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System Board and Riser Board Reference Designators

These reference designators are used on most but not all HP system and riser boards.

DesignatorComponent

 

 

BAT

Battery socket/Battery

CR1

LED - 5V_Aux (on)

CR2

Health-LED

CR3

UID LED

CR4

Power LED

 

 

CR35

Hard drive activity LED

E14

Boot block header/jumper

E15

Boot block recovery header

E16

ROM recovery header

E25

CPLD programming header

E49/JP49

Clear Password header/jumper

 

 

E50

Clear CMOS header

J7

RJ45 jack

J9

Stacked RJ45/Dual USB

J10

Quad stacked USB

J11

First IEEE 1394 connector

 

 

J12

Second IEEE 1394 connector

J13

SPDIF input

J14

SPDIF output

J20 - 29

PCI slots

J30

PCI extender slot (male)

 

 

J31 - J35

PCI Express slots

J37

Primary SCSI connector

J38

Secondary SCSI connector

J39

Stacked parallel/SCSI connector

J40

AGP slot

 

 

J41

x16 PCI Express slot for graphics

J50

First parallel port

J51

Second parallel port

J52

Double-stacked parallel port, Top = Port B, Bottom = Port A

J53

Parallel port over single Serial Port

 

 

J54

Parallel port over Serial Port and Video Port

J55

Parallel port over dual VGA ports

J65

DVI connector

J66

Keyboard connector, PS/2 (Closest to power supply)

J67

Mouse connector, PS/2

 

 

 

Service Reference Guide, dc7700

433612-001

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