IBM 8649 Hardware Maintenance Manual - Page 102
System-board, external, connectors, error
UPC - 000435133427
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System-board external connectors The following illustration shows the external input/output port connectors on the system board. Mouse Keyboard USB 1/ USB 2 Parallel (LPT1) Serial A/ Serial B (COMA/ COMB) Ethernet Audio Front panel USB (JUSB3) System-board error LEDs The following illustration shows the LEDs on the system board. You might need to refer to this illustration when solving problems with the server. Rear fan 1 (SYSFAN1) Main power (POWER1) Power (POWER2) Rear fan 2 (SYSFAN2) CD audio (JCD1) Diskette drive (FDD1) Secondary IDE (IDE2) Primary IDE (IDE1) Error LED (JER2) Cover switch (JCI2) 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) 92 IBM xSeries 225 Types 8649: Hardware Maintenance Manual and Troubleshooting Guide