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General Liquid/Water Cooling Discussion For discussion about Full Cooling System kits, or general cooling topics. Keep specific cooling items like pumps, radiators, etc... in their specific forums. |
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09-14-2004, 12:24 AM | #1 |
Cooling Neophyte
Join Date: Aug 2004
Location: bellevegas, il, usa... center of the universe.
Posts: 44
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What happend to the NexXxos XP review?
Any idea how long till it will be reviewed here? I'm curious to see how it does here after reading this review.
Last edited by bellevegasj; 11-14-2004 at 04:01 PM. |
09-14-2004, 12:36 AM | #2 |
Thermophile
Join Date: Sep 2002
Location: Melbourne, Australia
Posts: 2,538
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I have the blocks packed and ready to go, however Phaestus has been busy and unable to work on them anyway, thus in order to save on postage for other stuff I also have to send his way I've held onto them for a bit and I'll be doing a bulk shipment of the lot next week.
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09-14-2004, 02:14 AM | #3 |
Cooling Neophyte
Join Date: Aug 2004
Location: bellevegas, il, usa... center of the universe.
Posts: 44
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Thanks Cath.
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09-14-2004, 02:29 AM | #4 |
Cooling Savant
Join Date: May 2004
Location: Kingston, NY
Posts: 269
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I'm eagerly anticipating this review as well, though I'm looking forward to the Storm/G4 block most of all.
Cathar, will the Storm block be reviewed before or after you start selling them? |
09-14-2004, 02:42 AM | #5 |
Cooling Neophyte
Join Date: Aug 2004
Location: bellevegas, il, usa... center of the universe.
Posts: 44
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Yeah, I'm definately going to get a Storm block... I'll be waiting for the G5 to come out myself. Can't wait...
Glad to have Cath around =) |
10-03-2004, 08:33 AM | #6 |
Cooling Neophyte
Join Date: Sep 2004
Location: Andover, MA, USA
Posts: 14
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When will the Nexxos XP review be released? I am really interested in the other type of watercooling.
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10-03-2004, 08:35 AM | #7 | |
Thermophile
Join Date: Sep 2002
Location: Melbourne, Australia
Posts: 2,538
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Quote:
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10-03-2004, 11:52 AM | #8 |
Big PlayerMaking Big Money
Join Date: Aug 2001
Location: irc.lostgeek.com #procooling.com
Posts: 4,782
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They haven't gotten here yet. Today I plan to break down the old test bench, replace the dead motherboard, rerun 3 wbs again to make sure temperature numbers are within specs, and hopefully have it ready for Nexxos testing whenever the wbs arrive (next week?). I had planned on running the Storm first, but perhaps I will test the AlphaCool blocks first to give time for the G5 that Cathar is sending to make its way to me.
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10-03-2004, 02:12 PM | #9 |
Cooling Neophyte
Join Date: Aug 2004
Location: bellevegas, il, usa... center of the universe.
Posts: 44
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pH, I'm curious, I know that you'll explain it in the review but I'm impatient. Will you be testing the Storm and Nexxxos at high and low flow rates as well as with large(1/2 inch) and small(3/8) tubing?
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10-03-2004, 02:46 PM | #10 |
Big PlayerMaking Big Money
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Location: irc.lostgeek.com #procooling.com
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I'll test these blocks precisely the way I've tested all other wbs. That means that yes I will test from 0.25GPM (~1LPM) to whatever max flow rate may be for the wb. I don't test using different tubing size because the effect of tubing will be to lower flow rates. I use whatever adapters are needed to plumb the wbs into my test loop; the rest of the loop is 1/2"id.
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10-03-2004, 03:01 PM | #11 | |
Cooling Neophyte
Join Date: Aug 2004
Location: bellevegas, il, usa... center of the universe.
Posts: 44
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11-12-2004, 11:33 AM | #12 |
Big PlayerMaking Big Money
Join Date: Aug 2001
Location: irc.lostgeek.com #procooling.com
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http://phaestus.procooling.com/temp/...ool-prelim.jpg
Review coming as soon as I can scrounge up some background info on the block to fill out the introduction. |
11-12-2004, 11:50 AM | #13 |
Cooling Savant
Join Date: Jul 2003
Location: Michigan, USA
Posts: 456
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wow.
I know it says prelim but are those accurate #s or just the first round of testing?
__________________
Thou art God. |
11-12-2004, 12:32 PM | #14 |
Big PlayerMaking Big Money
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yes very close to correct. Never expect a block I test to look much worse in the final than in the prelim numbers; if performance gets worse then I keep on remounting and fiddling til I get the mount optimal repeatedly.
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11-12-2004, 12:38 PM | #15 |
Thermophile
Join Date: Oct 2002
Location: U.S.A = Michigan
Posts: 1,243
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From the preliminary graph the Nexxos XP is good, very good. A small fraction of a C better than the copper Cascade. Used in a loop cooling just the CPU it'd do a great job. But it's also shown to be a flow hog, 1.4gpm max flow with pH's pump in exchange for temps worse than the SS Cascade, G4 Storm or G5 Storm, all of which give better temps at higher flow rates.
The pressure drop is very high, to high. Add a open designed GPU block into a loop with that block and you may manage 1.25 gpm for your system flow rate. Add a higher performing, but more restrictive GPU block & you'll be way down on flow rates, and that's with a stronger than average pump. A average pump would do even worse. Last edited by Blackeagle; 11-12-2004 at 12:46 PM. |
11-12-2004, 12:45 PM | #16 |
Big PlayerMaking Big Money
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Location: irc.lostgeek.com #procooling.com
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You can get by with a block with higher pressure drop if it's going almost exclusively in small ID loops with weaker pumps. In fact that's just the tradeoff you have to make to boost water velocity (and heat transfer) if you can't increase pump power or decrease resistance of the rest of the loop. It's not a bad block at all IMO.
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11-12-2004, 12:50 PM | #17 | |
Thermophile
Join Date: Oct 2002
Location: U.S.A = Michigan
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Quote:
Can't argue with your reasoning pH. It is a good block for a CPU only rig with small lines. But the Storm is more impressive for temp improvements. And the G4 & G5 preserve more flow rate for a GPU block to also perform at a high level. And the SS Cascade preserves a good deal more flow for a GPU. |
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11-12-2004, 01:14 PM | #18 |
Thermophile
Join Date: Oct 2002
Location: U.S.A = Michigan
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Making use of the flow rates of the SS Cascade, G4 & G5 from the interactive graph.
G5 gives .2gpm more flow & best temps of any tested block. G4 gives .45gpm more flow + temp gain over the Nexxos. SS Cascade .82gpm more flow & neutral temp differance. Temps of the Nexxos XP are very good. I just prefer the flow rates of the Little River blocks, so you've more potential for max performance of a whole system, where the GPU is also water cooled. The Nexxos looks to be less than 1 full C behind the Storm G5 in temps, which is impressive. The Nexxos is so close that the Little River blocks will show little or no advantage in O/C of a system's CPU. But if a GPU is added, the higher preserved flows of the 3 Little River blocks will allow better temps & higher O/C's on the GPU block. So in a real rig, with both CPU & GPU blocks, the Little river blocks use would result in a higher performing system. Edit: Removed section that had nothing to do with the performance of the blocks. Last edited by Blackeagle; 11-12-2004 at 01:46 PM. |
11-12-2004, 01:43 PM | #19 | |
Cooling Savant
Join Date: Dec 2003
Location: France
Posts: 291
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Quote:
Also people (mostly Europeans ) who use this type of CPU block tend to use restrictive/low flow GPU blocks , so your argument about the poor GPU overclock/system performance is moot. Last edited by lolito_fr; 11-12-2004 at 01:54 PM. |
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11-12-2004, 01:56 PM | #20 | |
Thermophile
Join Date: Oct 2002
Location: U.S.A = Michigan
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pH's test set up was the source of the data on flow rates & temps, the interactive graph here at Pro Cooling. For info on his test loop, see the stats linked in any of his testing articles. Addition of a GPU block would not change how restrictive these CPU blocks are, would only lower the prior existing flow rate in exchange for water cooling the GPU. |
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11-12-2004, 02:05 PM | #21 |
Cooling Savant
Join Date: Apr 2004
Location: Wisconsin
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I may be wrong but what all the info given says to me is that what I consider the typical low flow setup, small tubes (6~8mm id) fairly weak pumps (Ehiem 1046~1048s) and multiple blocks the MCW6000 would be a better choice and the NexXosXP would be a better choice for less restrictive systems than most any other comercially available block.
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11-12-2004, 02:05 PM | #22 | |
Cooling Savant
Join Date: Dec 2003
Location: France
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So?? |
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11-12-2004, 02:06 PM | #23 | |
Thermophile
Join Date: Oct 2002
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Quote:
Ah, didn't notice you're from France before. For a strictly low noise rig, I do agree that the Nexxos block is a fine choice, as those seeking very low noise don't O/C. And addition of a GPU block wouldn't matter as you point out. But in a high performance OC'd 10mm ID EU rig (.4" US) the differances, while reduced a bit due to smaller ID lines, would still be there & would matter. |
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11-12-2004, 02:14 PM | #24 | |
Cooling Savant
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Location: winnipeg
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11-12-2004, 02:24 PM | #25 | |
Thermophile
Join Date: Oct 2002
Location: U.S.A = Michigan
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Quote:
As to how one system can O/C better, lower temps help higher clocks. Though you'lll note if you read my posts agian that the higher clocks, for the most part, would come not from the CPU as the Nexxos and 3 Little River blocks I named are all within 1C of each other. The higher clocks come from the higher preserved flow rates of the Little River blocks going through a GPU block, giveing the GPU lower temps which allows for a higher over clock of the GPU and thus higher total system performance. |
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