4 signal distribution – HP DC5850 User Manual
Page 82

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Technical Reference Guide
Power and Signal Distribution
7.4 Signal
Distribution
Table 7-6 lists key 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 7-6.
System Board Component Designations
Designator
Component function
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
Quad-stacked USB connectors
J20
PCI 2.3 connector
J31
PCIe x1 connector
J32
PCIe x1 connector
J41
PCIe x16 graphics connector
J68
Stacked keyboard, mouse PS/2 connectors
J69
Analog VGA monitor DB-15 connector
J70
Digital DVI-D connector
J78
Stacked audio line-in, headphone/line-out 1/8” jacks
J103
DC input
P1
Power supply connector
P3
Vccp (PWRCPU) header
P5
Control panel (power button, power LED) header
P6
Internal speaker header
P8
System fan header
P9
Chassis fan, primary, header
P10
Diskette drive connector
P23
Front panel audio header
P24
Front panel USB header
P52
Serial port, secondary, header
P53
Serial port, primary connector
P54
Serial port, primary header
P60
SATA0 (controller 1, primary master) connector (dark blue)
P61
SATA1 (controller 1, secondary master) connector (white)
P62
SATA2 (controller 1, primary slave) connector (light blue)
P63
SATA3 (controller 1, secondary slave) connector (orange)
P70
Primary CPU (heatsink) fan header
P126
Parallel port header
P150
Media reader USB header
SW50
Clear CMOS switch
XMM1, 2
Memory slots, channel A (white)
XMM3, 4
Memory slots, channel B (black)
XU1
Processor socket
XB2
Battery socket