IBM 88410EU User Manual - Page 148
Temperature, related, system, shutdown, checkout
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Note: See "System replaceable units" on page 144 to determine which components should be replaced by a field service technician. Message Action System shutoff due to x V under voltage 1. Check the power-supply connectors (level-critical; system shutoff due to x supply under voltage) 2. Power supply. 3. Power cage assembly, if installed. System shutoff due to VRM x over voltage v Replace VRM x. System shutoff due to excessive (< 240 1. See "Power checkout" on page 100. VA) loading 2. Cycle ac on/off. Temperature related system shutdown Note: See "System replaceable units" on page 144 to determine which components should be replaced by a field service technician. Message Action System shutoff due to board over temperature (level-critical; board is over temperature) 1. Ensure that the system is being properly cooled; see "System reliability guidelines" on page 11. 2. Replace board. System shutoff due to CPU x over temperature (level-critical; CPU x is over temperature) 1. Ensure that the system is being properly cooled; see "System reliability guidelines" on page 11 2. Replace CPU x. System shutoff due to CPU x under temperature (level-critical; CPU x is under temperature) v Ambient temperature must be within normal operating specifications; see "Features and specifications" on page 3. System shutoff due to DASD temperature (sensor x) (level-critical; DASD area reported temperature outside recommended operating range) v Ensure that the system is being properly cooled; see "System reliability guidelines" on page 11 System shutoff due to high ambient temperature (level-critical; high ambient temperature) v Ambient temperature must be within normal operating specifications; see "Features and specifications" on page 3. System shutoff due to system board under temperature (level-critical; system board is under temperature) v Ambient temperature must be within normal operating specifications; see "Features and specifications" on page 3. DASD checkout Note: See "System replaceable units" on page 144 to determine which components should be replaced by a field service technician. Message Action Hard drive x removal detected (level-critical; hard drive x has been removed) v Information only, take action as appropriate. 138 xSeries 236 Type 8841: Hardware Maintenance Manual and Troubleshooting Guide