Alphacool NexXxos X2 Bold Highflow water block

Test Setup

Test Setup

For the testing phase of the review I have chosen to test the Alphacool NexXxos X2 Bold HIGHFLOW against a well known water-cooling block, the XSPC X2O Delta. A Laing DDC Pro pump with OCLabs alternative top will be used to assist in making a comparison. I shall be looking specifically at pressure drop, flow resistance and cooling performance from within a water-cooling loop. All tests will be run 3 times to ensure the elimination of any oddities.I have included the setup details below:

Pressure Drop

For the pressure drop test I used a 25L portable water container filled with 20 litres of water, with a 1/2" plastic threaded barb placed in the bottom to represent the reservoir. A stop tap was inserted immediately after the 1/2" barb to allow for a faster water-block change. The True-Flow pressure meter was used to record the head pressure per 1 minute testing cycle. The pump was primed and let run for a short period to ensure that no air bubbles were left in the loop. The water was allowed to run back into the container after passing through the pressure meter meter via a 'T' connector in order to minimise wasted time between water-block changes.

The first run made was with only the pump and pressure meter included in the loop and the water pressure noted. Then for second run the Alphacool NexXxos X2 Bold HIGHFLOW waterblock was included into the loop and the drop in loop pressure recorded. The same procedure will be followed for the XSPC X2O waterblock.

* 1 x Laing DDC Pro pump with OCLabs alternative top @ 12v
* 1 x Alphacool NexXxos X2 Bold HIGHFLOW and XSPC X2O waterblock
* 1 x Powertech variable DC power supply (quoted accuracy /- 0.2V)
* 1 x Multi-meter
* 25L portable water container
* 1 x Glycerine filled True-Flow pressure meter. (kPa/PSI)
* 1/2" ID XSPC tubing
* 1/2" barbs
* 2 x stop-tap fittings

Flow

In a similar test to the pressure drop testing above, the flow test will highlight just how much the waterblocks restrict the natural flow of the watercooling loop. Utilising a very simple setup consisting of a pump, I/2" ID tubing, waterblocks, bucket and a stopwatch we will see how far removed from the absolute flow of the pump, that the waterblocks hinder flow.
Running the pump into the bucket for one minute and then measuring the amount of water pumped will be the 'absolute flow' of the pump.

To calculate the flow-loss or restriction of each waterblock, they will each be included into the loop (one at a time) and the same procedure followed. The flow rate will be recorded in Litres/ hour. All simulations will be run 3 times each to ensure uniformity of the results and an average then taken.

Loop Simulation and cooling performance

I have decided to impliment a control setup for the testing phase of this review. In doing so I have replicated a watercooling loop similar to that in conventional water cooled setups, but also one that should return consistant and unbiased performance results. The open loop that I have chosen to run with will use be semi-restrictive in nature, but again should give quite a good indication of how the Alphacool NexXxos X2 Bold waterblock would perform in your system. The Alphacool NexXxos X2 Bold's performance will be assessed at the Laing DDC Pro's operating voltage of 12 volts. For each run, the pump was allowed to run for 20 mins to ensure the evacuation of all air from within the loop. The temperatures were taken at 30 minute intervals to allow them to 'settle'. Two instances of ORTHOS will run simultaneously in order to simulate load.

Arctic Silver 5 TIM was used instead of using the syringe supplied in the Alphacool NexXxos X2 Bold packaging. I have recorded temperatures at idle, load and and an overclocked loaded state; all temperatures were taken using Core Temp 0.95.4 beta and water/ambient temperatures were taken using a common household mercury thermometer. The mercury thermometer was allowed 5 minutes to aclimatise to air and water and then the temperature recorded. The setup used has been included below:

* 1 x Laing DDC Pro pump with OCLabs alternative top @ 12v
* 1 x Alphacool NexXxos X2 Bold HIGHFLOW and XSPC X2O waterblock
* 1 x Powertech variable DC power supply (quoted accuracy /- 0.2V)
* 1 x Multi-meter
* 1 x Tribal Overkill reservoir
* 1 x Toyota Camry heater core
* 2 x Scythe Minebea 120mm cooling fans
* 1/2" ID XSPC tubing
* 1 x Swiftech MCW60 GPU block
* 1/2" barbs.
* 1 x Intel Q6600 SLACR G0 stepping quad-core processor
* 1 x ASUS P5B Deluxe wifi/App motherboard (bios version 1101)
* 1 Palit 8600 GT graphics card
* Logitech generic mouse
* Logitech G15 keyboard
* 2GB OCZ PC2-6400 Titanium RAM
* Antec NEO EarthWatts 500W PSU
* 250 GB Seagate SATA II HDD

Please follow with me over the page to see the test results...
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Most Recent Comments

02-11-2007, 08:18:40

PV5150
Alphacool is back, and to help celebrate we've reviewed their new NexXxos X2 Bold HIGHFLOW waterblock.

Take a peak

02-11-2007, 09:42:19

WC Annihilus
Just to mention, last two pages still have default titles

02-11-2007, 12:22:31

AydST
Great review

In response to this Alphacool have adjusted their UK pricing and while PV's review was correct at the time of print, the new revised price is 35.99 inc VAT.

02-11-2007, 16:20:58

sbrehm72255
I've always liked Alphacool products, but they are all so damned expensive over here in the US.

02-11-2007, 18:13:21

AydST
there is a reason and it is my eternal argument with Alphacool (sorry Chris)

While 'other' manufacturers have their products made in the far east, Alphacool, who are a German company, have their products made in Germany. As we all know, especially with me being a quallified engineer, if you want a quality produced product...look to Germany. Sadly this does get reflected in the price as there are no sweat shops in Germany but all in all with Alphacool you wil be getting a quality crafted product.

After all Audi, BMW, Mercedes, Lamorghini etc.. can't be wrong....

02-11-2007, 18:52:49

sbrehm72255
LOL......true to a point, I lived and worked in Germany for Mercedes for a long period of time before moving back to the US...........

The US government is the other reason all European products cost so much (import duties, shipping and the like).

02-11-2007, 22:58:45

PV5150
Quote:
Originally Posted by name='WC Annihilus'
Just to mention, last two pages still have default titles
Fixed, thanks WC

Quote:
Originally Posted by name='AydST'
Great review

In response to this Alphacool have adjusted their UK pricing and while PV's review was correct at the time of print, the new revised price is 35.99 inc VAT.
Thanks Ayd, I'll make an addendum to the review to reflect the price drop.

Quote:
Originally Posted by name='AydST'
there is a reason and it is my eternal argument with Alphacool (sorry Chris)

While 'other' manufacturers have their products made in the far east, Alphacool, who are a German company, have their products made in Germany. As we all know, especially with me being a quallified engineer, if you want a quality produced product...look to Germany. Sadly this does get reflected in the price as there are no sweat shops in Germany but all in all with Alphacool you wil be getting a quality crafted product.

After all Audi, BMW, Mercedes, Lamorghini etc.. can't be wrong....
Agreed, if you want a quality manufactured item then there is going to be some price difference. I included it as a sticking point merely because the better performing D-TEK FuZion was cheaper, and if Alphacool are looking to regain lost ground then this is an area that they will need to address (which they have to their credit). However, I think that 'dyed in the wool' Alphacool fans may overlook the price difference regardless...

Thanks all for the feedback, tis muchly appreciated
Reply
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