IBM 8685 Hardware Maintenance Manual - Page 59
System-board LED locations, Important
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System-board LED locations The following illustration shows the location of the LEDs on the system board. You might need to refer to this illustration when solving problems with the server. PCI-X slot 5 attention (CR17) PCI-X slot 5 power (CR22) PCI-X slot 6 attention (CR18) PCI-X slot 6 power (CR23) PCI-X slot 7 attention (CR25) PCI-X slot 7 power (CR24) PCI-X slot 4 attention (CR16) PCI-X slot 4 power (CR21) PCI-X slot 3 attention (CR15) PCI-X slot 3 power (CR20) PCI-X slot 2 attention (CR14) PCI-X slot 2 power (CR19) Memory board VRM (CR46) VRM 4 (CR39) Microprocessor 4 (CR30) Microprocessor 1 (CR43) VRM 1 (CR31) SCSI channel A in LVD mode (CR32) Light Path Diagnostics panel (CR44) System board VRM (CR45) VRM 3 (CR37) Microprocessor 3 (CR38) Microprocessor 2 (CR42) VRM 2 (CR34) ISMP activity (CR13) SCSI channel B in LVD mode (CR33) Important: The amber CR44 LED also illuminates if the cable interface from the system board to the Light Path Diagnostics panel is missing or incorrectly connected. Therefore, verify that the required cable is present and correctly connected before you replace the Light Path Diagnostics panel. Chapter 4. Customer replaceable units 49
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