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Ultra Products X3 600W Modular Power Supply Review

Manufacturer: Ultra Products
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A Detailed Look

The Ultra X3 600W modular power supply features a steel enclosure with a black-chrome mirror finish that is very attractive but easily scratched. 


The power supply uses a single, large fan on the bottom-side for cooling, which is the same fan Ultra uses on their larger X3 800W and 1,000W PSUs.


The 135mm cooling fan is made by Young Lin Tech (DFS132512H).  This is a high-speed model that has 11 blades and uses ball bearings.  To help keep things quiet, the fan speed is automatically controlled by the internal component temperature (speeds up as the combined load and temperature increases).  


The fan mounting screws and free-flow wire grill are nicely recessed for easy installation of the PSU into a case.


Air is drawn in thru the bottom of the power supply by the large cooling fan and exits thru slots on one side and the open honey comb grill on the back. 


The Ultra X3 power supply supports the ATX12V v2.2 specification and is rated for a combined, maximum output power of 600 watts at up to 40°C ambient air temperature (internal case air temperature).  The Ultra X3 PSU incorporates universal input (automatically adjusts the AC line voltage) and active PFC that adds to the units environmental friendliness. 

Ultra X3 600W PSU Specifications


Single +12V output

The Ultra X3 600W modular PSU incorporates a single +12V output.  This is a trend we are seeing in newer power supplies.  Some manufacturers are no longer creating multiple +12V outputs by implementing current limiting circuits into their design to conform to the 240 VA maximum guidelines – no single output should exceed 240 VA (12V x 20A = 240 VA).  Having multiple current limited +12V outputs can lead to power distribution problems, particularly with some power-hungry video cards.  Delivering a single, powerful +12V output is a much better approach IMHO.

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