Hardware Reference
In-Depth Information
Another distinguishing feature of the LPX design is the standard placement of connectors
on the back of the board. An LPX board has a row of connectors for video (VGA 15-pin),
parallel (25-pin), two serial ports (9-pin each), and mini-DIN PS/2-style mouse and key-
board connectors. All these connectors are mounted across the rear of the motherboard
and protrude through a slot in the case. Some LPX motherboards might have additional
connectors for other internal ports, such as network or small computer systems interface
(SCSI)adapters.BecauseLPXsystemsuseahighdegreeofmotherboardportintegration,
many vendors of LPX motherboards, cases, and systems refer to LPX products as having
an “all-in-one” design.
The standard form factor used for LPX and mini-LPX motherboards in many typical low-
cost systems is shown in
Figure 4.6
.
Figure 4.6
LPX motherboard dimensions.
