Signal Distribution - HP Compaq dc7900 USDT Technical Reference Manual

Power and Signal Distribution
7.4

Signal Distribution

Table 7-7 lists the reference designators for LEDs, connectors, headers, and switches used on the
system boards for systems covered in this guide. Unless otherwise indicated, components are
used on all system boards.
Designator
CR1
E1
E14
E49 / JP49
J9
J10
J20
J21
J22
J31
J32
J41
J42
J50
J68
J69
J78
J103
P1
P3
P5
P6
P8
P9
P10
P23
P24
P52
P53
P54
P60
P61
P62
P63
P64
P124
P125
P126
P150
P151
7-10
System Board Component Designations
Component function
+5 VDC LED
Descriptor table override header
SPI ROM boot block header
Password clear header / jumper
Stacked RJ-45 & dual USB connectors
Stacked quad USB connectors
PCI 2.3 connector
PCI 2.3 connector
PCI 2.3 connector
PCIe x1 connector
PCIe x1 connector
PCIe x16 graphics connector
PCIe x4 graphics (x16) connector
Parallel port
Stacked keyboard, mouse PS/2 connectors
VGA monitor DB- 1 5 connector
Stacked audio line-in, headphone/line-out 1/8" jacks
DC input
Power supply connector
Vccp (PWRCPU) header
Control panel (power button, power LED) header
Internal speaker header
CPU fan header
Chassis fan, primary, header
Diskette drive connector
Front panel audio header
Front panel USB header
Serial port, secondary, header
Serial port, primary connector
Serial port, primary header
SATA0 (controller 1, primary master) connector (dark blue)
SATA1 (controller 1, secondary master) connector (white)
SATA2 (controller 1, primary slave) connector (light blue)
SATA3 (controller 1, secondary slave) connector (orange)
SATA4 / eSATA (controller 2, primary master) connector (black)
Hood lock header
Hood sense header
Parallel port header
Media reader header
Ready boost / dash NIC header
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Table 7-7.
Notes
SFF & CMT only
CMT only
CMT only
SFF & CMT only
SFF & CMT only
SFF & CMT only
SFF & CMT only
SFF & CMT only
USDT only
SFF & CMT only
SFF & CMT only
SFF & CMT only
SFF & CMT only
SFF only
SFF & CMT only
SFF & CMT only
CMT only
SFF & CMT only
SFF & CMT only
SFF and CMT only
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