B Appendix B—System board
designators
This appendix lists the system board designators for this system.
Designator Silk screen Component
MTG1-MTG10 N/A Mounting holes
E15 E15 Crisis recovery header/jumper
E49 E49 Clear password header/jumper
J20 J20 SLOT1 PCI PCI-32 33-MHz slot
J21 J21 SLOT7 PCI-X 133 PCI-X 133-MHz slot
J31 J31 SLOT3 PCIe x8(4) PCIe Express slot
J32 J32 SLOT4 PCIe2 x16(16,8) 75W + 75W PCIe2 Express slot
J33 J33SLOT5 PCIe x8(1), PCIe2 x8 PCIe Express slot
J34 J34 SLOT6 PCIe x8(4) PCIe Express slot
J41 J41 SLOT2 PCIe2 x16 75W + 75W PCIe2 Express slot
J68 J68 Stacked keyboard/mouse connector
J9 J9 Stacked RJ-45 / dual USB
J10 J10 Single rear USB
J11 J11 Stacked RJ-45 / dual USB
J12 J12 1394 Single rear 1394
J13 J13 FRONT 1394 Front 1394 header
J83 J83 Triple stacked audio jacks
J85 J85 Slot2 PCIe x16 retention clip
J86 J86 Slot4 PCIe x16 retention clip
SW50 SW50 CMOS Clear CMOS switch/push button
P1 P1 Power supply connector (24-pin)
P2 P2 Memory power connector (6-pin)
P3 P3 Processor power connector (8-pin)
P5 P5 Power button / HDD LED / Power LED / Hood
switch / Temperature header
P8 P8 PCI FAN PCI fan header
P10 P10 FDD Diskette drive connector
ENWW 167