General Description 2-19Degradation FeatureThe degradation feature automatically isolates a failed DIMM, processor, or cooling fans to assurecontinuous operation of the server when the POST (Power On Self-Test, self-diagnosis programafter power on) detects such a DIMM, processor, or cooling fans.Failed DIMMs, processors, and cooling fan may be identified on the screen that the POST displays,or with the BIOS setup utility, "SETUP." They may also be identified on the system that has theNEC ESMPRO installed.Remote Power-On Feature (Wake On LAN/PME)The remote power-on function turns on the server through a network. It sends a special packet fromthe management computer to a remote server to turn it on if the server is off-powered.To enable this feature, you must select "Enabled" for "Wake On LAN/PME" in the AdvancedChipset Control of the Advanced menu of the BIOS setup utility, "SETUP." (See Chapter 4.)The remote power-on feature is not available in the following cases. Press the POWER/SLEEPswitch once to start the OS, and turn off the server in an appropriate procedure. Abnormal previous system shut-down No power supply to the server (due to turned-off breaker, disconnected power cord, powerblackout, etc.)NOTE: Wake On LAN feature is supported in100BASE-TX/1000BASE-T adapter on the base board and I/O riserboard.AC-LINK FeatureWhen the power cord of the server is connected to an uninterruptible power supply (UPS) unit, theserver supports the power linkage feature that enables control over the power supply from the UPSto the server. AC-LINK feature can be enabled or disabled with "AC-LINK" in the Server menu ofthe BIOS setup utility, "SETUP." (See Chapter 4.)