After years of minimal issues, it looked like a drive was failing so I replaced it. Now, I can't seem to keep anything up and running. Tried new drives, swapping cables, everything. Do I need a new power supply? A new mobo? Is it a SATA controller? This is my log, and it repeats this way every 6 seconds forever:

 

Jan 5 18:53:19 tower kernel: ata2.00: exception Emask 0x50 SAct 0x0 SErr 0x4890800 action 0xe frozen
Jan 5 18:53:19 tower kernel: ata2.00: irq_stat 0x0c400040, interface fatal error, connection status changed
Jan 5 18:53:19 tower kernel: ata2: SError: { HostInt PHYRdyChg 10B8B LinkSeq DevExch }
Jan 5 18:53:19 tower kernel: ata2.00: failed command: READ DMA EXT
Jan 5 18:53:19 tower kernel: ata2.00: cmd 25/00:40:c0:ae:11/00:05:2f:00:00/e0 tag 5 dma 688128 in
Jan 5 18:53:19 tower kernel: res 50/00:00:bf:ae:11/00:00:2f:00:00/e0 Emask 0x50 (ATA bus error)
Jan 5 18:53:19 tower kernel: ata2.00: status: { DRDY }
Jan 5 18:53:19 tower kernel: ata2: hard resetting link
Jan 5 18:53:24 tower kernel: ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
Jan 5 18:53:24 tower kernel: ata2.00: configured for UDMA/33
Jan 5 18:53:24 tower kernel: ata2: EH complete
Jan 5 18:53:24 tower kernel: ata2.00: exception Emask 0x10 SAct 0x0 SErr 0x4890000 action 0xe frozen
Jan 5 18:53:24 tower kernel: ata2.00: irq_stat 0x0c400040, interface fatal error, connection status changed
Jan 5 18:53:24 tower kernel: ata2: SError: { PHYRdyChg 10B8B LinkSeq DevExch }
Jan 5 18:53:24 tower kernel: ata2.00: failed command: READ DMA EXT
Jan 5 18:53:24 tower kernel: ata2.00: cmd 25/00:40:40:d1:11/00:05:2f:00:00/e0 tag 29 dma 688128 in
Jan 5 18:53:24 tower kernel: res 50/00:00:3f:d1:11/00:00:2f:00:00/e0 Emask 0x10 (ATA bus error)
Jan 5 18:53:24 tower kernel: ata2.00: status: { DRDY }
Jan 5 18:53:24 tower kernel: ata2: hard resetting link
Jan 5 18:53:30 tower kernel: ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
Jan 5 18:53:30 tower kernel: ata2.00: configured for UDMA/33
Jan 5 18:53:30 tower kernel: ata2: EH complete
Jan 5 18:53:30 tower kernel: ata2.00: exception Emask 0x10 SAct 0x0 SErr 0x4890000 action 0xe frozen
Jan 5 18:53:30 tower kernel: ata2.00: irq_stat 0x0c400040, interface fatal error, connection status changed
Jan 5 18:53:30 tower kernel: ata2: SError: { PHYRdyChg 10B8B LinkSeq DevExch }
Jan 5 18:53:30 tower kernel: ata2.00: failed command: READ DMA EXT
Jan 5 18:53:30 tower kernel: ata2.00: cmd 25/00:80:40:0a:12/00:01:2f:00:00/e0 tag 27 dma 196608 in
Jan 5 18:53:30 tower kernel: res 50/00:00:3f:0a:12/00:00:2f:00:00/e0 Emask 0x10 (ATA bus error)
Jan 5 18:53:30 tower kernel: ata2.00: status: { DRDY }
Jan 5 18:53:30 tower kernel: ata2: hard resetting link
Jan 5 18:53:36 tower kernel: ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
Jan 5 18:53:36 tower kernel: ata2.00: configured for UDMA/33
Jan 5 18:53:36 tower kernel: ata2: EH complete
Jan 5 18:53:36 tower kernel: ata2.00: exception Emask 0x50 SAct 0x0 SErr 0x4890800 action 0xe frozen
Jan 5 18:53:36 tower kernel: ata2.00: irq_stat 0x0c400040, interface fatal error, connection status changed
Jan 5 18:53:36 tower kernel: ata2: SError: { HostInt PHYRdyChg 10B8B LinkSeq DevExch }
Jan 5 18:53:36 tower kernel: ata2.00: failed command: READ DMA EXT
Jan 5 18:53:36 tower kernel: ata2.00: cmd 25/00:40:c0:68:12/00:05:2f:00:00/e0 tag 4 dma 688128 in
Jan 5 18:53:36 tower kernel: res 50/00:00:bf:68:12/00:00:2f:00:00/e0 Emask 0x50 (ATA bus error)
Jan 5 18:53:36 tower kernel: ata2.00: status: { DRDY }
Jan 5 18:53:36 tower kernel: ata2: hard resetting link

Reseat the cabling? Replace Sata Cable?

I got frustrated and replaced all cables in the box, and that seems to have stopped the error. So frustrating 😖