Review Index:

Koolance PC4-1025BK 1kW Liquid Cooling System Review

Manufacturer: Koolance


What do you get when you combine one of the most popular aluminum mid-tower enclosures with a state of the art liquid cooling system?  The result is the Koolance PC4-1025!  The PC4-1025 is the flagship product in Koolance's 1kW series of liquid cooling systems, designed for heavy thermal applications with multiple heatsources: multiple CPUs, GPUs, and other components that benefit from liquid cooling.  The PC4-1025 promises increased performance over previous Koolance systems thanks to a more powerful pump, larger radiator and three 120mm fans.  And all this cooling goodness comes pre-installed inside a beautiful aluminum enclosure.  All you have to add are cooling blocks of your choice.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />



Koolance is a well-known name in the PC water-cooling community, thanks in part to their popular Exos line of external liquid cooling systems and many liquid cooling accessories that are professionally designed and built to meet consumer's needs.  The PC4-1025 delivers advanced features and promises easy installation.  Think of the PC4-1025 as an integrated Exos-2 on steroids.



The PC4-1025 is built on a Lian Li PC-V1000 chassis and is available with either a silver-aluminum or black finish.  Built into the top of the aluminum enclosure is a large radiator with three 120mm fans.  The pump, clear plastic reservoir, controller, and a temperature display panel are combined in a 5.25' bay unit.  Koolance also offers a large variety of coolers for all major hardware devices (CPU, GPU, Chipset, and HDD) but none come bundled with the PC4-1025; they must be purchased separately.  However, for this review, the good folks at Koolance sent along a CPU-305-V10 and a pair of VID-200-L06 waterblocks to facilitate testing… :)



PC4-1025BK <?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" />Main Features:

  • Self-contained, easy to install liquid cooling system

  • Industry leading aluminum, mid-tower chassis

  • Up to 1,000 watts cooling capacity — supports multiple heat sources

  • Automatic or manual fan speed control (10 manual levels)

  • LED display panel with fan speed controls

  • Programmable safety alarm and automatic shutdown

  • Auto cycle or static display of connected temperature sensors

  • Clear reservoir with blue LED lighting and top fill port

  • Powerful DC pump (DDC rev 2) for increased flow rate

  • Full length radiator with three 120mm cooling fans

  • Clean lines and professional styling

The PC4-1025 is the most powerful liquid cooling system ever produced by Koolance.  Compared to the Exos line, the PC4-1025 series incorporates a larger radiator, three 120mm fans (instead of two 120mm or three 80mm fans), and a much higher output pump.  The following graph (from the Koolance website) shows the relative performance  difference between the various Koolance liquid cooling systems.


Relative performance is based on total wattage dissipation potential while maintaining a heat load at 55°C (131°F) with an ambient room temperature of 25°C (77°F) with fans at 100% power.  Actual system performance may vary.


No comments posted yet.

Post new comment

The content of this field is kept private and will not be shown publicly.
  • Lines and paragraphs break automatically.
  • Allowed HTML tags: <a> <em> <strong> <cite> <code> <ul> <ol> <li> <dl> <dt> <dd> <blockquote><p><br>
  • Web page addresses and e-mail addresses turn into links automatically.

More information about formatting options

By submitting this form, you accept the Mollom privacy policy.