Asus RS100-E9-P12 - Page 68

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Chapter 4: Motherboard Information
3. CATT ERR LED (CATTERR1)
TheCATTERRLEDindicatesthatthesystemhasexperiencedafatalorcatastrophic
error and cannot continue to operate.
4. Hard disk LED (HDLED2)
TheHarddiskLEDlightsuporasheswhendataisreadfromorwrittentotheHDD.
5. Message LED (MELED1)
TheMessageLEDisanonboardLEDthatlightsuptoindicateanabnormalevent
occurrence.