A Detailed Look – The PSU
When I first heard that Koolance was about to release a liquid cooled power supply, I assumed that it would incorporate one or more waterblocks instead of the heatsinks used in traditional air cooled PSUs. However, I soon learned that the new Koolance 1,200W power supply uses true submersive cooling. While some hard-core enthusiasts have been experimenting with various forms of submersive cooling for years, this is the first commercial PC product I am aware of that uses this technology – wow, now that’s kool!
The Koolance 1,200W liquid cooled power supply is big and heavy. The build quality appears to be very good and the fit-n-finish is excellent. A combination of tough engineering plastic, black anodized aluminum and steel parts are used in the construction. The Koolance name is laser-etched into the sides and top. Add in the blue LED lighting effects and this power supply is a real looker.
Attached to the front of the power supply is a removable radiator and fan assembly, which is hinged and swings out to provide access to the rear panel connections and hoses.
When the power supply is mounted into a PC enclosure the back panel is flush with the back of the case, leaving the radiator/fan assembly sticking out the back of the case for good air circulation. The back panel has connections for a power cord, radiator fan cable, and two coolant hoses.
The Koolance 1,200W liquid cooled power supply is rated for a combined, continuous output power of 1,200 watts at up to 40°C ambient air temperature (1,400W peak). The Koolance PSU incorporates universal input (automatically adjusts the AC line voltage) and active PFC that adds to the units environmental friendliness.
Koolance PSU-1200ATX-12S Specifications
Notice that the majority of the rated output capacity is supplied by the +12V section.
This is typical of most newer power supplies and a result of changes in the PC industry that more and more rely on +12V instead of +5V and +3.3V. With over 1,000W of power available on the +12V rail, the Koolance PSU should be capable of powering most any new system you may want to build.
Quad +12V output
The Koolance 1,200W PSU incorporates four +12V outputs. As is the case in most PC power supplies, the four +12V outputs are all derived from a common +12V source and differentiated with individual current limiting circuits. The following table shows the maximum rated current and what connectors are supplied by each output.
Note: The maximum combined load for all four +12V outputs is 85A (1,020W).