Table 3. I/O-board jumpersJumpernumberJumpername Jumper settingJ31 Wake onLAN bypass v Pins 1 and 2: Normal operation (default).v Pins 2 and 3: Clears Wake on LAN bypass.J29 Passwordoverride v Pins 1 and 2: Normal operation (default).v Pins 2 and 3: Clears Password override.J22 Bootrecovery v Pins 1 and 2: Normal operation (default).v Pins 2 and 3: Enable the UEFI recovery mode.Note: If no jumper is present, the server responds as if the jumper is on pins 1 and 2.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 the safety information that begins on page vii, “Working inside the serverwith the power on” on page 34, and “Handling static-sensitive devices” on page35. This information will help you work safely.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 maximum levelsof performance. To download firmware updates for your server, complete thefollowing steps.Note: Changes are made periodically to the IBM Web site. The actual proceduremight vary slightly from what is described in this document.32 IBM System x3850 X5 and x3950 X5 Types 7145 and 7146: Installation and User’s Guide
