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Old August 1, 2009, 02:34 PM
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Default Koolance Water Blocks

From the mumblings I've heard around this board and a few others across the internet, Koolance really isn't the greatest company for quality water cooling components. I'm shopping around for a single-PCB GTX 295 water block, and the current selection seems a little lacking (NCIX is only carrying an ugly Danger Den block, and the Koolance pictured below).



I've heard horror stories about Koolance fittings, but are Koolance blocks in general really so bad?

EDIT: On a related note with regards to the GTX 295 block, this EK offering confuses the hell out of me. I can only see one threaded hole on the face of it
EK-FC295 GTX SLI (Single PCB Version) - Acetal-Nickel EK-FC295 GTX SLI (Single PCB Version) [EK-FC295 GTX Single PCB AN] - $198.99 : DazMode, Watercooling enthusiasts store

EDIT2: Further analysis makes the EK block less confusing but still... Mysterious
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Last edited by steers; August 1, 2009 at 02:41 PM. Reason: Added a thought
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Old August 1, 2009, 03:44 PM
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Heh, if you look at the hole in the EK block, you'll notice a faint discolouration - there's an acrylic plate in the middle. It makes more sense if you look at the guts, but the block incorporates a parallel design, where the fluid goes in one side of the block, splits up to hit both cores, then rejoins on the other side of the card. Obviously, this forces your entry and exit points to be on opposite sides of the waterblock, but definitely reduces restriction imposed by the block.

Not sure about the latest KL stuff - they've definitely, vastly, tremendously improved over their earlier stuff. Unfortunately, there have still been a few incidents involving bad Stainless Steel plating, and their earlier stuff gave them a serious case of bad karma, which they'll probably have to put up with for a while longer. But at this point, they're definitely a viable option, and they've been offering a few products that have been long overdue in the watercooling sport. I don't think they've reached the point where they can justify charging a premium for their stuff, though.
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Old August 2, 2009, 06:07 AM
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I think the bad karma that Koolance has had in the past is and should be put to rest, they have come a long way in the last couple of years. I can't speak for everyone else but I had 3x GTX280 blocks all of which worked flawlessly along with their compression fittings and delivered very reasonable results. Their pricing isn't really out of line either compared to the other big players in the WC'ing game. Overall they may not be the best but they (at least in my opinion) deserve serious consideration, their service and support is second to none, they have come a long way and are certainly heading in the right direction....IMO.
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Old August 2, 2009, 07:10 AM
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I have had two full coverage video blocks from Koolance recently (2900xt and 4870/4890). Both have been great blocks with the exception of mediocre voltage regulator cooling (temps are not much better than air cooling, maybe 10c better). The blocks are good quality and work well. The fittings needed must have short (depth) threads or they will block the waterflow. I ordered some directly from Koolance but I have heard that NCIX carries some other brand that may work as well. None of my blocks have had any aluminum in them that comes into contact with the fluid so I have nothing to worry about. I would recommend their blocks for sure.

I will mention on problem I have had. I recently upgraded from a 4870 to a 4890. I wanted to re-use the full coverage block I had and I was told all I needed was the new pads that now come standard with the block (they weren't included when I bought it). I ordered the pads from Koolance and when you included shipping, brokerage and such they came to $45!!!!!! When I got the pads they were too thin and I ended up using the same pads that I used on my 4870!!! So in the end I wasted $45 for nothing.
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Old August 2, 2009, 07:45 AM
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They still have some of the worst quality control, so why take a chance? DD and EK make better products.
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Old August 2, 2009, 08:11 AM
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I'm personally a bit disappointed in Koolance, but mostly with price/performance part of it.

P.S. EK block has one thread on one side and second on other side.

From bottom side, there is an inlet then splits to both sides, left and right, goes over both GPU's and gets together to the outlet.


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Last edited by Dazmode; August 2, 2009 at 08:18 AM.
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Old August 2, 2009, 08:33 AM
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I guess it just goes to show ya, different strokes for different fokes, I personally am disappointed with EK products, I've built 3 rigs in the last 2 weeks with EK's 4890, 285 and 295 blocks. Don't get me wrong, they are pretty good products but IMO for the price they seem to be pretty damn cheap with the small details. The lack of thermal pads, the somewhat cheezy install instructions and the 295 acrylic blocks that have spots for 2 LED's but they don't include the LED's?...cheap! To me, you can tell that EK's are probably manufacturered out of some barn in middle of no where, but hey, thats just my opinion which doesn't mean much in the grand scheme of things
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Old August 2, 2009, 09:18 AM
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Thanks for weighing in, guys

I think that I'll probably end up going with blocks from EK this time, but I'll be sure to keep my eye on Koolance's wares. After all, if a few men in a barn in Europe are able to produce top quality water blocks (a la Heatkiller), then by all means a large American company specializing in the area should be able to do the same... eventually, no?
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Old August 2, 2009, 09:23 AM
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Ek Waterblocks are Slovanian, actually.
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Old August 2, 2009, 09:32 AM
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I don't know where did you get your EK (may be second hand?), but they always include thermal pads with blocks. No LED that correct, thankfully for my taste. :) English is not perfect, but still better then our Slovenian. He-he, right?
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