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After successfully installing the
motherboard in the computer case, proceed with attaching the
appropriate power supply connector(s) to it. This process is easy with
an ATX (boards and power supply) because there is only one connector
that is also keyed to fit only one way. Take more care with the older
AT systems because there are two separate, but physically identical
connectors that must be plugged in a specific way. This is covered in
the next section.
The following are the steps for connecting the power supply
cables to the motherboard:
| Step 1
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On an AT system,
first locate the two large wire leads from the power supply
labeled P8 and P9.
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| Step 2
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Locate the large
12-pin power connector on the motherboard. It is usually found
right behind the keyboard connector.
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| Step 3
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Plug the P8 and P9
wire lead connectors in the 12-pin power connector.
Caution: Make sure
the black wires are in the middle, right next to each other.
If this configuration is reversed, the motherboard is likely
to be damaged when the power is turned on. Pressure might have
to be applied to insert the connectors. On an ATX system,
there is one large 20-pin (P1) connector. It is keyed for easy
installation.
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Sometimes it is helpful to delay attaching the power connector
to the board until all the components have been installed that
need to go on the motherboard so that there will be more
maneuvering room to work inside the case.
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Lab
Activity (PDF, 12 KB) |
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In
this lab, you will place the motherboard into
the case and secure it. |
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Video
(1:59 min) |
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Preparing and Installing the Motherboard |
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