SUPER MICRO Computer sc827 user manual System Fans, Optional Fan Configurations

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Chapter 5: Chassis Setup and Maintenance

5-9 System Fans

Four fans provide cooling for the chassis. These fans circulate air through the chas- sis as a means of lowering the chassis internal temperature. The SC827 system fans are easy to change modules. There is no need to uninstall any other parts inside the system when replacing fans, and no tools are required for installation.

Optional Fan Configurations

The SC827H model chassis is designed so that the default configuration of the system is for each motherboard to control two fans. Each motherboard node in the chassis is connected to the backplane through the adapter card, mounted in the motherboard node drawer. In the event that one of the motherboard drawers is removed, then the remaining motherboard will operate both fans.

The SC827T model chassis has a default configuration with one fan wired directly to each motherboard. In the event that one of the motherboard drawers is removed, then the fan associated with that motherboard will not function until the drawer is replaced. If multiple controls are desired in the SC827T, an optional cable must be purchased separately to connect from the backplane to each motherboard node.

Fan Configurations Options

SC827T Default Configuration

Fan A wired directly to Node A

Fan B wired directly to Node B

Fan C wired directly to Node C

Fan D wired directly to Node D

SC827T Optional Hot-Swappable Configuration (Requires optional cable)

Fans A and B connected to backplane, backplane cabled to Nodes A and B Fans A and B connected to backplane, backplane cabled to Nodes A and B

SC827H Hot-Swappable Default Configuration

Fans A and B connected to backplane,

backplane connected to Node A and B by adapter card

Fans C and D connected to backplane,

backplane connected to Nodes A and B by adapter card

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Contents Super SC827 Chassis Manual About This Manual PrefaceIntroduction Manual OrganizationCompatible Backplanes Table of Contents Rack Installation Viii Overview Chapter IntroductionShipping List Part NumbersContacting Supermicro Returning Merchandise for Service SC827 Chassis Manual Electrical Safety Precautions Chapter System SafetyPreparing for Setup Page System Safety Page Components Chapter Chassis ComponentsPower Supply Where to get Replacement ComponentsChassis Control Panel Chapter System InterfaceControl Panel LEDs Control Panel ButtonsSAS/SATA Drives Drive Carrier LEDsSC827 Chassis Manual Chapter Chassis Setup and Maintenance Removing the Chassis Cover and Protective Film Chassis CoverRemove two Screws Check Ventilation Openings Motherboard Drawer Locations in the Chassis Installing and Removing Hard DrivesRemoving Hard Drive Trays from the Chassis Removing a Hard Drive TrayDummy Drive Drive Tray Installing a Drive into the Hard Drive TrayRemoving Hard Drive SAS or Sata Hard Drive Drive TrayRemoving the Backplane from the Chassis Removing and Installing the BackplaneRemoving the Backplane Loosening the Spring Bar Screws in the Floor of the Chassis Installing the Backplane into the Chassis Installing the BackplaneShields Installing the MotherboardCompatible Motherboards Permanent and Optional Standoffs Chassis Setup and Maintenance Page Installing the Adapter Card Installing and Replacing Adapter CardsAdapter Card Motherboard Drawer Spacer Plate Five Screws Removing the Adapter CardAdd-on Card Slot Clip PCI Slot Shield Add-on Card/Expansion Slot SetupInstalling the Riser Card Installing the Riser CardRiser Card Installing Add-on CardsAdd-on Card Air Shrouds Installing the Air ShroudsInstalling an Air Shroud Checking Airflow Installation CompleteChecking the Airflow System Fans Optional Fan ConfigurationsChanging a System Fan 18 System Fan PlacementRelease Tab Power SupplyPower Supply Replacement Changing the Power Supply Unpacking the System Chapter Rack InstallationChoosing a Setup Location General Server Precautions Rack PrecautionsRack Mounting Considerations Identifying the Sections of the Rack Rails Rack Mounting InstructionsReleasing Inner Rail from the Outer Rails Locking TabsReleasing the Inner Rail Inner Rails Installing The Inner Rails on the ChassisInstalling the Inner Rails Installing the Outer Rails Installing the Outer Rails on the RackBall-Bearing Shuttle Standard Chassis InstallationInstalling the Chassis into a Rack Optional Quick Installation Method SC827 Chassis Manual Overview Compatibility and Optional Accessories List Appendix a Cables, Screws Other AccessoriesDVD-ROM, CD-ROM, and Floppy Drive Chassis ScrewsAppendix B SC827 Power Supply Specifications SC827 Chassis Manual General Safety Guidelines Appendix C SAS-827T Safety GuidelinesESD Safety Guidelines Introduction to the SAS-827T Backplane An Important Note to UsersFront Connectors Connector, Jumper and Pin DefinitionsFront Connectors and Jumpers Motherboard Power Connectors Front Connector and Pin DefinitionsMB Power Connections Connector Motherboard SAS PortsFan Connector Y-Cable Optional feature, sold separately Chassis Fan ConnectorsSystem Fans FAN4 FAN3 SAS-827T BackplaneUpgrade Connector Backplane Main Power ConnectorsManufacturers Test Connectors 14. 15. Backplane to Front Panel HeadersFigure C-7 Motherboard Locations In the Chassis 22. 33. SAS PortsExplanation of Jumpers Front Jumper Locations and Pin DefinitionsD11 Front LED IndicatorsState Specification Rear Connectors and LED Indicators Appendix D SAS-827B Backplane Specifications Introduction to the SAS-827B Backplane Jumpers and Pin Definitions Front ConnectorsMotherboard to Backplane Connec- tors SAS-827B Backplane13. 14. Backplane to Front Panel Headers Means the jumper is on and Open means To modify the operation of the backplaneState LED IndicatorsJ11 D18 D24 D27 D14D13 Figure D-6 Motherboard Locations In the Chassis