Designator Silkscreen Component
P3 PWRCPU Processor 12-V header
P10 FDD Diskette driver connector
N/A N/A Security boot connector
N/A N/A CD analog audio connector
P11 AUX Auxiliary audio connector
P20 PRIMARY IDE Primary IDE connector
N/A N/A Secondary IDE connector
J12 FRNT 1394 Front panel 1394a header
J34 FRNT AUD Front panel audio header
P24 FRNT USB Front panel USB header
P25 INT USB Internal USB header
N/A N/A Multi-Bay Header
P29 HDD LED HDD LED connector
J33 CONTROL PANEL Main power/HDD LED/internal speaker
connector
P70 CPUFAN1 Primary CPU fan header
P71 CPU2FAN Secondary CPU fan header
P8 CHFAN Primary chassis fan header
P92 MEMFAN Memory fan header
P9 PCIFAN1 PCI fan header
P93 FRNTFAN Front chassis fan header
BAT1 BAT Battery retainer
XMM1 DIMM1 Memory slot
XMM2 DIMM2 Memory slot
XMM3 DIMM3 Memory slot
XMM4 DIMM4 Memory slot
XMM5 DIMM5 Memory slot
XMM6 DIMM6 Memory slot
XMM7 DIMM7 Memory slot
XMM8 DIMM8 Memory slot
U1 XU1 Primary processor socket
U2 XU2 Secondary processor socket
U23 ROM ROM socket
E15 RECOVER Crisis recovery header/jumper
164 Appendix E Appendix E — System board designators ENWW