Mayhems Havoc 240

Mayhems has been the provider of the best dyes and fluids in the watercooling industry. It came as no surprise when Mayhems announced their own line of 120mm based radiators. The Havoc series has been in the making for quite a while and has generated some buzz. It’s great to not just have more choices, but to have a new addition to the radiator market from a big name as Mayhems.

The Mayhem Havoc radiators have some unique features that I still have yet to witness in other radiators. From the flow path to fin design there are some interesting things to look here. For this review we are going to look at the Havoc 240 radiator. Given the popularity of small builds thanks to the Parvum cases, I think a 240 radiator review is great test for performance.

Mayhems has also raised the bar high when it comes to value for money. The radiators come with a nice acrylic Havoc Rad Grill, a Mayhems Blitz cleaning kit (part 2), enough Mayhems XT1 concentrate to make 2 liters of coolant, and a lifetime warranty; all that at a price of around $75.15 makes it a great deal. In other words, you get a lot of bang for your buck.

For more information please visit –

W – 125mm x D – 63mm x H – 286mm

W – 4.92″ x D – 2.48″ x H – 11.26″

Mayhems Havoc 240 mm Radiator Specs

  • Quad Reflow Chamber
  • Screw Anti-Piercing Plates on both sides
  • Push, Pull and Push/Pull Configerd
  • 2 Port
  • Copper Louver Fins (9 FPI @ 30 micron)
  • 36 Copper Tubes (3 rows of 12)
  • High Grade Brass End Tanks
  • 125mm x 63mm x 286mm (Width x Depth x Height)
  • Weight : 1.1 kg
  • Matt Black Coated
  • RoHS Compliant
  • 180 Degree Logo
  • Includes a Mayhems Mini Blitz kit (part 2 only and enough to make 4 Ltrs)
  • Includes Mayhems XT1 Concentrate (enough to make 2 Ltrs)
  • Guaranteed not to discolour premixed coolants (from new)
  • lifetime warranty

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10 thoughts on “Mayhems Havoc 240

  1. Great job on the review Jay. This is first time I’ve seen a radiator include a custom grill, too. I’m looking forward to seeing more Liquid Cooling product reviews on the Zoo!

  2. Thanks for the nice words guys.
    @Spidey81, that is very interesting. I had not seen the V2s or ever owned one. I did do a review on the V3 not too long ago.
    Thanks for bringing that up to me. Once I get home, I’m going to check some of the other radiators that I have from Alphacool, XSPC, and Hardware labs to see if they have a similar design as well. If they do, then I guess I need to get my eyes checked. 

  3. Okay, I stand corrected. Thanks for pointing it out spidey81. Looks like the EX series had the Louver fins as well, just not as prominent as the Havoc series. 
    Its settled, I shall get my eyes examined. 

  4. No problems.  I still think the value adds for the Havoc make it stand out from the crowd.  Wonder how many rads actually make use of that “louver” feature.

  5. No problems.  I still think the value adds for the Havoc make it stand out from the crowd.  Wonder how many rads actually make use of that “louver” feature.

    I updated the review, and Mayhems also confirmed that the radiators will include the XT concentrate to make 2 ltrs of coolant. 

  6. I got some early engineer-samples of the original RX line (some 240’s and 360’s) back in the day that were glossy-sprayed (crap finish on them) but the rads performed admirably for the time, and especially cost as a factor.  They definitely weren’t Thermochill PA rads, but they kind of filled in a niche in the market at the time after the supply dried up for those much-sought-after rads. 
    Now, things are different.  A lot of very similar stuff is out there now under different names.  But progression in rad technology is what drives the expansion of this ‘hobby’.  I really want to get my hands on one of these Havocs for this reason.

  7. Let’s be honest here… The radiator tech everyone’s screaming about patents on has been in development over as century now. I have an example of louvered fins on a radiator that dates back to 1963 in my garage, for example.
    It’s just SOP for the corporate end to sue. Litigate the shit out of new guy.

  8. E.E.L PM me and ill sort you out what you need. There is another review comparing it to the top rads and put it this way were not disappointed and our tech works quite well.

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