HP FL939UT User Manual Page 237

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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 225
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