IBM INTELLISTATION E PRO 6204 User Manual page 25

Diskette drive activity light: indicates when the diskette drive is in use.
Diskette drive eject button: releases a diskette from the drive.
Ethernet speed 100 Mbps: when this light is on, the Ethernet speed is 100 Mbps.
When this light is off, the Ethernet speed is 10 Mbps.
Ethernet transmit/receive activity: when this light is on, there is activity between
the computer and the network.
Power-control button: enables you to turn the computer on or off manually.
Power-on light: indicates when your computer is turned on.
Hard disk drive activity light: indicates when the hard disk drive is in use.
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Chapter 1. Introducing the IntelliStation E Pro