I/O-board LEDsThe following illustration shows the LEDs on the I/O board.Slot 7errorLEDI/OboarderrorLEDSlot 6errorLEDSlot 5errorLEDSlot 4errorLEDSlot 3errorLEDSlot 2errorLEDSlot 1errorLEDPower fault LEDInstallation guidelinesBefore you install optional devices, read the following information:v Read “Safety” on page v, “Working inside the server with the power on” onpage 40, and “Handling static-sensitive devices” on page 40. This informationwill help you work safely.v Make sure that the devices that you are installing are supported. For a list ofsupported optional devices for the server, see http://www.ibm.com/systems/info/x86servers/serverproven/compat/us/.v When you install your new server, take the opportunity to download and applythe most recent firmware updates. This step will help to ensure that any knownissues are addressed and that your server is ready to function at maximumlevels of performance. To download firmware updates for your server, go tohttp://www.ibm.com/supportportal/.Note: Some cluster solutions require specific code levels or coordinated codeupdates. If the device is part of a cluster solution, verify that the latest level ofcode is supported for the cluster solution before you update the code.For additional information about tools for updating, managing, and deployingfirmware, see the ToolsCenter for System x and BladeCenter athttp://publib.boulder.imm.com/infocenter/toolstr/v1r0/index.jsp.In a two-node configuration, make sure that the UEFI firmware, FPGA, andIMM code are at the same levels on all nodes.v Before you install optional hardware devices, make sure that the server isworking correctly. Start the server, and make sure that the operating system38 IBM System x3850 X5 and x3950 X5 Types 7145, 7146, 7143, and 7191: Installation and User's Guide
