HP dc5100 - Microtower PC Service & Reference Manual page 219

System Board and Riser Card Reference
These reference designators are used on most, but not all, HP system and riser boards.
Designator
BAT
CR1
CR2
CR3
CR4
CR35
E14
E15
E25
E49/JP49
E50
J7
J9
J10
J11
J12
J20 - 29
J30
J31 - J35
J37
J38
J39
J40
J41
J50
J51
J52
J53
J54
J55
J65
J66
J67
J68
Service Reference Guide, dc5100
Component
Battery socket/Battery
LED - 5V_Aux(on)/PS_ON(off)
Health-LED
UID LED
Power LED
Hard drive activity LED
Boot block header/jumper
Boot block recovery header
CPLD programming header
Clear Password header/jumper
Clear CMOS header
RJ45 jack
Stacked RJ45/Dual USB
Quad stacked USB
First IEEE 1394 connector
Second IEEE 1394 connector
PCI slots
PCI extender slot (male)
PCI Express slots
Primary SCSI connector
Secondary SCSI connector
Stacked parallel/SCSI connector
AGP slot
x16 PCI Express slot for graphics
First parallel port
Second parallel port
Double-stacked parallel port, Top = Port B, Bottom = Port A
Parallel port over single Serial Port
Parallel port over Serial Port and Video Port
Parallel port over dual VGA ports
DVI connector
Keyboard connector, PS/2(Closest to power supply)
Mouse connector, PS/2
Double-stacked mouse/keyboard connector, PS/2
Top = Mouse, Bottom = Keyboard
376220-001
Designators
E
E–1