Technical Bulletin 2-9-16

Subject:  X2 series CPU looking kits

1/ Scope

We have identified a potential issue with an undetermined number of PWM splitters (revision 1) included with the above kits, and shipped to consumers and US resellers between January 15th , and January 28th.

2/ Nature of the issue

Weak solders joints of the power and signal cable to the PCB may cause wires to easily come loose.

3/ Symptoms of a defective unit

Some or all devices connected to the splitter will not operate at all or operate erratically.


4/ Resolution 

Recall of the potentially faulty revision 1 PWM splitter, and replacement by revision 2 of the splitter. 

  • Temporary cooler operations:

a.      We recommend discarding your existing revision 1 PWM splitter.

b.      The CPU cooler is thermally functional without use of the PWM splitter.  While waiting for a replacement, customers can connect their fans to the motherboard auxiliary fan headers for instance, and connect the pump pwm 4-pin connector to the motherboard “CPU_Fan” header.

  • Permanent cooler operations:  replacement of the device by the new revision 2 PWM splitter available now with the RMA procedure described below.


5/ RMA procedure:

  • Please contact us either by email at or by phone at 310-763-0336 or 888-857-9438, and all efforts will be made to send a free replacement unit within 72 hours by first class mail.
  • In order to ascertain that the unit is eligible for replacement, we ask that customers provide a picture of their existing splitter,  the serial number of their pump (located on the label affixed at the back of the pump), and a copy of the purchase invoice showing a current ship to address.
  • How to make sure that the splitter qualifies for replacement:   the potentially faulty units are ONLY revision 1 of the splitter.   Revision 2 is NOT subject to recall.  To recognize revision 1 from revision 2, please observe the top surface of the housing where the connectors are located:  revision 1 has a flat top; revision 2 has a raised center section, as shown below.









View all Swiftech IRIS Products!

Chat with us on Discord Follow us on Instagram!

Follow Swiftech on Twitter Follow us on Youtube!

Follow us on Instagram! Follow us on Facebook

Mailing Lists