Расшифруйте вывод ipmitool sel list

Что-то сервер стал внезапно перезагружаться, вот вывод ipmitool sel list из Debian:

15f | 01/21/2013 | 18:36:46 | Power Unit #0x01 | Power off/down | Asserted

160 | 01/21/2013 | 18:36:46 | Power Unit #0x01 | Failure detected | Asserted

161 | 01/21/2013 | 18:36:50 | Power Unit #0x01 | Power off/down | Deasserted

162 | 01/21/2013 | 18:36:51 | Power Unit #0x01 | Failure detected | Deasserted

16b | 01/21/2013 | 18:37:06 | System Event #0x83 | Timestamp Clock Sync | Asserted

16c | 01/21/2013 | 18:37:04 | System Event #0x83 | Timestamp Clock Sync | Asserted

16d | 01/21/2013 | 18:37:30 | System Event #0x83 | OEM System boot event | Asserted

16e | 01/21/2013 | 18:37:41 | Critical Interrupt #0x05

ребут...

Первая часть похожа на нажатия кнопки на панели?