Tyan Computer B5161 manual Replacing Motherboard Components, Disconnecting All Motherboard Cables

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3.4Replacing Motherboard Components

Follow these instructions to replace motherboard compo- nents, including the motherboard.

3.4.1Disconnecting All Motherboard Cables

Before replacing the motherboard or certain components, remove cables connected to the motherboard. Follow these instructions to remove all motherboard cabling.

1. Disconnect ATX power cables

Main Power		EPS 12V Power

2.Disconnect the Fan, Front Panel, SATA and USB cables. Refer to the mainboard layout on p.13 for the locations.

3. Disconnect the PWM cable .

Chapter 3: Replacing Pre-Installed Components

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Contents Transport GT20 B5161 Service Engineer’s Manual Page Preface Federal Communications Commission FCC About this Manual Safety Information Table of Contents Technical Support About the Transport GT20 B5161 OverviewEnclosure FeaturesRegulatory Opening the Box UnpackingComponent Description Box ContentsAccessories FDD Kit About the Product Front ViewRear View Front Panel LED DefinitionRJ45 NIC2 Mode Amber Gigabit mode Right Side Green 100M mode Internal View 1110 Motherboard Block Diagram Motherboard Layout CPUJumper Function Connector Jumpers & ConnectorsBefore You Begin Work AreaTools Precautions Installing the Server in a Rack Rack MountingRack mounting kit Installing Outer Rails to the Rack Installing the Inner Rails to ChassisLocate the front and rear brackets Remember to add washer Front Side Rear Side Rackmounting the Server Setting Up Removing the Chassis Cover Installing Motherboard ComponentsInstalling the CPU, Heatsink and Air Duct Setting Up Setting Up Installing the Memory Installing the PCI Card Installing the Hard Drive Setting Up Installing the Slim FDD Option Connect the other side to the connector on motherboard Introduction Replacing Pre-Installed ComponentsPrecautions Following flowchart outlines the disassembly procedure Disassembly FlowchartRemoving the Cover Disconnecting All Motherboard Cables Main Power EPS 12V PowerReplacing Motherboard Components Removing the Motherboard Replacing the LED Control Board Replacing Pre-Installed Components Replacing the M1012 Adapter Board 2x power cables on Sata backplane 1x power cable on M1012 J3 LAN/ID LED 1 M1012 Adapter Board Features2 M1012 Adapter Board Connector Pin Definition FAN Signal Related Connector Pin Definition GND FAN1TACH FAN2TACH FAN3TACH KEY PIN FAN312VPWM FAN3TACH GND FAN4TACH FAN412VPWM FAN912VPWM FAN9TACH GND FAN10TACH System Fan Layout System Fan Monitoring SignalReplacing the Sata Backplane ATA Backplane M1204 Features Replacing Pre-Installed Components Replacing the Cooling Fan Replacing the Power Supply Difference 1 Main Menu/Legacy Diskette a Appendix I Bios DifferencesB5161 DisabledB6161 Difference 2 Advanced/Hardware Monitor S5161B5161 Appendix II Cable Connection Tables Power Supply Cable CD-ROM Related Cable Appendix III Installing Smdc Cards Installing M3289 into HDD Tray Page Installing M3290/M3291 into HDD tray Installing M3290/M3291 into GT24 Chassis Page Help Resources Technical SupportReturning Merchandise for Service