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For example, a 900-watt power supply with the 80 Plus Silver efficiency rating (which means that such a power supply is designed to be at least 85% efficient for loads above 180 W) may only be 73% efficient when the load is lower than 100 W, which is a typical idle power for a desktop computer. Thus, for a 100 W load, losses for this supply ...
A heavily loaded power supply and the computer it is powering generate significant amounts of heat, which may raise the power supply temperature, which is likely to decrease its efficiency. Since power supplies are certified at room temperature, this effect is not taken into account. [5] [15] 80 Plus does not set efficiency targets for very low ...
Super Flower Computer Inc. (Chinese: 振華電腦有限公司; pinyin: Zhènhuá diànnǎo yǒuxiàn gōngsī) is a Taiwanese company founded in 1991 [1] that manufactures power supplies, enclosures, and related components for personal computers and servers.
PC Power and Cooling (stylized as PC Power & Cooling), a subsidiary of FirePower Technology, is an American manufacturer of computer power supplies based in Carlsbad, California. The company was established by Doug Dodson in 1985. In 2007, the company was acquired by OCZ Technology. In 2014, FirePower Technology acquired OCZ Technology Group's ...
A modern computer power supply is a switch-mode power supply that converts AC power from the mains supply, to several DC voltages. Switch-mode supplies replaced linear supplies due to cost, weight, efficiency and size improvements. The diverse collection of output voltages also have widely varying current draw requirements.
The ATX specification requires the power supply to produce three main outputs, +3.3 V, +5 V and +12 V. Low-power −12 V and +5 V SB (standby) supplies are also required. The −12 V supply is primarily used to provide the negative supply voltage for RS-232 ports and is also used by one pin on conventional PCI slots primarily to provide a ...
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