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Mushkin Joule 1000W Power Supply Review

paulktreg    -   June 6, 2010
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Closer Look :

The Mushkin Enhanced Joule 1000W power supply is finished in a satin, slightly textured, black paint that does a great job of hiding finger prints and scratches.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The exhaust grill on the Joule is a large diamond mesh design that occupies as much space as possible for maximum airflow. A standard 10A 250Vac IEC mains input connector is used for the power cord connection along with a small rocker switch for mains input isolation. There are two slide switches on the rear panel - one that controls fan lighting colour, red, blue, and green or off (none) and another for multi or single 12V rail operation. There are two valid reasons for fitting a 1000W power supply. One, because you can (the word overkill does not exist in my dictionary), or two, because it’s needed. If it’s needed then it can only be for a powerful SLI or Crossfire configuration for which, in my opinion, the single 12V rail configuration is the way to go and that’s the way the testing will be performed. The opposite face carries the modular cable connections, black for peripherals and blue for PCI-E power. The captive cables, sleeved all the way into the enclosure, enter the power supply via a plastic grommet-protected port.

 

 

Not much to see on the sides, apart from six auxiliary ventilation slots.

 

 

The specification label is attached to the underneath face of the power supply along with a couple of production test stickers. The 120mm clear plastic bladed fan is protected with an internally mounted satin black grill with the Mushkin Enhanced trademark at its centre.

 

 

The Mushkin Enhanced Joule 1000W power supply comes with a captive cable set consisting of a 4+4 pin ATX12V/EP12V, two 6+2 PCI-E and a 20/24 pin motherboard connector. The modular cables aren’t bound with wire wraps, which means you get a set of straight cables that will be easier to neatly route inside the case. The colour coding is continued throughout the cable set plugs, with black for peripherals, blue for PCI-E and sky blue for the ATX12V/EPS12V connectors.

 

 

The 120mm cooling fan carries an HS brand mark, which could be the Taiwanese company Hang Sheng, but a search of the part number, A1225H12S, produced no results. The fan is manufactured from clear plastic, rated at 12V 0.45A and fitted with light emitting diodes, whose colour can be selected or switched off via the rear panel slide switch. The printed circuit board layout is a little cramped, but this is to be expected for a 1000W power supply and a quick search using the UL number cites Topower as the manufacturer.

 

 

The Mushkin Enhanced Joule 1000W utilises a twin 12V rail design as indicated by the two main transformers. This is not uncommon these days in high-powered units. The electrolytic capacitors are all rated at 105°C and quality components by Teapo.

 

 

The build quality of the Mushkin Enhanced Joule 1000W power supply is on the whole pretty good and in combination with one or two nice features, adequate packaging and a good set of accessories, looks good so far, so let’s move on and have a look at the specifications and see how well it performs.




  1. Introduction & Closer Look
  2. Closer Look (The Power Supply)
  3. Specification & Features
  4. Testing: DC Voltage Load Regulation
  5. Testing: Efficiency, Power Factor & DC Quality
  6. Testing: Temperature, Noise Level & Fan Speed
  7. Conclusion
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