Tyan Computer B2891 manual System Fan Layout

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3.7.2System Fan Layout

The following picture provides the information for system fan layout. Refer to the tables on p.xx for connection.

50	Chapter 3: Replacing Pre-Installed Components

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Contents Transport GT24 B2891 Service Engineer’s Manual Page Preface Federal Communications Commission FCC Conventions Safety Information Table of Contents Technical Support Overview About the Transport GT24 B2891Model HDD Bays Hot-Swap Product ModelsB2891G24S4H B2891G24U4H B2891G24S4-LC Support BackplaneFeatures Power Supply Environment TemperatureServer Management Regulatory Unpacking FDD KitRail Kit System Front View About the ProductSystem Rear View LED Definition Front Panel Rear I/O LEDNo AC power System Internal View B2891G24S4H B2891G24S4-LC B2891G24U4H Motherboard Layout CPU1CPU0Jumpers & Connectors Function Motherboard Block Diagram Memo Work Area Before You BeginTools Precautions Rack Mounting Installing the Server in a RackRack mounting kit Screw the sliding brackets to the sliding rails Mounting Bracket Setting Up Installing Motherboard Components Removing the Chassis CoverInstalling the CPU, Heatsink and Air Duct Setting Up Setting Up Installing the Memory Installing a PCI Card Setting Up Installing the Hard Drive for B2891G24S4H/U4H Setting Up Installing the Hard Drive for B2891G24S4-LC Setting Up Installing the Slim FDD Option Connect the other side to the connector on motherboard Memo Replacing Pre-Installed Components IntroductionPrecautions Disassembly Flowchart Following flowchart outlines the disassembly procedureRemoving the Cover Main Power EPS 12V Power Disconnecting All Motherboard CablesReplacing Motherboard Components Disconnect all fan power cables Removing the Motherboard Power Cable Data Cable Replacing the Slim CD-ROMReplacing Pre-Installed Components Replacing the LED Control Board Replacing Pre-Installed Components Replacing the M1010 Adapter Board 1 M1010 Adapter Board Features System Fan Layout System Fan Speed Control Signal System Fan Monitoring Signal3 M1010 Adapter Board Connector Pin Definition FAN Signal Related Connector Pin Definition FAN112VPWM FAN1TACH GND FAN2TACH FAN212VPWM FAN512VPWM FAN5TACH GND FAN6TACH FAN612VPWM LCM+5V Lcmsin KEY PIN GND LCM+5VSB Lcmsout Replacing the Sata or Scsi Backplane Replacing Pre-Installed Components ATA Backplane M1204 Features Replacing Pre-Installed Components M1204 HDD Access LED Connector Pin Definition Scsi Backplane M1205 Features Replacing Pre-Installed Components Motor Spin Func M1205 HDD Start-Mode & ID Selection SwitchCase TionID Sequence Left to right in front viewReplacing the Power Supply S2891 Mainboard BIOS/Advanced Menu Boot MenuB2891 Barebone Bios / Advanced Menu Table of Differences B2891 S2891Appendix II Cable Connection Tables Power Supply Cable Other Cable Technical Support Help ResourcesReturning Merchandise for Service