B
System board designators
This appendix describes the system board designators for this workstation.
Designator
Silk screen
Component
MH1-MH7
N/A
Mounting holes
E15
E15
Crisis recovery header/jumper
E49
E49
Clear password header/jumper
J9
J9 RJ45/USB
Rear stacked RJ-45/dual USB
J11
J11 RJ45/USB
Rear stacked RJ-45/dual USB
J12
J12 1394/USB
Single rear 1394a/dual USB
J13
J13 1394
Front 1394a header
J20
J20 SLOT6-PCI32
PCI - 32/33 MHz slot
J29
J29
Slot2 PCIe x16 retention clip
J30
J30
Slot5 PCIe x16 retention clip
J31
J31 SLOT1-PCIe2 x8(4)
PCIe2 x8(4) slot
J32
J32 SLOT3 -PCIe x8(4)
PCIe x8(4) slot
J33
J33 SLOT4-PCIe2 x16(8)
PCIe2 x16(8) slot
J34
J34 SLOT7-PCIe2 x16(8)
PCIe2 x16(8) slot
J41
J41 SLOT2-PCIe2 x16 75W
PCIe2 x16 75W (from system board) slot
J42
J42 SLOT5-PCIe2 x16 75W
PCIe2 x16 75W (from system board) slot
J68
J68
Stacked keyboard/mouse connector
J83
J83 AUD
Triple stacked audio jacks
SW50
SW50 CMOS
Clear CMOS switch/push button
P1
P1 PWR MAIN
Power supply connector (18-pin)
P2
P2 PWR MEM
Memory power connector (10-pin)
P3
P3 PWRCPU
CPU power connector (8-pin)
P5
P5 PB/LED
Power button/HDD LED/Power LED switch/
Side access panel switch/Temperature header
P8
P8 REAR FANS
Rear fans header
P10
P10 FDD
Flexible disk drive
P24
P24 FRNT USB
Front panel USB header
P26
P26 IUSB2
Internal dual USB header
P27
P27 IUSB1
Internal single USB header
ENWW
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