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7-10 www.hp.com Technical Reference Guide
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.
Table 7-7.
System Board Component Designations
Designator Component function
Notes
CR1 +5 VDC LED
E1 Descriptor table override header
E14 SPI ROM boot block header
E49 / JP49 Password clear header / jumper
J9 Stacked RJ-45 & dual USB connectors
J10 Stacked quad USB connectors
J20 PCI 2.3 connector SFF & CMT only
J21 PCI 2.3 connector CMT only
J22 PCI 2.3 connector CMT only
J31 PCIe x1 connector SFF & CMT only
J32 PCIe x1 connector SFF & CMT only
J41 PCIe x16 graphics connector SFF & CMT only
J42 PCIe x4 graphics (x16) connector SFF & CMT only
J50 Parallel port SFF & CMT only
J68 Stacked keyboard, mouse PS/2 connectors
J69 VGA monitor DB-15 connector
J78 Stacked audio line-in, headphone/line-out 1/8” jacks
J103 DC input USDT only
P1 Power supply connector SFF & CMT only
P3 Vccp (PWRCPU) header
P5 Control panel (power button, power LED) header
P6 Internal speaker header
P8 CPU fan header
P9 Chassis fan, primary, header
P10 Diskette drive connector SFF & CMT only
P23 Front panel audio header
P24 Front panel USB header
P52 Serial port, secondary, header SFF & CMT only
P53 Serial port, primary connector SFF & CMT only
P54 Serial port, primary header SFF only
P60 SATA0 (controller 1, primary master) connector (dark blue)
P61 SATA1 (controller 1, secondary master) connector (white) SFF & CMT only
P62 SATA2 (controller 1, primary slave) connector (light blue) SFF & CMT only
P63 SATA3 (controller 1, secondary slave) connector (orange) CMT only
P64 SATA4 / eSATA (controller 2, primary master) connector (black) SFF & CMT only
P124 Hood lock header SFF & CMT only
P125 Hood sense header
P126 Parallel port header SFF and CMT only
P150 Media reader header
P151 Ready boost / dash NIC header