System Board Locations2 3 64589101112131417 1518 16192021222324711 Rear serial port (#1) connector 2 Rear power and attention LED connector3 Processor power connector 4 Processor #2 card connector5 Processor #1 card connector 6 Power connector7 Power connector 8 Power connector9 Power connector 10 Light path card connector11 Processor fans 12 Blowers13 Diskette connector 14 Memory card connector15 Front serial port connector 16 Operator panel connector17 CD-ROM IDE connector 18 Internal SCSI connector19 - 20 32-bit PCI connectors(33MHz, 5V)21 64-bit PCI connector(33MHz, 5V)22 - 23 64-bit PCI connector(50MHz, 3.3V)24 Battery connector8 Service Guide