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Zalman Reserator XT

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Paradigm Shifter 5th October 2007, 12:39 Quote
Cool - I was hoping to see a review of this on Bit-Tech at some point in the near future, as I was pondering this kit yesterday. I've only found two other reviews, both of which were singing the praises of the Res XT. Only problem is, when I see a review talk about something that highly, I get kinda suspicious about it not being impartial. Anyway, that's water under the bridge. I liked the review here precisely because you voiced your concerns. ;)

One thing I would like to see, though; as Zalman sell a waterblock for the 8800GTX, I would love to see how it copes with a Core 2 Quad (or that Presler EE) and an 8800. Would make my mind up one way or the other for getting the Zalman VF-1000 and RHS-88, or going slightly higher and thinking more about this Res XT... :)
Bindibadgi 5th October 2007, 12:55 Quote
Well, I love it, but I wouldn't pay £260-odd quid for it. But if I was inclined to spend that kind of money on an external wcing kit it would probably beat the Koolance on looks alone.
TomD22 5th October 2007, 13:08 Quote
I second P-S's comment - I'd like to hear how it copes with a 8800GTS and a quad-core, if you could find the time to add that to the loop...
Paradigm Shifter 5th October 2007, 13:35 Quote
Quote:
Originally Posted by Bindibadgi
Well, I love it, but I wouldn't pay £260-odd quid for it. But if I was inclined to spend that kind of money on an external wcing kit it would probably beat the Koolance on looks alone.
I'm just hunting down reviews of that Koolance now. Yeah, I don't really care for the way it looks either - and I think that top LED lighting on the res would drive me insane in short order. Maybe I'll wait a while and see if this one gets any cheaper. Still, I imagine that all-in-one kits like this don't really ever drop in price significantly.
Bindibadgi 5th October 2007, 13:48 Quote
Quote:
Originally Posted by TomD22
I second P-S's comment - I'd like to hear how it copes with a 8800GTS and a quad-core, if you could find the time to add that to the loop...

I don't have the 8800 block and the 90nm P4EE is the same thermal envelope as a quad core :)

The kits don't drop in price, and Scan do it for £250ish - check the price grabber link in the article. The thing is, you can't build an external kit like this for the same money and looks - I wish they just sold the case and electronics "raw" though.
Paradigm Shifter 5th October 2007, 14:06 Quote
Quote:
Originally Posted by Bindibadgi
I don't have the 8800 block and the 90nm P4EE is the same thermal envelope as a quad core :)

The kits don't drop in price, and Scan do it for £250ish - check the price grabber link in the article. The thing is, you can't build an external kit like this for the same money and looks - I wish they just sold the case and electronics "raw" though.

Yeah, I had a feeling you were going to say that. ;)

On the 8800 block front - I'm not bothered who the block is made by, I just want temps with the two heat-monsters in the loop from a site where I trust the results of tests. :)

...

I'm so indecisive when it comes to watercooling.:o Every time I think I'll pull the trigger, a friend that already has watercooling has a bad experience...:'(
samkiller42 5th October 2007, 14:59 Quote
This looks like an awesome looking case, and i love the dials and readouts on the front, so stylish.

When it comes to watercooling, i find its about getting it right the first time. I have been very fortunate when it comes to it, ive only had 1 leak, which was minor, with no other problems. But, with my leak i was very lucky that ATI X600 cards are built like tanks and can allow a lake of water to sit on it while the system is running.

Sam
adidas 5th October 2007, 23:17 Quote
I'm very suprised by the comment at the end of the article: "For as little as £20-£40, you can pick up a massive piece of aluminium and copper that's very low noise and performs to within a few degrees of water".

Anyone cares to elaborate? My understanding is that when OC'ing at high clocks it's either water or Peltier, since air will get you nowhere.
The_Beast 6th October 2007, 17:59 Quote
looks really good but it's way too much price wise
Bindibadgi 6th October 2007, 18:07 Quote
Quote:
Originally Posted by adidas
I'm very surprised by the comment at the end of the article: "For as little as £20-£40, you can pick up a massive piece of aluminium and copper that's very low noise and performs to within a few degrees of water".

Anyone cares to elaborate? My understanding is that when OC'ing at high clocks it's either water or Peltier, since air will get you nowhere.

With a watercooling kit like this, it's geared for having a single fan take the heat out the system making it low noise - not for performance. It will provide you with both to a better degree, but is it £200's worth of "better degree"? You can buy a Noctua or TT MaxOrb or Scythe, TT-120s for example - large coolers with a single 120mm fan.
Otto69 6th October 2007, 19:01 Quote
New member, longtime reader here from across the pond....

I'm currently working on a new box using an Antec P180B, and trying to make it quiet. I've been pondering water cooling, but it seems to me that outside the box solutions like this still require at least one low speed fan to exhaust misc heat.

That said I'm wondering if the guys who disassembled the XT box con comment on:

a) the ducting of the air flow. I.e. is it possible that the fan is pulling air from around the edges of the radiators to a significant degree?

b) options for more or different fans? Maybe 2 attached to the radiators sucking filtered air in from the rear of the box where the stock fan is currently?
Otto69 6th October 2007, 19:20 Quote
One other thing I just noticed in the pics:

The radiators being used are the less efficient tubes versions, not the automotive style of radiator. Do any manufacturers of water cooling components make automotive style radiators in this size, preferably of aluminum, unpainted?
ledbythereaper 6th October 2007, 19:43 Quote
Right, considering to cool an 8800GTS and a E6300 and get decent temps you need a 2x120 rad, I don't think this will cope well, tempted to get this and the zalman silent 8800 cooler though.
Otto69 6th October 2007, 21:52 Quote
Hmm.. why not build a proper one using aluminum (or wood, or plastic), with decent radiators and the gauges and pumps of choice?
Bindibadgi 7th October 2007, 00:04 Quote
Quote:
Originally Posted by Otto69
New member, longtime reader here from across the pond....

I'm currently working on a new box using an Antec P180B, and trying to make it quiet. I've been pondering water cooling, but it seems to me that outside the box solutions like this still require at least one low speed fan to exhaust misc heat.

That said I'm wondering if the guys who disassembled the XT box con comment on:

a) the ducting of the air flow. I.e. is it possible that the fan is pulling air from around the edges of the radiators to a significant degree?

b) options for more or different fans? Maybe 2 attached to the radiators sucking filtered air in from the rear of the box where the stock fan is currently?

The radiators are pretty solidly held against the sides but they aren't sealed in with a shroud. There's no where to put extra fans in it unless you mod a three way connector from the one single one used to power the 14cm jobbie. However if you're putting three fans in it you might as well just put three fans in your case for the same effect. :)
Otto69 7th October 2007, 05:06 Quote
I was thinking more of substituting 2 120mm fans for the one larger fan.

The design continues to enthuse me, but has some problems. First, there's no dust filters on the radiators or the fan. Second is the problem of sub optimal radiators. Finally is the annoying issue with any external solution like this to have to run a fan in the CPU case to exhaust mobo heat.

I can't help but wonder aloud about a purpose built computer case thatthe XT would rest on. A sort of wide, flat case with no internal fans, just ventilation. Just a pipedream so far though.
Jipa 9th October 2007, 18:17 Quote
Just a quick note: I came to check the dimensions of the unit, and I can't really belive what it ways in the review: "Size: 76mm x 436mm x 369mm" 176 or 276 maybe?
agentx250 11th April 2008, 15:34 Quote
i have one of these and i love it, it keeps my q6600 and my oc'ed 8800gts 320 cool. although i do have an aditional dual core rad inside my case between the cpu and the gpu. but still looks great and performs great.
Jeff_Cote 20th October 2009, 17:26 Quote
I bit the bullet about a year and a half ago and bought the Zalman Reserator XT, along with extra coolant for the many years of service I would expect from something so expensive. I put it into my HTPC because I wanted to minimize any ambient noise while watching movies. It worked like a dream for about a year....

The manual suggests changing the Zalman ZM-G200 coolant about once a year. Around that time, the fluid level meter was showing the coolant was running extremely low, and finally started alarming. I pulled the Zalman off my rig, flushed the remaining old coolant out, and refilled it with the proper mixture of water-to-coolant. Since then, it hasn't worked right. The coolant level meter still shows it's almost empty despite the fact I've filled it to the brim. The coolant itself seems to coagulate, which is causing the pump to struggle pushing coolant through the system. I had to finally turn off the "automatic flow control" and crank the manual flow to its maximum so the Reserator wouldn't turn itself off and begin alarming. (Since it's an HTPC, it's never turned off. That would be a heck of a thing to come home to a melted down rig because my water cooling system decided to shut off.) This past weekend, it quit pushing coolant altogether, forcing me to yank the whole thing out and replace it with noisy internal fans.

I contacted Zalman about the issue. Their suggestion: Purchase a third party pump and put it in-line with the Reserator to control coolant flow. Not quite the helpful, customer-oriented answer I was looking for.

So in short, I bought a beautiful looking, rather expensive, coolant-filled paperweight. I truly hate to say it, but I would suggest to folks they buy something a lot less expensive and more modular, so if one thing fails, it's easily replaced without junking the whole kit.

Good luck!
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