eXtreme Power Supply Calculator - The only power supply calculator trusted by PSU manufacturers and computer enthusiasts.
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eXtreme Power Supply Calculator Lite |
Latest Updates:
September 16, 2014 | July 03, 2014 | May 06, 2014 | December 25, 2013 | October 30, 2013 | June 19, 2013 | March 24, 2013 | view all updates
The eXtreme Power Supply Calculator contains 1800+ CPUs including latest processors from Intel and AMD, latest graphics cards from NVIDIA and AMD, DDR4 RAM, Bitcoin Mining Modules and more!
The recommended total Power Supply Wattage gives you a general idea on what to look for BUT it is NOT a crucial factor in power supply selection! Total Amperage Available on the +12V Rail(s) is the most important, followed by the +5V amperage and then the +3.3V amperage.
eXtreme Power Supply Calculator Pro version contains Amperage per +12V, +5V and +3.3V power supply rails, recommended UPS rating, multiple video cards and more. See the Features Comparison table here.
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System Type: Based on physical processor(s) or # of sockets. Multicore CPU counts as a single processor. For example: for a single Core 2 Duo you should select 'Single Socket' as System Type. |
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TDP - Thermal Design Power. We recommend 85-90% since it is very rare that CPU will utilize 100% of TDP. |
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System Load: 100% (peak load) - all components are at 100% load, including start up surge current compensation. |
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Electrolytic capacitor aging. When used heavily or over an extended period of time (1+ years) a power supply will slowly lose some of its initial wattage capacity. We recommend you add 10-20% if you plan to keep your PSU for more than 1 year, or 20-30% for 24/7 usage and 1+ years. |
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See our Terms of Service for details. |
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Recommended UPS rating is based on the selected components only and does not include monitor, printer or any other electronic devices that are not a part of the eXtreme Power Supply Calculator. |
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