable water (which has been processed and treated at great fiscal and environmental expense) to flush our toilets. Whose bright idea was that?!

Woo - total thread drift achieved! (Might actually make a grey water thread in Serious - it's a good topic, but not for the discussion thread about water-cooling a GPU.)
schmidtbag 11th December 2013, 16:51 Quote
Quote:
Originally Posted by Gareth Halfacree
Wait... That's not normal in the US, but an exception? Jeez. I'm pleased to say that you can drink unfiltered tap water from anywhere in the UK just fine, and it had never occurred to me that such a thing was unusual in the first world.

To be fair, though, tap water in London taste horrid. Still won't do you any harm, but bleugh.

It varies pretty drastically from different cities and especially between states. Most cities around my area are pretty safe, but go to Boston... boil the water first, filter it, or get bottled. Boston water isn't poison but I personally don't trust it. As with almost everything in the country, certain areas can be almost entirely different, to the point that it is almost as though you're in a different country. Road systems and internet connections are good examples of this. The roads in the northeast are windy and full of potholes, the roads in the southeast are windy but in good condition, and the roads in the west are almost a perfect grid. MA (where I live) is known to have the worst road system in the country. As for internet, east cost has very moderate speeds (slow compared to Japan or UK), parts of California have GREAT speeds, and midwest you're either stuck with satelite or dialup. The list of differences goes on and on, and the differences are quite drastic depending on where you are. To me, the US, in a cultural sense, is more like 6 or 7 different countries.
Harlequin 11th December 2013, 17:01 Quote
collecting rain water in a water butt is illegal in several states in the USA - people have been sent to prison for doing it!
Corky42 11th December 2013, 19:16 Quote
It would be very puerile if someone made a joke about keeping your back to the wall when in prison or you may find other stuff in your butt wouldn't it :D
somidiot 11th December 2013, 21:24 Quote
Quote:
Originally Posted by Harlequin
collecting rain water in a water butt is illegal in several states in the USA - people have been sent to prison for doing it!

Without going into too much detail on this thread just look up "water rights western us" in google (or your favorite search engine). It's a (insert choice expletive here) mess.

Back on topic: I suppose I should be more careful with my suggestions since bit-tech is not a "how to be a pro frozen nitrogen" shop. It is fun to see things that I don't have the money to play with myself though. :-) Me and my curiosity. At least this article makes me think I could go water (or liquid) cooled one day and it'd be worth it. Thanks bit-tech!
Spreadie 12th December 2013, 13:41 Quote
At the risk of sounding like I'm batting for the green team, why was this watercooled card pitched against the 780 instead of the 780Ti?

The cost of the block alone puts it around the price the price of a standard 780ti, but surely you'd also have to add in the cost of other WC components? It seems the majority of people have jumped ship to AIO CPU coolers instead of full loops, so the majority would have to build a dedicated loop to achieve these results.

Seems like a missed opportunity to match it up with a 780Ti.
Harlequin 12th December 2013, 13:59 Quote
an AIO and mounting plate would be suitable for this as well
sandys 12th December 2013, 14:10 Quote
Quote:
Originally Posted by Spreadie
At the risk of sounding like I'm batting for the green team, why was this watercooled card pitched against the 780 instead of the 780Ti?

The cost of the block alone puts it around the price the price of a standard 780ti, but surely you'd also have to add in the cost of other WC components? It seems the majority of people have jumped ship to AIO CPU coolers instead of full loops, so the majority would have to build a dedicated loop to achieve these results.

Seems like a missed opportunity to match it up with a 780Ti.

it doesn't need water necessarily, just improving the stock botched job and living with 95 and noise is fine for extra performance, this can be done with £5s worth of thermal paste.

http://www.tomshardware.co.uk/radeon-r9-290x-thermal-paste-efficiency,review-32829-3.html

780s also have performance degradation due to heat just not as extreme, but you could equally recommend water for those for best performance.
rollo 12th December 2013, 14:13 Quote
AIO are improving but dedicated water cooling uses would never touch them. You would also achieve worse results than what's doable on dedicated hardware.
Spreadie 12th December 2013, 14:31 Quote
Quote:
Originally Posted by rollo
AIO are improving but dedicated water cooling uses would never touch them. You would also achieve worse results than what's doable on dedicated hardware.

Nah... You're implying snobbery - I water cooled my PCs for the better part of ten years and have moved to AIOs for convenience. Decent quality AIOs are viable alternatives for everyday use, as are HSFs.

Full loop liquid cooling is a choice, and only really a necessity if you're pushing the limits.
Old Nikon 29th June 2014, 03:24 Quote
Now have one of these 290x OC GPU's.
I was thinking of adding a closed loop system same as I have for the CPU on the new build.
So thanks for the heads up.
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