XSPC Raystorm X2O 750 RS240 Extreme Universal CPU Water Cooling Kit

Posted: February 16, 2013 in Blocks, Fans, Kits, Pumps, Radiators
Tags: , , , , , ,

Living Conclusion

These are some random thoughts so far as I complete this living review:

  • For $145, it’s an excellent value
  • I like the LED modules for the CPU block and Pump/Reservoir
  • Pump Reservoir does require a spare double drive bay to install
  • Reservoir is super easy to bleed particularly with a bottom rad mount setup.
  • Radiator has better paint quality than the H220, it is black and of better finish
  • Tubing is rather stiff and has a slight yellow/brown color to it, suggest getting better tubing.
  • Has nice G1/4 1/2″ black chrome plated brass barbs, these look really nice and work very well.
  • G1/4 threading does allow replacement with compression fittings if users choose or other tubing sizes.  This is more flexible than H220.
  • Fans are regular 3 pin fans, voltage control only.  They seem well built, but noise levels were higher than the H220 by a bit despite the lower top speed.
  • Kit does not come with fluid.  I had to go out to Wal-mart to pick up some distilled.  FCPU did provide Deadwater biocide (Copper Sulfage), so it only cost me an extra buck for DI water.
  • Mounting mechanism is all loose parts, I dropped a spring and had to go searching.  Not nearly as clean and easy as the H220 mounting system.
  • Pump is surprisingly quiet even when solid bay mounted, really don’t expect many having pump noise complaints.  These V4 pumps are very silent.
  • Very short 12month, 1 year warranty.  H220 is 3 years, Corsair H100 is 5 years.  No pump MTBF rating either.
  • Limited “Auto” speed control for silence, depends on motherboard voltage control capabilities relative to CPU temp.  I have one header that can do that, but not enough to power the entire case of fans.
  • Thermal K2 compound was separating and runny
  • Comes with External Radiator Mounting brackets
  • Comes with ATX PSU jumper tool
  • Generally looks sharp, subjectively a bit nicer looking than the H220 if you like the LED and front Reservoir look.
  • Nowhere near as easy to install as the H220.  Took the better part of a day to do where the H220 was less than an hour.
  • Performance is very good and close to the H220, pretty much the same with the same fans although the H220 fans are a bit quieter at full speed.


Overall the XSPC kit is very nice.  It is definitely a DIY kit and you should expect a couple days worth of work putting it in, bleeding it per the recommended 24 hours, then putting your hardware back in for use.  There are many small parts and pieces to put together, however there are some rewards with this.  If you decide to upgrade the CPU block later, all you have to replace is just the block.  If you decide you want to use compression fittings,  no problem…this is the standard G1/4 threading and can accept any standard fitting. While there are a few things I would suggest upgrading (namely the tubing) the kit is a great start in water-cooling DIY.  The warranty is a rather short 12 months, but as fast as we upgrade parts in water-cooling, that may be plenty long for you anyhow.  While I can NOT test and report reliability related things, you should do some searching in the forums and ask others how they like the kit.  I’d be very happy for the price point and parts you get.  I could also see converting the pump/reservoir into just a reservoir later if I decided to upgrade the pump later using that extra reservoir port.  Adding a VGA and radiator should be no problem for the kit pump as well.  In the end you get a nice starter kit with fairly common and well known good performing parts.

Is it better than the H220?  Well..  It does have a few advantages with the G1/4 threading and more DIY tubing routing flexibility. It also has the nice LED look and front case reservoir if that’s what you want, but thermal performance is about the same maximum.  The H220 actually has a slight lead regarding noise levels and control at the same thermal level.  The Helix fans are more quiet on a radiator and the PWM speed control of both pump and fans along with the 8 way PWM splitter makes auto speed (and noise) auto speed control easier on the H220 resulting in a lower minimum noise level. Then there is the warranty differences to think about.  The H220 provides a 3 year warranty with a 60,000 MTBF pump rating where the XSPC kit is only 1 year and no pump rating. That may or may not relate to reliability at all, but it does relate to your warranty coverage if something does go bad.  Then there is the price and installation difficulty.  The H220 is a bit cheaper by about $6 once you buy your distilled water, and the installation time is very different.  Part of me kind of likes building the system and cutting tubes and complete flexibility of the XSPC kit including external rad mount options, but there is also something to be said for plug and play convenience and simply not having to worry about the DIY installation work involved.  I will leave it to you to decide what is more important for your needs.


  • Extreme Value – $144.95 for kit plus biocide. Add a $1 gallon of distilled water and you have all you need for under $150
  • Extreme DIY thermal performance levels
  • G1/4 DIY Barb Compatibility – Standard 1/2″ barbs may be replaced with compression fittings or any standard water cooling fitting.
  • Nice black chrome 1/2″ barbs compatible with 7/16 or 1/2″ ID tubing.
  • External Radiator Mount Brackets provided
  • LED module for CPU block and Bay Reservoir adds some blue bling to the darkness
  • Front of case reservoir look, provides visual of coolant level.
  • Paint on radiator is better than competitive kits


  • Stiff tubing has a yellow/brown tint, makes clear water look dirty and harder to work with
  • Plastic clamps work but not as professional as other options
  • Short 1 year warranty and no pump MTBF rating. Reliability?
  • Loose parts mounting system without pressure guidance.  Easy to drop/loose small parts and potential for incorrectly installing block. How much pressure is just right? Too much?

XSPC has been working hard in refining the pump and now up to revision 4. It’s a very good kit, but the tubing, clamps, and fans could be improved as could the mounting mechanism to something that easier for people to use.  These are of coarse fairly minor things, some of which are just personal preference and some that could be easily upgraded. If you are are looking for a great starter DIY kit, this is one of them you should consider.  XSPC also has a line of other value kits to consider and I would always suggest installing the largest radiator you can fit.  If that means a 280 radiator or 360 radiator or a 240 plus a 120, do it.  If budget is less of a concern you could always choose a higher end kit as well with more pumping power and higher rating.  I had a lot of fun installing this kit and happy with the result, it’s a good kit and great value.

I’ll update some more as I get more done. This review is very drafty and a work in progress.


Where to buy

I would recommend buying from FrozenCPU, you can get the kit and pretty much anything else you might need all in one stop:


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  1. Cookiejar says:

    Hi Martin,

    In your RS360 review, the out/in air delta was about 8.8 degrees for 1400rpm fans at about 200w of heat. In this review, given the smaller RS 240 but similar fan speeds and heat loads, I was expecting to see out/in air deltas of maybe 13 degrees? Otherwise, the air wouldn’t be able to carry away the same amount of thermal energy.

    However from your tests, the RS240 seems to be able to dissipate the heat of your overclocked 3930K with only an out/in delta of 3 degrees. This befuddles me, and I can’t understand how the system achieves thermal equilibrium. How is all the rest of the heat lost?

    What are your thoughts on this? Could there be some difference in your air temp measurements as compared to the measurements done in your radiator tester. Maybe the rest of the case air is mixing with the air out?

    Thanks and your site is a great read = ).

    • Martinm210 says:

      Disregard the air out in these kits. It is located such that it gets cold intake air from the front case fan and really not useful or accurate. The air out in my rad bench is controlled and accurate but it is very hard to measure air out without some sort of rad test bench.

      That’s the downside of case testing. It better represents thermals and noise but harder to measure something like air out when you have air coming in all over the place. In the kit testing air in and core temps are really the only thing I can control very well.

  2. Steve Vang says:

    So this kit has everything needed to water cool? No need to buy tubes and screws?

  3. kopi luwak says:

    Hi! I realize this is kind of off-topic however I needed to ask.
    Does running a well-established blog like yours require a lot of work?

    I am brand new to running a blog however I do write in my diary every day.

    I’d like to start a blog so I can share my experience and thoughts online.
    Please let me know if you have any kind of ideas or tips
    for brand new aspiring blog owners. Thankyou!

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