Server Power Features; Turning On The Computer - IBM IntelliStation M Pro 6225 Hardware Maintenance Manual And Troubleshooting Manual

USB connectors
Microphone connector (pink)
Line out connector (green)
System-error LED
Hard disk drive activity LED
Ethernet activity LED
Power-on LED
Power-control button
Ethernet link status LED

Server power features

When the computer is connected to an ac power source but is not turned on, the
operating system does not run, and all core logic is shut down; however, the
computer can respond to remote requests to turn on the computer. When the
computer is connected to an ac power source but is not turned on, the power-on
LED on the front of the computer is not lit and the ac power LED on the rear of the
computer is lit.
Notes:
1. Turn on all external devices, such as the monitor, before turning on the
2. The power-on LED on the front of the computer is lit when the computer is on

Turning on the computer

Approximately 20 seconds after the computer is connected to ac power, the
power-control button becomes active, and you can turn on the computer and start
the operating system by pressing the power-control button.
Use these connectors to connect USB devices to your computer, using
redundant Plug and Play technology.
Use this connector to connect a microphone to your computer when you
want to record voices or other sounds on the hard disk. You can also use
this connector (and a microphone) with speech-recognition software.
Use this connector to send audio signals from the computer to external
devices, such as speakers with built-in amplifiers, headphones, multimedia
keyboards, or the audio line-in jack on a stereo system.
When this LED is lit, it indicates that a system error has occurred. An LED
on the system board might also be lit to help isolate the error. If the system
board LED is not lit, check the error log.
When this LED is lit, it indicates that the hard disk drive is in use.
When this LED is lit, it indicates that there is activity between the computer
and the network. There are two of these LEDs, one on the front and one on
the rear of the computer.
When this LED is lit, it indicates that the computer is turned on.
Press this button to turn the computer on or off.
When this LED is flickering, it indicates that there is an active connection on
the Ethernet connector. This LED is on the rear of the computer.
computer.
and while it is being turned on.
5
Chapter 1. Introduction