3.6 Power Supplies

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10 Terms

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North American Input Voltages

110 - 120 volts AC

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European Input Voltages

220 - 240 volts AC

3
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3.3V Output Voltage Powers:

CPU

RAM

M.2 SSDs

PCLe

4
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5V Powers

Older USB

CD & DVD drives

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12V Powers

SSD

Hard Drives

Fans

GPU

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Redundant PSU

primary and backup PS so it does to backup if primary fails

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Non-Modular PSU

all connector cables are permanently attached to the PSU and cannot be detached even if they are not in use

  • poor cable management

  • can restrict airflow


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Fully Modular PSU

  • all the connector cables can be manually attached or detached if needed

  • better cable management

  • lower operating temps


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Semi-Modular PSU

only the necessary cables are permanently attached

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80 Plus

certification for PSUs that have at least an 80% power efficiency