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May 19 08:33:56 BisecTechUnraid kernel: mce: [Hardware Error]: Machine check events logged
May 19 14:15:42 BisecTechUnraid crond[1958]: exit status 1 from user root /usr/local/sbin/mover &> /dev/null
May 19 15:48:19 BisecTechUnraid kernel: ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
May 19 15:48:19 BisecTechUnraid kernel: ata1.00: failed command: FLUSH CACHE EXT
May 19 15:48:19 BisecTechUnraid kernel: ata1.00: cmd ea/00:00:00:00:00/00:00:00:00:00/a0 tag 16
May 19 15:48:19 BisecTechUnraid kernel:         res 40/00:01:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
May 19 15:48:19 BisecTechUnraid kernel: ata1.00: status: { DRDY }
May 19 15:48:19 BisecTechUnraid kernel: ata1: hard resetting link
May 19 15:48:19 BisecTechUnraid kernel: ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
May 19 15:48:19 BisecTechUnraid kernel: ata1.00: configured for UDMA/133
May 19 15:48:19 BisecTechUnraid kernel: ata1.00: retrying FLUSH 0xea Emask 0x4
May 19 15:48:19 BisecTechUnraid kernel: ata1: EH complete
May 20 05:04:26 BisecTechUnraid kernel: ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
May 20 05:04:26 BisecTechUnraid kernel: ata1.00: failed command: FLUSH CACHE EXT
May 20 05:04:26 BisecTechUnraid kernel: ata1.00: cmd ea/00:00:00:00:00/00:00:00:00:00/a0 tag 30
May 20 05:04:26 BisecTechUnraid kernel:         res 40/00:ff:ff:00:00/00:00:00:00:00/40 Emask 0x4 (timeout)
May 20 05:04:26 BisecTechUnraid kernel: ata1.00: status: { DRDY }
May 20 05:04:26 BisecTechUnraid kernel: ata1: hard resetting link
May 20 05:04:26 BisecTechUnraid kernel: ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
May 20 05:04:26 BisecTechUnraid kernel: ata1.00: configured for UDMA/133
May 20 05:04:26 BisecTechUnraid kernel: ata1.00: retrying FLUSH 0xea Emask 0x4
May 20 05:04:26 BisecTechUnraid kernel: ata1: EH complete
May 20 06:09:26 BisecTechUnraid kernel: ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
May 20 06:09:26 BisecTechUnraid kernel: ata1.00: failed command: FLUSH CACHE EXT
May 20 06:09:26 BisecTechUnraid kernel: ata1.00: cmd ea/00:00:00:00:00/00:00:00:00:00/a0 tag 4
May 20 06:09:26 BisecTechUnraid kernel:         res 40/00:01:01:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout)
May 20 06:09:26 BisecTechUnraid kernel: ata1.00: status: { DRDY }
May 20 06:09:26 BisecTechUnraid kernel: ata1: hard resetting link
May 20 06:09:26 BisecTechUnraid kernel: ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
May 20 06:09:26 BisecTechUnraid kernel: ata1.00: configured for UDMA/133
May 20 06:09:26 BisecTechUnraid kernel: ata1.00: retrying FLUSH 0xea Emask 0x4
May 20 06:09:26 BisecTechUnraid kernel: ata1: EH complete
May 20 06:32:23 BisecTechUnraid kernel: ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
May 20 06:32:23 BisecTechUnraid kernel: ata1.00: failed command: FLUSH CACHE EXT
May 20 06:32:23 BisecTechUnraid kernel: ata1.00: cmd ea/00:00:00:00:00/00:00:00:00:00/a0 tag 2
May 20 06:32:23 BisecTechUnraid kernel:         res 40/00:01:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
May 20 06:32:23 BisecTechUnraid kernel: ata1.00: status: { DRDY }
May 20 06:32:23 BisecTechUnraid kernel: ata1: hard resetting link
May 20 06:32:23 BisecTechUnraid kernel: ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
May 20 06:32:23 BisecTechUnraid kernel: ata1.00: configured for UDMA/133
May 20 06:32:23 BisecTechUnraid kernel: ata1.00: retrying FLUSH 0xea Emask 0x4
May 20 06:32:23 BisecTechUnraid kernel: ata1: EH complete
May 20 06:45:31 BisecTechUnraid kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
May 20 06:45:31 BisecTechUnraid kernel: ata2.00: failed command: FLUSH CACHE EXT
May 20 06:45:31 BisecTechUnraid kernel: ata2.00: cmd ea/00:00:00:00:00/00:00:00:00:00/a0 tag 0
May 20 06:45:31 BisecTechUnraid kernel:         res 40/00:01:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
May 20 06:45:31 BisecTechUnraid kernel: ata2.00: status: { DRDY }
May 20 06:45:31 BisecTechUnraid kernel: ata2: hard resetting link
May 20 06:45:32 BisecTechUnraid kernel: ata2: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
May 20 06:45:32 BisecTechUnraid kernel: ata2.00: configured for UDMA/133
May 20 06:45:32 BisecTechUnraid kernel: ata2.00: retrying FLUSH 0xea Emask 0x4
May 20 06:45:32 BisecTechUnraid kernel: ata2: EH complete

i've changed my cache sata sable and port on the motherboard. 
disabled all the plugins. what is the issue here?

You would need to post yer diagnostics to put things into context