IBM 8649 Hardware Maintenance Manual - Page 101
System-board, option, connectors, internal
UPC - 000435133427
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System-board option connectors The following illustration shows the system-board connectors for user-installable options. Microprocessor 1 (CPU1) Microprocessor 2 (CPU2) DIMM 1 DIMM 2 DIMM 3 DIMM 4 AGP Pro slot PCI slot 1 (PCI1) PCI-X slot 2 (PCI2) PCI-X slot 3 (PCI3) PCI-X slot 4 (PCI4) PCI-X slot 5 (PCI5) Battery Video adapter Mini-PCI type III slot 6 (PCI6) Remote Supervisor Adapter II (JMGT1) System-board internal connectors The following illustration shows the internal connectors on the system board. Rear fan 1 (SYSFAN1) Main power (POWER1) Power (POWER2) Diskette drive (FDD1) Secondary IDE (IDE2) Primary IDE (IDE1) Rear fan 2 (SYSFAN2) Error LED (JER2) Cover switch (JCI2) CD audio (JCD1) Front panel switch/LEDs (JFP1) SCSI channel A (SCSI1) PCI fan (SYSFAN5) Center fan (SYSFAN4) - some models Wake-on-LAN (JWL) SCSI channel B (SCSI2) SCSI LED (J18) Chapter 5. Field replaceable units 91