Периодически выключается и включается винт

Aug  4 14:19:16 ubuntu-box kernel: [ 4919.007764] ata5.00: exception Emask 0x10 SAct 0x0 SErr 0x1810000 action 0xe frozen
Aug  4 14:19:16 ubuntu-box kernel: [ 4919.007771] ata5: SError: { PHYRdyChg LinkSeq TrStaTrns }
Aug  4 14:19:16 ubuntu-box kernel: [ 4919.007774] ata5.00: failed command: FLUSH CACHE EXT
Aug  4 14:19:16 ubuntu-box kernel: [ 4919.007781] ata5.00: cmd ea/00:00:00:00:00/00:00:00:00:00/a0 tag 0
Aug  4 14:19:16 ubuntu-box kernel: [ 4919.007783]          res d0/00:00:26:f7:ec/00:00:00:00:00/a0 Emask 0x12 (ATA bus error)
Aug  4 14:19:16 ubuntu-box kernel: [ 4919.007785] ata5.00: status: { Busy }
Aug  4 14:19:16 ubuntu-box kernel: [ 4919.007791] ata5: hard resetting link
Aug  4 14:19:16 ubuntu-box kernel: [ 4919.007793] ata5: nv: skipping hardreset on occupied port
Aug  4 14:19:22 ubuntu-box kernel: [ 4925.268043] ata5: link is slow to respond, please be patient (ready=0)
Aug  4 14:19:23 ubuntu-box kernel: [ 4926.668041] ata5: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
Aug  4 14:19:23 ubuntu-box kernel: [ 4926.684247] ata5.00: configured for UDMA/133
Aug  4 14:19:23 ubuntu-box kernel: [ 4926.684260] ata5: EH complete