Compaq ML350 manual Preparation Procedures, Non-Hot-Pluggable Device, Powering Down the Server

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Removal and Replacement Procedures

Preparation Procedures

WARNING: Only authorized technicians trained by Compaq should attempt to repair this equipment. Because of the complexity of the individual boards and subassemblies, no one should attempt to make repairs at the component level or to make modifications to any printed wiring board. Improper repairs can create a safety hazard.

CAUTION: Electrostatic discharge (ESD) can damage electronic components. Be sure that you are properly grounded (earthed) before beginning any installation procedure. Refer to “Electrostatic Discharge Information” earlier in this chapter for more information.

Before removing any serviceable parts, determine whether the part is hot-pluggable or non-hot-pluggable.

Non-Hot-Pluggable Device

If the device is non-hot-pluggable, the server must be powered down. Non-hot-pluggable devices in the server include the processor, all boards, memory modules, fans, PCI option cards, and drive cages.

Powering Down the Server

The server does not completely power down when the front panel power button is pressed. The button toggles between On and Standby. The standby position removes power from most electronics and the drives, but some internal circuitry remains active. To completely remove all power from the system, disconnect all power cords from the server.

WARNING: To reduce the risk of injury from electric shock, disconnect all power cords to completely remove power from the system.

WARNING: To reduce the risk of personal injury from hot surfaces, allow the internal system components to cool before touching them.

CAUTION: Protect the server from power fluctuations and temporary interruptions with a regulating uninterruptible power supply (UPS). This device protects the hardware from damage caused by power surges and voltage spikes, and keeps the system in operation during a power failure.

CAUTION: The server must always be operated with system unit covers on. Proper cooling is not achieved when the system unit covers are removed.

2-4	Compaq ProLiant ML350 Generation 3 Server Maintenance and Service Guide

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Contents Maintenance and Service Guide Compaq ProLiant ML350 Generation 3 ServerPage Contents Chapter Diagnostic Tools Symbols in Text Important Safety InformationAbout This Guide Compaq Technician Notes Where to Go for Additional Help Integrated Management LogTelephone Numbers Text Conventions Illustrated Parts Catalog Mechanical Parts Exploded View Mechanical parts exploded viewMechanical Spare Parts List Mechanical Spare Parts ListDescription Spare Part Number Chassis System Components Exploded View System components exploded viewSystem Components Spare Parts List System Components Spare Parts List Description Spare Part Number MiscellaneousRemoval and Replacement Procedures Electrostatic Discharge Information Symbols on Equipment Preparation Procedures Powering Down the ServerNon-Hot-Pluggable Device Rack Stability Warning Bezel Door Tower Model Only To replace the bezel door, reverse steps 3Access Panel To replace the access panel, reverse steps 2 throughBezel Rack Model Only Loosening the access panel thumbscrews Pull the bezel up and away from the chassis To replace the bezel, reverse steps 2 throughRemovable Media Device Blank To replace the media device blank, reverse steps 2 throughCable Routing Diagrams Diskette Drive Signal CableIDE CD-ROM Drive Signal Cable Removable Media Device CableItem Description Scsi Point-to-Point Cable 11 Scsi LVD Point-to-Point cable routingAir Baffle To replace the air baffle, reverse steps 2 through13 Disconnecting the fan cables from the system board System Fan Modules14 Removing the system CPU fan module 15 Removing the system I/O fan module Drive Bay Configuration DescriptionHot-Plug Hard Drive Blank To replace a hot-plug hard drive blank, reverse steps 1Hot-Plug Hard Drive 18 Removing a hot-plug hard drive19 Disconnecting cables from the hot-plug hard drive cage Hot-Plug Hard Drive Cage20 Removing a hot-plug hard drive cage 21 Disconnecting the removable media device cables Removable Media Device22 Removing the removable media device Expansion Slots Slot Slot NumberExpansion Board 24 Removing the expansion board retainerTo replace an expansion board, reverse steps 2 through 25 Removing the expansion boardMemory Module Guidelines 26 DDR Sdram Dimm sockets locationMemory Modules To replace a memory module, reverse steps 2 throughProcessors and Processor Power Modules Processor 29 Releasing the processor-cage latchRotate the processor cage upward Rotate the processor-locking lever to release the processorRemove the processor/heatsink assembly from the socket To replace the processor, reverse steps 2 throughProcessor Power Module To replace a PPM, reverse steps 2 throughSystem Board To replace the system board, reverse steps 2 throughSystem Battery System Board Battery35 Locating and removing a system board battery Power Supply To remove the power supplyTo replace the power supply, reverse steps 1 through Power Supply Backplane Board 37 Removing the power supply backplane boardFeet Tower Model Only To replace the feet, reverse steps 2 throughDiagnostic Tools Diagnostic ToolsDiagnostic Tools Utility Overview Tool Description How to run itDiagnostic Tools Diagnostic Tools For More Information InspectConnectors, Switches, and LEDs Connectors and Components Rear Panel ComponentsSystem Board Components System board components System Board ComponentsSwitches System Configuration Switch SettingsSystem ID Switch Settings Default Position Function Description SettingsPosition Default Function/Description Resetting System Configuration Settings LEDs External health Internal health UIDDescription Status UID LEDNIC LED System Board LEDs System board LEDs System Board LEDsSystem Board LEDs Hot-Plug Hard Drive LEDs Hot-plug hard drive LEDsDo not remove the drive. Removing a Activity Online Fault MeaningHot-Plug Scsi Hard Drive LED Combinations Drive during this process causes dataDetails, provided that the array is Network Interface Controller LEDs Description Status ConditionPhysical and Operating Specifications System Unit Specifications System UnitRack Server System Unit Specifications Feature International Units English UnitsRack Server System Unit Memory Memory Specifications1.44-M Diskette Drive Specifications MB Diskette DriveIDE CD-ROM Drive Specifications IDE CD-ROM DriveWide Ultra3 Scsi Hot-Plug Hard Drives Integrated Compaq NC7760 Gigabit Server Auto-switching NICWide Ultra3 Scsi Hard Drive Specifications GB DriveIntegrated Dual Channel Wide Ultra3 Scsi Adapter Remote Insight Lights-Out Edition II Option Board Index Index-2 PPM See Rbsu Index-5 Index-6

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