Motherboard Technical Reference; Motherboard Connectors; Figure 4. Connector Groups - Lenovo Aptiva Product Manual

5 Motherboard Technical Reference

Motherboard Connectors

The motherboard's connectors can be divided into three groups, as shown in Figure 4.
CAUTION
Many of the midboard and front panel connectors provide operating voltage (+5 V DC and
+12 V DC, for example) to devices inside the computer chassis, such as fans and internal
peripherals. These connectors are not overcurrent protected. Do not use these connectors for
powering devices external to the computer chassis. A fault in the load presented by the external
devices could cause damage to the computer, the interconnecting cable, and the external devices
themselves.
A
B
C

Figure 4. Connector Groups

Back panel connectors
A
(see page 60)
B Midboard connectors
(see page 61)
C
Front panel connectors
(see page 62)
OM08852
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