I have been stuck on this for months. I built a new PC, and every time I try to run Linux off a live USB drive, I get this after picking "Try Ubuntu" in the grub menu.

Sorry for cutting some of the ends off, but it was the only way to get a readable image.

The error reads:

No Caching mode page found

Assuming drive cache: write through

exception Emask 0x52 SAct 0x0 SErr 0xffffffff action 0xe frozen

SError: { RecovData RecovComm UnrecovData Persist Proto HostInt phyint CommWake 10B8B dispar BadCRC Handshk LinkSeq TrStans UnrecFIS DevExch}

failed command: IDENTIFY PACKET DEVICE

cmd a1/00:01:00:00:00/00:00:00:00:00/00 tag 2 pio 512 in

res 40/00:00:00:00:00:/00:00:00:00:00/00 Emask 0x56 (ATA bus error)

status: { DRDY }

Kernel panic -not syncing: Timeout synchronizing machine check over CPUs

Shutting down cpus with NMI

Kernel Offset: 0x1000000 from 0xffffffff81000000 (relocation range: ....

drm_kernel_helper: panic occurred, switching back to text console

Rebooting in 30 seconds..

I have tried everything. Switching distros, using disks and verifying the bootable USB (It works fine on other PCs).

The motherboard is a MSI Z97 MPOWER and the CPU is an i7 4790K.