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PC Hardware in a Nutshell, 3rd Edition by Barbara Fritchman Thompson, Robert Bruce Thompson

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Power Supply Characteristics

Here are the important characteristics of power supplies:

Form factor

As with cases, the primary characteristic of a power supply is its form factor, which specifies dimensions and mounting hole locations, which in turn determine which case form factor(s) the power supply fits. Form factor also specifies the type of motherboard power connectors the power supply provides, which in turn determines the type(s) of motherboards the power supply supports. Table 26-1 lists compatibility of power supplies with cases.

Table 26-1. Power supply compatibility with case form factors

Accepts these power supply(s)

Case form factor

D/AT

T/AT

D/BAT

T/BAT

LPX

ATX

SFX

NLX

WTX

Desktop/AT (D/AT)

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--

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--

--

--

--

--

--

Tower/AT (T/AT)

--

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--

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--

--

--

--

--

Desktop/BAT (D/BAT)

--

--

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--

--

--

--

--

--

Tower/BAT (T/BAT)

--

--

--

--

--

--

--

--

LPX

--

--

--

--

--

--

--

--

ATX

--

--

--

--

--

--

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