Fading on and off: The server is in a reduced-power state. To wake theserver, press the power-control button or use the IMM Web interface. See“Logging on to the web interface” on page 206 for information on logging onto the IMM Web interface.v Power-control button:Press this button to turn the server on and off manually orto wake the server from a reduced-power state.v Reset button: Press this button to reset the server and run the power-onself-test (POST). You might have to use a pen or the end of a straightened paperclip to press the button.v Hard disk drive activity LEDs: When this LED is flashing, it indicates that theassociated hard disk drive is in use.v Locator LED: Use this blue LED to visually locate the server among otherservers. This LED is also used as a presence detection button. You can use IBMSystems Director to light this LED remotely. This LED is controlled by the IMM.v System-error LED: When this amber LED is lit, it indicates that a system errorhas occurred.v USB connectors: Connect a USB device, such as a USB mouse, keyboard, orother device to any of these connectors.v Optional DVD eject button: Press this button to release a DVD or CD from theoptional DVD drive.v Optional DVD drive activity LED: When this LED is lit, it indicates that theoptional DVD drive is in use.v Hot-swap hard disk drive activity LEDs (some models): This LED is used onSAS or SATA hard disk drives. Each hot-swap hard disk drive has an activityLED, and when this LED is flashing, it indicates that the drive is in use.v Hot-swap hard disk drive status LEDs (some models): This LED is used onSAS or SATA hard disk drives. When this LED is lit, it indicates that the drive hasfailed. If an optional IBM ServeRAID controller is installed in the server, when thisLED is flashing slowly (one flash per second), it indicates that the drive is beingrebuilt. When the LED is flashing rapidly (three flashes per second), it indicatesthat the controller is identifying the drive.Rear viewThe following illustration shows the connectors and LEDs on the rear of the server.Note: The illustrations in this document might differ slightly from your hardware.Power-cordconnectorUSB 1-2 connectorUSB 3-4 connectorSerialconnectorVideoconnectorEthernet 1activity LEDEthernet 1link LEDEthernet 2activity LEDEthernet 2link LEDNMI buttonPCI slot 1 PCI slot 2AC Power LED(green)DC Power LED(green) Power supplyerror LED(amber)v Ethernet link LEDs: When these LEDs are lit, they indicate that there is anactive link connection on the 10BASE-T, 100BASE-TX, or 1000BASE-TXinterface for the Ethernet port.10 IBM System x3250 M3 Types 4251, 4252, and 4261: Problem Determination and Service Guide
