IBM 88631SU Service Guide - Page 109
IBM 88631SU - System x3850 - 8863 Manual
UPC - 000435913135
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v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See Chapter 3, "Parts listing, Type 8863, 7362," on page 107 to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU). v If an action step is preceded by "(Trained service technician only)", that step must be performed only by a trained service technician. System-error log message Action CPU IERR detected, the system has been restarted Information only; if the message persists: 1. (Trained service technician only) Reseat the microprocessors. 2. Reseat the microprocessor VRMs, if present. 3. (Trained service technician only) Replace the microprocessor. CPU IERR, the CPU has been disabled Information only; if the message persists: 1. (Trained service technician only) Reseat the microprocessors. 2. Reseat the microprocessor VRMs, if present. 3. (Trained service technician only) Replace the microprocessor. CPU non-critical over temperature warning 1. Make sure that the fans have good airflow and are not obstructed. 2. (Trained service technician only) Reseat the microprocessor heat sink. CPU non-recoverable over temperature fault 1. Make sure that the fans have good airflow and are not obstructed. 2. (Trained service technician only) Reseat the microprocessor heat sink. CPU mismatch: CPU unsupported by VRM. CPU nn, where nn is the CPU number. Replace the 10.1 VRM with a 10.2 VRM. CPU removal detected Informational only; if the message persists: 1. (Trained service technician only) Reseat the microprocessors. 2. Reseat the microprocessor VRMs, if present. CPU X Over Temperature 1. Check all fans and remove any obstacles from the path of the airflow. 2. Make sure that the room temperature is within the recommended range. 3. Make sure that the microprocessor heat sinks are correctly seated. Ethernet Data Rate modified from to Information only by user Ethernet Duplex setting modified from Information only to by user Ethernet interface by user Information only Ethernet locally administered MAC address modified from x:x:x:x:x:x Information only Ethernet MTU setting modified from x to y by user Information only Fan X Failure (X of 1-8) 1. Make sure that nothing is blocking the fan. 2. Check the physical connection and make sure that the fan is correctly seated. 3. Replace fan X. Chapter 2. Diagnostics 93